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TPS60400DBVR

TITPS60400DBVR

Texas Instruments
Simpler inverter variant in the same family for designs that only need a negative rail and want a compact, low-noise charge pump.
NRND20,122 in stock
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Overview

The TPS60400DBVR is a charge pump voltage inverter that generates a negative output voltage from a positive input ranging from 1.6V to 5.5V. It provides up to 60mA of output current and utilizes a PowerSave-Mode to maintain high efficiency during light-load conditions. The device is designed for simplicity, requiring only three external 1-microfarad ceramic capacitors to complete the circuit.

Why Choose This Part

This component eliminates the need for an inductor, reducing both board space and electromagnetic interference (EMI). It features a typical quiescent current of only 65 microamps and includes an integrated active Schottky diode to ensure reliable start-up into a load.

Applications

Negative Bias Supplies
Generating negative rails for operational amplifiers and data converters in single-supply systems.
LCD Bias
Providing the necessary negative contrast voltage for small liquid crystal displays.
GaAs FET Biasing
Creating the negative gate drive voltage required for Gallium Arsenide field-effect transistors.
Portable Instrumentation
Supplying bipolar rails in battery-powered handheld devices where space is at a premium.

Key Specifications

Function Ratiometric
Topology Charge Pump
Output Type Fixed
Mounting Type Surface Mount
Package / Case SC-74A, SOT-753
Current - Output 60mA
Number of Outputs 1
Output Configuration Positive or Negative
Frequency - Switching 50kHz ~ 250kHz
Operating Temperature -40degC ~ 125degC (TJ)
Synchronous Rectifier No
Voltage - Input (Max) 5.25V
Voltage - Input (Min) 1.8V
Supplier Device Package SOT-23-5
Voltage - Output (Min/Fixed) -Vin, 2Vin, Vin/2

Getting Started

To implement the TPS60400DBVR, place 1-microfarad ceramic capacitors close to the VIN, VOUT, and CFLY pins to minimize parasitic inductance. Ensure the input voltage does not exceed 5.5V, and verify that the 60mA output limit meets your load requirements during worst-case operating temperatures.

Categories

Power Management > DC-DC Converters