Analog Devices ADP50460008 Owner's Manual
Analog Devices ADP50460008 Owner's Manual

Analog Devices ADP50460008 Owner's Manual

Compact pmu with six dc-to-dc channels, two ldos, load switch, and rtc

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ADI Confidential

FEATURES

Wide input voltage range: 2.1 V to 5.5 V
2.5 MHz switching frequency
Current mode architecture for best transient performance
Internal compensation and soft start
I
2
C-programmable output levels and power sequencing
PSM mode on Channel 1
Power
Channel 1: synchronous boost regulator, 1.2 A maximum
Channel 2: H-bridge buck-boost regulator, 0.9 A maximum
Channel 3: synchronous buck regulator, 1.8 A maximum
Channel 4: synchronous buck regulator, 0.9 A maximum
Channel 5: 45 mΩ load switch, 0.8 A
Channel 6: synchronous buck regulator, 0.9 A maximum
Channel 7: HV boost regulator for backlight LED,
up to 23.75 V (typical)
Channel 8: LDO regulator, 100 mA maximum
Channel 9: low quiescent current LDO, 50 mA maximum
Auxiliary
Real-time clock (RTC) with backup battery charger
Flexible power sequence control
Reset for external microprocessor
Package
4 mm × 4 mm, 64-ball WLCSP
Rev. Sp0
Information furnished by Analog Devices is believed to be accurate and reliable. However, no
responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other
rights of third parties that may result from its use. Specifications subject to change without notice. No
license is granted by implication or otherwise under any patent or patent rights of Analog Devices.
Trademarks and registered trademarks are the property of their respective owners.
Compact PMU with Six DC-to-DC Channels,

FUNCTIONAL BLOCK DIAGRAM

SCL
2
I
C
INTERFACE
SDA
REGISTER
POWER
SEQUENCER
ALARM OUT
RTC
LOGIC
CH 9 KEEP ALIVE
SUB CPU
LDO
REGULATOR
XTAL
32kHz
OSCILLATOR
BACKUP BATTERY
BACKUP
BATTERY
CHARGER
RESET
RESET OUT
Two LDOs, Load Switch, and RTC

APPLICATIONS

Digital still cameras
Digital video cameras
Multimedia devices
Space-constrained portable equipment

GENERAL DESCRIPTION

The ADP5046 is a compact, multi-output power management unit
(PMU) designed for space-constrained applications that require
high efficiency power regulation. The device includes a boost,
a buck-boost, and three buck regulators; two LDOs; a backlight
driver; a load switch; and an RTC/backup battery manager. The
total solution size is minimized through a combination of chip scale
packaging; high frequency switches; and the integration of power
FETs, external compensation, and feedback resistors. To ensure
maximum flexibility, the voltage outputs, power sequencing, and
soft start time can be programmed via the I
factory programming.
SYSTEM
CH 1 SYNC BOOST
REGULATOR
I/O
CH 2 BUCK-BOOST
REGULATOR
VCORE
CH 3 BUCK
REGULATOR
AUXILIARY
CH 4 BUCK
REGULATOR
AUXILIARY
CH 5 LOAD SWITCH
MEMORY
CH 6 BUCK
REGULATOR
BACKLIGHT LEDs
CH 7 BOOST
REGULATOR
ANALOG
CH 8 LDO
REGULATOR
Figure 1.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781.329.4700
Fax: 781.461.3113
ADP50460008
2
C interface or set by
www.analog.com
©2012 Analog Devices, Inc. All rights reserved.

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Summary of Contents for Analog Devices ADP50460008

  • Page 1: Features

    Information furnished by Analog Devices is believed to be accurate and reliable. However, no responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
  • Page 2: Table Of Contents

    Thermal Considerations ............54 Wake-Up Sequence ..............19 Applications Circuit ..............55 Reference Block ................20 Trim Settings for the ADP50460008 ..........56 32 kHz Oscillator ................ 20 Factory Programming Defaults ..........56 Real-Time Clock (RTC) ............. 20 Outline Dimensions ............... 57 Power-Up Sequencer ..............
  • Page 3: Specifications

    ADI Confidential ADP50460008 SPECIFICATIONS = 25°C, V = 3.6 V, V = 3.3 V, unless otherwise noted. VBATT VDDIO Table 1. Parameter Symbol Unit Test Conditions/Comments INPUT SUPPLY VOLTAGE RANGE Includes VBATT, PVIN2, PVIN3, PVIN4, PVIN6, VIN8, and VDDIO Minimum Power-Up V...
  • Page 4 ADP50460008 ADI Confidential Parameter Symbol Unit Test Conditions/Comments LOGIC OUTPUTS SDA Pin Low Level Output Voltage 3.0 mA sink current, −10°C ≤ T ≤ +85°C OL(SDA) Leakage Current = 3.3 V LEAK(SDA) CLKO Pin Low Level Output Voltage 3.0 mA sink current, −10°C ≤ T ≤...
  • Page 5: Dc-To-Dc Converter Block Specifications

    ADI Confidential ADP50460008 DC-TO-DC CONVERTER BLOCK SPECIFICATIONS = 25°C, V = 3.6 V, V = 3.3 V, unless otherwise noted. VBATT VDDIO Table 2. Parameter Symbol Unit Test Conditions/Comments CHANNEL 1 BOOST REGULATOR Channel 1 Output Voltage (V OUT1 Adjustable Range, 3 Bits...
  • Page 6 ADP50460008 ADI Confidential Parameter Symbol Unit Test Conditions/Comments CHANNEL 4 BUCK REGULATOR Channel 4 Output Voltage (FB4 Pin) Adjustable Range, 2 Bits 1.60 2.70 Feedback Voltage Accuracy at Default VID Code −1 Default VID code FB4(DEFAULT) −2 −10°C ≤ T ≤...
  • Page 7: Linear Regulator Block Specifications

    ADI Confidential ADP50460008 LINEAR REGULATOR BLOCK SPECIFICATIONS Table 3. Parameter Symbol Unit Test Conditions/Comments CHANNEL 8 LDO Output Voltage Adjustable Range, 3 Bits + 0.5 V OUT8 VIN8 OUT8 Voltage Accuracy at Default VID Code −1.5 +1.5 + 0.5 V...
  • Page 8: Housekeeping Block Specifications

    ADP50460008 ADI Confidential HOUSEKEEPING BLOCK SPECIFICATIONS = 25°C, V = 3.6 V, V = 3.3 V, unless otherwise noted. VBATT VDDIO Table 5. Parameter Symbol Unit Conditions/Comments CHANNEL 9 LDO Keep Alive LDO Operating Quiescent Current µA No load, V = 3.6 V...
  • Page 9: I 2 C Interface Timing Specifications

    ADI Confidential ADP50460008 C INTERFACE TIMING SPECIFICATIONS = 25°C, V = 3.6 V, V = 3.3 V, unless otherwise noted. VBATT VDDIO Table 6. Parameter Unit Description SCL clock frequency µs SCL high time HIGH µs SCL low time Data setup time SU,DAT µs...
  • Page 10: Absolute Maximum Ratings

    ADP50460008 ADI Confidential ABSOLUTE MAXIMUM RATINGS Table 7. Stresses above those listed under Absolute Maximum Ratings Parameter Rating may cause permanent damage to the device. This is a stress VBATT to GND −0.3 V to +6.5 V rating only; functional operation of the device at these or any VREGO to GND −0.3 V to +6.5 V...
  • Page 11: Pin Configuration And Function Descriptions

    ADI Confidential ADP50460008 PIN CONFIGURATION AND FUNCTION DESCRIPTIONS PGND7 BLGND7 VIN5 VOUT5 PGND3 PVIN3 PVIN2 PVIN2 OVP7 LSTR7 PGND3 PVIN3 SWA2 SWA2 ISET7 TEST4 TEST3 VIN8 VOUT8 PGND2 PGND2 ALMO VDDIO VOUT1 VOUT1 SWB2 SWB2 TEST2 VOUT2 VOUT2 TEST1 VBATT...
  • Page 12 ADP50460008 ADI Confidential Mnemonic Description VIN5 Input Power Supply for Channel 5 (Load Switch). LSTR7 LED String Sink for Channel 7 (Boost Regulator and LED Driver). This pin connects to the cathode side of the LED string. Connect this pin to ground if Channel 7 is not used.
  • Page 13: Typical Performance Characteristics

    ADI Confidential ADP50460008 TYPICAL PERFORMANCE CHARACTERISTICS = 2.6V = 4.5V = 3.6V = 3.6V = 2.6V = 4.5V 1000 10,000 OUTPUT CURRENT (mA) OUTPUT CURRENT (mA) Figure 4. Efficiency , Channel 1 (PSM), V = 3.6 V Figure 7. Efficiency, Channel 3, V = 1.1 V...
  • Page 14 ADP50460008 ADI Confidential 3.32 = 4.5V 3.32 = 3.6V = 2.6V 3.30 3.28 NOTES 1. THE OUTPUT VOLTAGE DEPENDS ON THE FORWARD VOLTAGE (V ) OF THE LEDs. 3.26 1000 OUTPUT CURRENT (mA) OUTPUT CURRENT (mA) Figure 10. Efficiency, Channel 7 with Four White LEDs Connected in Series Figure 13.
  • Page 15 ADI Confidential ADP50460008 1.82 1.81 OUT2 1.80 OUT3 1.79 OUT6 1.78 2ms/DIV 1000 EN 2V/DIV 1V/DIV OUT3 OUTPUT CURRENT (mA) 2V/DIV 2V/DIV OUT2 OUT6 Figure 18. Soft Start, V , and V Figure 16. Load Regulation, Channel 6, V = 1.8 V...
  • Page 16 ADP50460008 ADI Confidential = 10µF ±100mV = 44µF ±180mV L = 2.2µH L = 2.2µH OUT4 OUT1 LOAD LOAD 500mA 500mA 10mA 10mA OUT4 OUT1 LOAD LOAD 400µs/DIV 400µs/DIV 50mV/DIV 50mV/DIV OUT4 OUT1 250mA/DIV 250mA/DIV LOAD LOAD Figure 20. Load Transient Channel 1 (PWM), V = 5.0 V, 10 mA to 500 mA...
  • Page 17 ADI Confidential ADP50460008 = 22µF = 10µF ±150mV ±100mV L = 2.2µH L = 2.2µH OUT4 OUT1 4.2V 4.2V 2.6V 2.6V OUT4 OUT1 400µs/DIV 400µs/DIV 50mV/DIV 100mV/DIV OUT1 OUT4 1V/DIV 1V/DIV Figure 26. Line Transient, Channel 1 (PWM), V = 5.0 V, 10 mA Figure 29.
  • Page 18: Theory Of Operation

    LEVEL POWER SEQUENCER SHIFTER CONTROL the PMU registers. Contact an Analog Devices, Inc., representative for information about the factory programming options that are REF_GOOD EN_REF available. Figure 31. Enable Circuit ENABLE The enable pin (EN) controls the on and off states of the ADP5046.
  • Page 19: Wake-Up Sequence

    ADI Confidential ADP50460008 WAKE-UP SEQUENCE If the state machine does not detect a fault condition, the regulator turn-on sequence begins after the enable turn-on The ADP5046 wake-up sequence is shown in Figure 33. Wake-up delay has elapsed. starts when the main battery voltage rises above the system under- The regulators (except Channel 4, Channel 5, and Channel 7) voltage level (UVLO_SYS).
  • Page 20: Reference Block

    ADP50460008 ADI Confidential REFERENCE BLOCK The 32 kHz oscillator has a dedicated calibration register (Register RTCADJ, Address 40) to fine-tune the frequency (see The reference block contains the voltage reference circuit. It also Table 54). The value that is written in Register RTCADJ, Bits[5:0], monitors the overtemperature, the switching oscillation, the power is the correction amount in parts per million (ppm).
  • Page 21: Power-Up Sequencer

    ADI Confidential ADP50460008 The soft start of each regulator can be programmed to two levels POWER-UP SEQUENCER (see Table 17 to Table 21). The soft start circuit limits the inrush The sequencer block controls the activation and turn-on order current when a regulator turns on and the output capacitors are of the regulators (see the timing diagram in Figure 37, but note charged.
  • Page 22: Countdown Alarm Timer

    ADP50460008 ADI Confidential COUNTDOWN ALARM TIMER The autoenable feature wakes up the ADP5046 without EN being set to logic level high. A factory-set trim option controls The countdown timer can be used to periodically enable the system the autoenable feature: Option 1 uses the autoenable feature;...
  • Page 23: Undervoltage Protection (Uvp) And Overvoltage Protection (Ovp)

    ADI Confidential ADP50460008 UNDERVOLTAGE PROTECTION (UVP) AND The OVP thresholds for Channel 2, Channel 3, Channel 4, and Channel 6 are 125% of their nominal output voltage. The OVP OVERVOLTAGE PROTECTION (OVP) for Channel 7 is monitored at the OVP7 pin, and the threshold Channel 2, Channel 3, Channel 6, and Channel 8 have individual is 24.3 V typical.
  • Page 24: System Reset For External Processor (Poco)

    ADP50460008 ADI Confidential SYSTEM RESET FOR EXTERNAL PROCESSOR (POCO) The ADP5046 has a low quiescent current power save mode (PSM) VBATT boost regulator to maintain the voltage of the VDD pin above 3.6 V. Therefore, the keep alive LDO output (VREGO) can consistently UVLO_SYS supply a stable 3.2 V to external circuits that are always on, such...
  • Page 25 ADI Confidential ADP50460008 C Interface Timing Figure 46 and Figure 47 show diagrams of read mode timing. The I C interface operates at clock frequencies of up to 400 kHz. The ADP5046 includes an I C-compatible serial interface for control of the power management blocks and for reading back The registers from Address 32 to Address 62 have a special the RTC registers and system status.
  • Page 26: Voltage Regulator Block

    ADP50460008 ADI Confidential VOLTAGE REGULATOR BLOCK Channel 1 soft start is affected by the voltage that precharges the Channel 1 Boost Regulator output capacitor connected to VOUT1. This occurs because the synchronous PFET body diode is forwardbiased, connecting the The Channel 1 boost regulator provides a regulated output voltage battery voltage to VOUT1.
  • Page 27 ADI Confidential ADP50460008 guarantees full discharge of the output capacitor when the Channel 2 Buck-Boost Regulator regulator is turned off. The Channel 2 buck-boost regulator provides a regulated The regulator discharge switch for Channel 2 is controlled by output voltage that is higher or lower than the input voltage Bit 3 in Register DSCG at Address 1 (see Table 14 and Table 15).
  • Page 28 ADP50460008 ADI Confidential Channel 3 Buck Regulator Channel 3 includes an internal soft start function that ramps the output voltage in a controlled manner upon startup, thereby The Channel 3 buck regulator is a highly efficient, step-down limiting the inrush current. This prevents possible input voltage dc-to-dc converter that utilizes a high speed, fixed-frequency drops when a battery is connected to the input of the converters.
  • Page 29 ADI Confidential ADP50460008 Channel 4 Buck Regulator Channel 4 includes an internal soft start function that ramps the output voltage in a controlled manner upon startup, thereby The Channel 4 buck regulator is a highly efficient step-down limiting the inrush current. This prevents possible input voltage dc-to-dc converter that utilizes a high speed, fixed-frequency drops when a battery is connected to the input of the converter.
  • Page 30 ADP50460008 ADI Confidential Channel 5 Load Switch An external capacitor can be used at the output node for noise filtering purposes in noise-sensitive applications (see Figure 53). Channel 5 is a low R switch featuring an internal soft start To guarantee low on resistance at the switch, the voltage at the function that ramps the output voltage in a controlled manner VIN5 pin must be at least 0.9 V lower than the voltage at the VDD...
  • Page 31 ADI Confidential ADP50460008 The output of Channel 6 is programmable through the I When I C mode is selected, Channel 6 on/off activation is interface in the range of 1.46 V to 2.5 V. The Channel 6 block controlled by Bit 4 in Register PCTRL at Address 32 (see Table 51 has an adjustable mode option, as well, that can be programmed and Table 52).
  • Page 32 ADP50460008 ADI Confidential Channel 7 Backlight Boost Regulator and option with a default value of 2.5 MHz. Channel 7 includes an overvoltage detection circuit that protects the regulator in case LED Driver of an LED failure or string disconnection. The overvoltage...
  • Page 33: Housekeeping Block

    ADI Confidential ADP50460008 Channel 8 Auxiliary LDO HOUSEKEEPING BLOCK Channel 9 Keep Alive LDO Channel 8 is an auxiliary LDO that is programmable in fixed voltage steps between 1.5 V and 3.5 V. It is stable with a 1 µF,...
  • Page 34: Control Register Map

    ADP50460008 ADI Confidential CONTROL REGISTER MAP Table 12. Control Register Map Addr. (Dec) Register Reserved DSCG DSCG4_ON DSCG2_ON DSCG3_ON DSCG5_ON DSCG6_ON SFTTIM Reserved EN_DLY12 EN_DLY1_3 EN_DLY1_2 EN_DLY1_1 EN_DLY1_0 EN_DLY2_3 EN_DLY2_2 EN_DLY2_1 EN_DLY2_0 EN_DLY36 EN_DLY3_3 EN_DLY6_3 EN_DLY6_2 EN_DLY6_1 EN_DLY6_0 EN_DLY3_2 EN_DLY3_1...
  • Page 35: Control Register Read/Write And Reset

    ADI Confidential ADP50460008 CONTROL REGISTER READ/WRITE AND RESET Table 13. Operations and Reset Condition of Registers Address (Dec) Register Read/Write Read Only Write Only Reset Conditions Reserved DSCG B4 to B0 UVLO_SYS SFTTIM B7 to B0 UVLO_SYS Reserved EN_DLY12 B7 to B0...
  • Page 36: Control Register Details

    ADP50460008 ADI Confidential CONTROL REGISTER DETAILS Address 1—DSCG (Discharge Switch Register) Table 14. Bus Assignment Bit Map B7 (MSB) B0 (LSB) DSCG4_ON DSCG2_ON DSCG3_ON DSCG5_ON DSCG6_ON Table 15. Discharge Switch Register Bit Definitions Description DSCG4_ON Channel 4 discharge switch at disable. 1: discharge switch on; 0: discharge switch off (default).
  • Page 37 ADI Confidential ADP50460008 Address 4—EN_DLY12 (Channel 1 and Channel 2 Enable Delay Time Register) Table 22. Bus Assignment Bit Map B7 (MSB) B0 (LSB) EN_DLY1_3 EN_DLY1_2 EN_DLY1_1 EN_DLY1_0 EN_DLY2_3 EN_DLY2_2 EN_DLY2_1 EN_DLY2_0 Table 23. Enable Delay for Channel 1 and Channel 2...
  • Page 38 ADP50460008 ADI Confidential Address 5—EN_DLY36 (Channel 3 and Channel 6 Enable Delay Time Register) Table 25. Bus Assignment Bit Map B7 (MSB) B0 (LSB) EN_DLY3_3 EN_DLY3_2 EN_DLY3_1 EN_DLY3_0 EN_DLY6_3 EN_DLY6_2 EN_DLY6_1 EN_DLY6_0 Table 26. Enable Delay for Channel 3 and Channel 6...
  • Page 39 ADI Confidential ADP50460008 Address 6—EN_DLY8 (Channel 8 Enable Delay Time Register) Table 28. Bus Assignment Bit Map B7 (MSB) B0 (LSB) EN_DLY8_3 EN_DLY8_2 EN_DLY8_1 EN_DLY8_0 Table 29. Enable Delay for Channel 8 Bits Description EN_DLY8_3 Channel 8 enable delay time, 16 ms...
  • Page 40 ADP50460008 ADI Confidential Address 8—VID12 (Channel 1 and Channel 2 VID Setting Register) Table 34. Bus Assignment Bit Map B7 (MSB) B0 (LSB) VID1_2 VID1_1 VID1_0 VID2_2 VID2_1 VID2_0 Table 35. Channel 1 VID Settings Setting OUT1 Table 36. Channel 2 VID Settings...
  • Page 41 ADI Confidential ADP50460008 Address 9—VID34 (Channel 3 and Channel 4 VID Setting Register) Table 37. Bus Assignment Bit Map B7 (MSB) B0 (LSB) VID3_3 VID3_2 VID3_1 VID3_0 VID4_1 VID4_0 Table 38. Channel 3 VID Settings Setting OUT3 1.26 1.24 1.22 1.20...
  • Page 42 ADP50460008 ADI Confidential Address 11—VID78 (Channel 7 IID and Channel 8 VID Setting Register) Table 42. Bus Assignment Bit Map B7 (MSB) B0 (LSB) IID7_4 IID7_3 IID7_2 IID7_1 IID7_0 VID8_2 VID8_1 VID8_0 Table 43. Channel 7 IID Settings Table 44. Channel 8 VID Settings...
  • Page 43 ADI Confidential ADP50460008 Address 13—OVPST (OVP Status Register) Table 47. Bus Assignment Bit Map B7 (MSB) B0 (LSB) Table 48. Overvoltage Status for Channel 2, Channel 3, Channel 6, and Channel 7 Bits Description Channel 7 overvoltage status. 1: the channel is in overvoltage condition.
  • Page 44 ADP50460008 ADI Confidential Address 33 to Address 39—RTCT (Set for Time Registers) Table 53. Bus Assignment Bit Map for the RTCT Registers 1, 2 Register Data Range B7 (MSB) B0 (LSB) RTCT_SEC 0 to 59 RDST_TSEC SEC_5 SEC_4 SEC_3 SEC_2...
  • Page 45 ADI Confidential ADP50460008 Address 60 and Address 61—RTCALR (RTC Countdown Alarm Timer Repeat Data Registers) Table 57. Bus Assignment Bit Map for the RTCALR Registers Data Register Range B7 (MSB) B0 (LSB) RTCALR_SEC 0 to 119 RDST_RSEC RSEC_6 RSEC_5 RSEC_4...
  • Page 46 ADP50460008 ADI Confidential Address 100—SEQ_MODE (Sequencer Mode Setting Register for Channel 6 and Channel 8) Table 63. Bus Assignment Bit Map B7 (MSB) B0 (LSB) OPT_MODE_EN6 OPT_MODE_EN8 Table 64. SEQ_Mode Programming Bits Bits Description OPT_MODE_EN6 Mode for Channel 6 turning on.
  • Page 47: Applications Information

    VID option table. If the adjustable mode is used in the applications, it is recommended to contact an Analog Devices representative. Rev. Sp0 | Page 47 of 60...
  • Page 48: External Component Selection For The Buck-Boost Regulator (Channel 2)

    ADP50460008 ADI Confidential EXTERNAL COMPONENT SELECTION FOR THE Ceramic multilayer inductors can be used in low current designs for a reduced overall solution size and DCR. Such inductors are BUCK-BOOST REGULATOR (CHANNEL 2) available in low profile packages. Care must be taken because...
  • Page 49 ADI Confidential ADP50460008 Table 70. Suggested Output Capacitors for Channel 2 Dimensions Vendor Working Voltage (V) Capacitor (µF) Model L × W × H (mm) Murata GRM188R60J106ME47J 1.6 × 0.8 × 0.8 C1608JB0J106K 1.6 × 0.8 × 0.8 Taiyo Yuden JMK107BJ106MA-T 1.6 ×...
  • Page 50: External Component Selection For Boost Regulators

    ADP50460008 ADI Confidential EXTERNAL COMPONENT SELECTION FOR BOOST For Channel 7, the soft start time is affected by the output capacitor value. A larger output capacitor increases the soft start REGULATORS time. For Channel 1 and Channel 4, the soft start time is not...
  • Page 51 ADI Confidential ADP50460008 Channel 7 LED Current Setting If a PWM signal is used to control the LED current, add a filter composed of R and C to transform the digital on/off Channel 7 is a boost regulator with a constant current control.
  • Page 52: Typical Power Supply For Digital Still Cameras (Dsc)

    ADP50460008 ADI Confidential supply be applied from Channel 1. Channel 2 (buck-boost) TYPICAL POWER SUPPLY FOR DIGITAL STILL provides the supply voltage for the I/O rail. Channel 3 and Channel 6 CAMERAS (DSC) (buck) are used to supply the main processor core and memory, Figure 61 shows the system block diagram of the ADP5046 when respectively.
  • Page 53: Layout And Design Recommendations

    ADI Confidential ADP50460008 A boost regulator has discontinuous current flowing in the LAYOUT AND DESIGN RECOMMENDATIONS output node. The output capacitor provides current to the load For effective results, use at least a 6-layer printed circuit board during the on time, and it is recharged by the energy stored in (PCB) to provide the needed flexibility for routing to sensitive the inductor during the off time.
  • Page 54: Thermal Considerations

    ADP50460008 ADI Confidential THERMAL CONSIDERATIONS To investigate the junction temperature in the package, it is recommended, instead, that the case temperature of the package The ADP5046 provides high efficiency performance. However, be measured under worst-case conditions. The case temperature in applications with maximum loads at high ambient temperature...
  • Page 55: Applications Circuit

    ADI Confidential ADP50460008 APPLICATIONS CIRCUIT VREGO 1µF FILTER OR RESISTOR CONTROLLER/ FROM CHANNEL 1 SUB-CPU FROM CHANNEL 2 OUT1 VDDIO OUT2 POWER VDDIO 10kΩ 10kΩ ENABLE PVIN3 BUFFER INTERFACE REGISTERS VBATT PVIN3 10µF 1.3µH CHANNEL 3 VOUT1 4.5V TO 5.2V 44µF...
  • Page 56: Trim Settings For The Adp50460008

    ADP50460008 ADI Confidential TRIM SETTINGS FOR THE ADP50460008 FACTORY PROGRAMMING DEFAULTS For more information about the available factory programming options, contact an Analog Devices representative. Table 74. Factory Programming Default Settings Address Bit Numbers Bit Name Setting Binary Code Decimal Code...
  • Page 57: Outline Dimensions

    ADI Confidential ADP50460008 OUTLINE DIMENSIONS 4.00 3.96 SQ 3.92 BALL A1 IDENTIFIER 3.50 BSC SQ 0.50 BALL PITCH TOP VIEW BOTTOM VIEW (BALL SIDE DOWN) (BALL SIDE UP) 0.385 0.360 0.650 SIDE VIEW 0.335 0.600 0.550 COPLANARITY 0.05 0.360 SEATING 0.265...
  • Page 58 ADP50460008 ADI Confidential NOTES Rev. Sp0 | Page 58 of 60...
  • Page 59 ADI Confidential ADP50460008 NOTES Rev. Sp0 | Page 59 of 60...
  • Page 60 ADI Confidential NOTES C refers to a communications protocol originally developed by Philips Semiconductors (now NXP Semiconductors). ©2012 Analog Devices, Inc. All rights reserved. Trademarks and registered trademarks are the property of their respective owners. D10847-0-9/12(Sp0) Rev. Sp0 | Page 60 of 60...

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