IC manufacturers Texas Instruments

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Texas Instruments TPS62151

3-17V 1A Step-Down Converter in 3x3 QFN Package

Overview

TopologyBuck Converter
Input voltage3-17 V
Output 11.8 V / 1 A
IC revisionC

Description

The TPS6215X family is an easy to use synchronous step down DC-DC converter optimized for applications with high power density. A high switching frequency of typically 2.5MHz allows the use of small inductors and provides fast transient response as well as high output voltage accuracy by utilization of the DCS-Control™ topology.

With its wide operating input voltage range of 3V to 17V, the devices are ideally suited for systems powered from either a Li-Ion or other batteries as well as from 12V intermediate power rails. It supports up to 1A continuous output current at output voltages between 0.9V and 6V (with 100% duty cycle mode).

The output voltage startup ramp is controlled by the soft-start pin, which allows operation as either a standalone power supply or in tracking configurations.Power sequencing is also possible by configuring the Enable and open-drain Power Good pins.

In Power Save Mode, the devices show quiescent current of about 17μA from VIN. Power Save Mode, entered automatically and seamlessly if load is small, maintains high efficiency over the entire load range.In Shutdown Mode, the device is turned off and shutdown current consumption is less than 2μA.

The device, available in adjustable and fixed output voltage versions, is packaged in a 16-pin QFN package measuring 3 × 3 mm (RGT).

Features

  • DCS-ControlTM Topology
  • Input Voltage Range: 3 to 17V
  • Up to 1A Output Current
  • Adjustable Output Voltage from 0.9 to 6V
  • Pin-Selectable Output Voltage (nominal, + 5%)
  • Programmable Soft Start and Tracking
  • Seamless Power Save Mode Transition
  • Quiescent Current of 17µA (typ.)
  • Selectable Operating Frequency
  • Power Good Output
  • 100% Duty Cycle Mode
  • Short Circuit Protection
  • Over Temperature Protection
  • Available in a 3 × 3 mm, QFN-16 Package

REMARKS:-Refer table 2. list of inductorspage no.18

Typical applications

  • Embedded Systems
  • LDO replacement
  • Standard 12V Rail Supplies
  • Solid-State Disk Drives
  • POL Supply from Single or Multiple Li-Ion battery
  • Mobile PC's, Tablet, Modems, Cameras

Products

Order Code Data­sheet Simu­lation Downloads Status Product seriesL
(µH)
IR
(A)
ISAT
(A)
fres
(MHz)
Mount Samples
744025003SPEC
8 files Active i| Production is active. Expected lifetime: >10 years.WE-TPC SMT Tiny Power Inductor 3.3 1.5 1.8 100 SMT
Order Code Data­sheet Simu­lation
744025003SPEC
Samples
Order Code Data­sheet Simu­lation Downloads Status Product seriesL
(µH)
IR
(A)
ISAT
(A)
fres
(MHz)
Mount Samples