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ISL8202MEVAL1Z Evaluation Board User Guide
The
ISL8202M
power module is a single-channel synchronous
step-down complete power supply, capable of delivering up to
3A of continuous current. Operating from a single 2.6V to 5.5V
input power rail and integrating a controller, power inductor
and MOSFETs, ISL8202M can achieve up to 95% conversion
efficiency. It also provides fast transient response with
excellent loop stability as well as deliver output voltage as low
as 0.6V. Switching frequency is also adjustable from 680kHz
to 3.5MHz with either external resistor or SYNC clock option.
Selectable PFM mode can also be enabled to boost up
light-load efficiency to extend battery life. Other features
include programmable soft-start, soft-stop, input undervoltage
lockout, 100% duty cycle operation, over-temperature,
overcurrent/short-circuit with hiccup mode, overvoltage and
negative overcurrent protection. It also has a dedicated enable
pin and power-good flag that allow for easy system power rails
sequencing.
The ISL8202MEVAL1Z evaluation board is designed to
demonstrate the performance of the ISL8202M. The board is
by default set to be 1.2V output voltage with 1.5MHz switching
frequency. Other output voltage values can be easily set by
changing the jumper position. Switching frequency can be
adjusted by changing the FS pin resistor.
References
•
ISL8202M
datasheet
May 3, 2016
UG071.0
FIGURE 1. ISL8202MEVAL1Z BLOCK DIAGRAM
1
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
1-888-INTERSIL or 1-888-468-3774
Key Features
• 2.6V to 5.5V input voltage range
• Adjustable output voltage as low as 0.6V with ±1.6%
accuracy over line/load/temperature
• Default 1.8MHz current mode control operations
- 680kHz to 3.5MHz resistor adjustable
- External synchronization up to 3.5MHz
- Selectable light-load efficiency mode
- 100% duty cycle LDO mode
• Programmable soft-start and soft-stop output discharge
• Dedicated enable pin and power-good flag
• UVLO, over-temperature, overcurrent, overvoltage and
negative overcurrent protections
Specifications/Default Set-Up
• V
= 2.6V to 5.5V
IN
• V
options (via jumper selection): 1V, 1.2V, 2.5V, 3.3V
OUT
• MAX I
up to 3A
OUT
• f
= 1.5MHz by default
SW
• Set to PWM mode by default
• 1ms soft-start time by default
Ordering Information
PART NUMBER
ISL8202MEVAL1Z ISL8202M single 3A power module evaluation
board
|
Copyright Intersil Americas LLC 2016. All Rights Reserved
Intersil (and design) is a trademark owned by Intersil Corporation or one of its subsidiaries.
All other trademarks mentioned are the property of their respective owners.
User Guide 071
DESCRIPTION
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Related Manuals for Intersil ISL8202MEVAL1Z
Summary of Contents for Intersil ISL8202MEVAL1Z
- Page 1 CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures. 1-888-INTERSIL or 1-888-468-3774 Copyright Intersil Americas LLC 2016. All Rights Reserved UG071.0 Intersil (and design) is a trademark owned by Intersil Corporation or one of its subsidiaries. All other trademarks mentioned are the property of their respective owners.
-
Page 2: Recommended Equipment
ISL8202M datasheet. • Digital Multimeters (DMMs) Quick Start • 100MHz quad-trace oscilloscope Functional Description The ISL8202MEVAL1Z is set to be V = 1.2V, f = 1.5MHz by default. For other V options, the recommended f needs to be adjusted by changing resistor (R ) connected to the FS pin. - Page 3 Operation Range Feed-Forward Capacitor Selection By default, the ISL8202MEVAL1Z is configured to operate at In typical applications where the output capacitors are all ceramic, = 1.2V (J1 jumper position is at pins 5 and 6), f = 1.5MHz...
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Page 4: Current Derating
SGND by putting a 0Ω resistor on R Soft Start-Up The soft start-up reduces the inrush current during the start up. For ISL8202MEVAL1Z, the soft start-up time is set to 1ms by default through C . However, start-up time can be adjusted by... - Page 5 ISL8202MEVAL1Z Schematic ISL8202MIRZ VOUT VOUT BAN3 PGND BAN4 VSENSE BAN1 PGOOD PGND PGND SYNC PGND PGND UNNAMED_1_ISL8202M_I106_2 VSENSE BAN2 SYNC PGND UNNAMED_1_ISL8202M_I106_16 UNNAMED_1_ISL8202M_I106_17 UNNAMED_1_ISL8202M_I106_18 UNNAMED_1_CONN8_I67_IN2 UNNAMED_1_CONN8_I67_IN1 UNNAMED_1_CONN8_I67_IN3 UNNAMED_1_CONN8_I67_IN5 UNNAMED_1_CONN8_I67_IN7 UNNAMED_1_GTSERIES_I4_NC 200K UNNAMED_1_SMCAP_I68_A ENABLE UNNAMED_1_SMLED_I105_A UNNAMED_1_NCHANNEL_I17_D PGOOD 2N7002-7-F DRAWN BY: DATE: ENGINEER: FIGURE 10.
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Page 6: Bill Of Materials
CONN-JUMPER, SHORTING, 2PIN, BLACK, GOLD, ROHS LED1 LITEON/VISHAY LTST-C190KGKT LED, SMD, 0603, GREEN CLEAR, 2V, 20mA, 571nm, 35mcd, ROHS INTERSIL ISL8202MIRZ IC-3A PWR MODULE, ANALOG DC/DC, 22P, QFN, 4.5x7.5, ROHS DIODES, INC. 2N7002-7-F TRANSISTOR, N-CHANNEL, 3LD, SOT-23, 60V, 115mA, ROHS... -
Page 7: Board Layout
User Guide 071 Board Layout FIGURE 11. TOP LAYER (TOP VIEW) FIGURE 12. INNER LAYER 1 (TOP VIEW) FIGURE 13. INNER LAYER 2 (TOP VIEW) FIGURE 14. BOTTOM LAYER (BOTTOM VIEW) Submit Document Feedback UG071.0 May 3, 2016... - Page 8 User Guide 071 ISL8202MEVAL1Z Performance Data The following data was acquired using a ISL8202MEVAL1Z evaluation board at +25°C ambient and free air 0LFM. 100.0 100.0 95.0 95.0 90.0 90.0 85.0 85.0 Vout = 1V , Fsw = 1.3MHz 80.0 80.0 Vout=1.2V , Fsw = 1.5MHz...
- Page 9 = 1.5MHz, T = +25°C, FREE AIR 0 LFM Intersil Corporation reserves the right to make changes in circuit design, software and/or specifications at any time without notice. Accordingly, the reader is cautioned to verify that the document is current before proceeding.
- Page 10 Mouser Electronics Authorized Distributor Click to View Pricing, Inventory, Delivery & Lifecycle Information: Intersil ISL8202MEVAL1Z...
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