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ISL9122AIIN-EVZ, ISL9122AIRN-EVZ
Evaluation Boards
The ISL9122AIIN-EVZ and ISL9122AIRN-EVZ platform allows quick evaluation of the high-performance features
of the
ISL9122A
buck-boost regulator. The ISL9122A is a highly integrated non-inverting buck-boost switching
regulator that accepts input voltages both above or below the regulated output voltage. It features an extremely
low quiescent current consumption, excellent efficiency and an I
registers, for output voltage and operation mode control.
Key Features
• Small, compact design
2
• I
C interface for programmable V
Forced PWM)
• Connectors, test points, and jumpers for easy probing
Specifications
The boards are designed to operate at the following operating conditions:
• Input voltage rating from 1.8V to 5.5V
• Programmable output voltage range of 1.8V to 5.375V and selectable transition slew rate through I
• Up to 500mA output current (V
• Operating temperature range: -40°C to +85°C
Ordering Information
Part Number
ISL9122AIIN-EVZ
ISL9122AIRN-EVZ
Related Literature
For a full list of related documents, visit our website:
•
ISL9122A
device page
VIN
GND
R12UZ0080EU0101 Rev.1.01
Oct.1.20
, slew rate and various operation modes (Forced Bypass, Auto-PFM,
OUT
= 3.6V, V
= 3.3V)
IN
OUT
Evaluation board for ISL9122AIINZ
Evaluation board for ISL9122AIRNZ
VIN
EN
SDA
SCL
2
I
C
Figure 1. ISL9122AIIN-EVZ, ISL9122AIRN-EVZ Block Diagram
2
C interface that allows you to access its internal
Description
LX1
LX2
VOUT
GND
User Manual
2
C interface
VOUT
GND
Page 1 of 16
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Related Manuals for Renesas ISL9122AIIN-EVZ
Summary of Contents for Renesas ISL9122AIIN-EVZ
- Page 1 User Manual ISL9122AIIN-EVZ, ISL9122AIRN-EVZ Evaluation Boards The ISL9122AIIN-EVZ and ISL9122AIRN-EVZ platform allows quick evaluation of the high-performance features of the ISL9122A buck-boost regulator. The ISL9122A is a highly integrated non-inverting buck-boost switching regulator that accepts input voltages both above or below the regulated output voltage. It features an extremely...
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Page 2: Functional Description
1. Functional Description Functional Description The ISL9122AIIN-EVZ and ISL9122AIRN-EVZ evaluation boards provide a simple platform to evaluate the feature-rich ISL9122A buck-boost regulator. Both boards have a 3.3V output after start-up and an output voltage that can be programmed by I C. - Page 3 Evaluation Software Installation and Use 1. The ISL9122 evaluation software is available for download from the Renesas website. Save the file and install the evaluation software by double clicking on the file name. Follow the instructions that appear on-screen to install the application.
- Page 4 ISL9122AIIN-EVZ, ISL9122AIRN-EVZ 1. Functional Description force a manual connection; the button should turn green. If the button remains brown, please check the cable connections, change to another USB port on computer, or try reinstalling the ISL9122 GUI software. 7. Set the 7-bit I C address to 0x18, which matches with ISL9122A I C address.
- Page 5 ISL9122AIIN-EVZ, ISL9122AIRN-EVZ 1. Functional Description Figure 3. ISL9122 Evaluation Software Window Table 2. Register Address 0x02: RO_REG1 Name Type Reset Description FAMILY_ID[1:0] Chip family identifier 0x0 = ISL9122 stand-alone converter family HW_REV[2:0] Chip revision level 0x3 = Hardware revision D...
- Page 6 ISL9122AIIN-EVZ, ISL9122AIRN-EVZ 1. Functional Description Table 5. Register Address 0X12: CONV_CFG Name Type Reset Description EN_AND Enable bit. ANDed with the enable input 0x0 = EN pin going high wakes up the I C, but does not start the converter. The converter is started by writing 1 to this bit...
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Page 7: Pcb Layout Guidelines
ISL9122AIIN-EVZ, ISL9122AIRN-EVZ 2. PCB Layout Guidelines PCB Layout Guidelines The ISL9122AIIN-EVZ and ISL9122AIRN-EVZ PCB layouts have been optimized for electrical and thermal performance. • The input and output capacitors should be positioned as close to the IC as possible. • The ground connections of the input and output capacitors should be kept as short as possible, and should be on the component layer to avoid problems that are caused by high-switching currents flowing through PCB vias. - Page 8 Vin = 1.8V to 5.5V ISL9122AII VOUT VOUT VOUT VOUT 47uF/16V VOUT 10uF/6.3V 10uF/6.3V OPEN OPEN P0.5_SCL CON3 P0.1_S29_MISO P0.4_SDA P0.2_S2.8_MOSI P0.0_S2.7_SCK OPEN OPEN P1.0_PB7 P0.3_S2.6_NSS P1.1_PB6 P2.1_PC6 P1.2_PB5 P2.0_PC7 P1.3_PB4 P1.7_PB0 P1.4_PB3 P1.6_PB1 P1.5_PB2 Figure 6. ISL9122AIIN-EVZ Circuit Schematic...
- Page 9 ISL9122AIRN-EVZ Circuit Schematic ISL9122AIR VOUT VOUT VOUT VOUT 47uF VOUT 10uF 10uF R3 1M OPEN OPEN P0.5_SCL P0.1_S29_MISO P0.4_SDA P0.2_S2.8_MOSI P0.0_S2.7_SCK OPEN OPEN P1.0_PB7 P0.3_S2.6_NSS P1.1_PB6 P2.1_PC6 P1.2_PB5 P2.0_PC7 P1.3_PB4 P1.7_PB0 P1.4_PB3 P1.6_PB1 P1.5_PB2 Figure 7. ISL9122AIRN-EVZ Circuit Schematic...
- Page 10 ISL9122AIIN-EVZ, ISL9122AIRN-EVZ 2. PCB Layout Guidelines ISL9122AIIN-EVZ Bill of Materials Reference Manufacturer Designator Part PCB Footprint Description Part Number Manufacturer 47µF/16V C_1210 CAP CER, X5R, SMD, ROHS, GRM32ER61C476ME15 Murata -55°C ~ 85°C C2, C3 10µF/6.3V C_0402 CAP CER, X5R, SMD, ROHS, GRM188R60J106ME84D Murata -55°C ~ 85°C...
- Page 11 ISL9122AIIN-EVZ, ISL9122AIRN-EVZ 2. PCB Layout Guidelines ISL9122AIRN-EVZ Bill of Materials Reference Manufacturer Designator Part PCB Footprint Description Part Number Manufacturer 47µF/16V C_1210 CAP CER, X5R, SMD, RoHS, GRM32ER61C476ME15 Murata -55°C ~ 85°C C2, C3 10µF/6.3V C_0603 CAP CER, X5R, SMD, RoHS, GRM188R60J106ME84D Murata -55°C ~ 85°C...
- Page 12 ISL9122AIIN-EVZ, ISL9122AIRN-EVZ 2. PCB Layout Guidelines ISL9122AIIN-EVZ Board Layout Figure 8. Top Layer Silk Screen Figure 9. Inner Layer 2 R12UZ0080EU0101 Rev.1.01 Page 12 of 16 Oct.1.20...
- Page 13 ISL9122AIIN-EVZ, ISL9122AIRN-EVZ 2. PCB Layout Guidelines Figure 10. Inner Layer 3 Figure 11. Bottom Layer Silk Screen R12UZ0080EU0101 Rev.1.01 Page 13 of 16 Oct.1.20...
- Page 14 ISL9122AIIN-EVZ, ISL9122AIRN-EVZ 2. PCB Layout Guidelines ISL9122AIRN-EVZ Board Layout Figure 12. Top Layer Silk Screen Figure 13. Inner Layer 2 R12UZ0080EU0101 Rev.1.01 Page 14 of 16 Oct.1.20...
- Page 15 ISL9122AIIN-EVZ, ISL9122AIRN-EVZ 2. PCB Layout Guidelines Figure 14. Inner Layer 3 Figure 15. Bottom Layer Silk Screen R12UZ0080EU0101 Rev.1.01 Page 15 of 16 Oct.1.20...
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Page 16: Revision History
ISL9122AIIN-EVZ, ISL9122AIRN-EVZ 3. Revision History Revision History Rev. Date Description 1.01 Oct.1.20 Updated Ordering Information table. Updated BOMs 1.00 Aug.18.20 Initial release R12UZ0080EU0101 Rev.1.01 Page 16 of 16 Oct.1.20... - Page 17 Renesas' products are provided only subject to Renesas' Terms and Conditions of Sale or other applicable terms agreed to in writing. No use of any Renesas resources expands or otherwise alters any applicable warranties or warranty disclaimers for these products.
- Page 18 Mouser Electronics Authorized Distributor Click to View Pricing, Inventory, Delivery & Lifecycle Information: Renesas Electronics ISL9122AIIN-EVZ...