High Accuracy 3-V to 17-V 4-A Step-Down Converters
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TPS62135, TPS621351
SLVSBH3B – JU...
Description
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TPS62135, TPS621351
SLVSBH3B – JUNE 2016 – REVISED APRIL 2017
TPS62135, TPS621351 High Accuracy 3-V to 17-V 4-A Step-Down Converters with DCS-Control™
1 Features
1 Output Voltage Accuracy ± 1% (PWM mode) Input Voltage Range: 3 V to 17 V Quiescent Current 18 µA Typ Output Voltage from 0.8 V to 12 V Adjustable Soft-Start Forced PWM or PWM/PFM operation Typical switching frequency of 2.5MHz in forced
PWM Precise ENABLE input allows
– User-Defined Undervoltage Lockout – Exact Sequencing 100% Duty Cycle Mode Automatic Efficiency Enhancement AEE™ DCS-Control™ Topology Available with Active Output Discharge Optional HICCUP Overcurrent Protection Power Good Output Available in 3-mm x 2-mm VQFN Package
2 Applications
Standard 12-V Rail Supplies POL for Connected Standby Requirements POL Supply from Single or Multiple Li-Ion Battery Gaming Consoles, SSD Drives Mobile and Embedded Computers
VBAT = 3.0V to 17V 10uF
Simplified Schematic
TPS62135 VIN SW
VOS EN
FB
1 uH
VSEL
PG
VOUT = 0.8V to 12V
R1 22uF
R 2
MODE
FB2
SS/TR
GND
Copyright © 2016, Texas Instruments Incorporated
1
3 Description
The TPS62135 and TPS621351 are high efficiency and easy to use synchronous step-down DC-DC converters, based on the DCS-Control™ Topology. The devices wide input voltage range of 3-V to 17-V makes it suitable for multi-cell Li-Ion as well as 12-V intermediate supply ...
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