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TPS60403DBVR

TITPS60403DBVR

Texas Instruments
Small, low-noise charge-pump inverter in a tiny package suitable for compact portable applications where board space is constrained.
NRND10,933 in stock

Overview

The TPS60403DBVR is a fixed-frequency charge pump voltage inverter designed to generate a negative output voltage from a positive input source. It operates at a 250kHz switching frequency, delivering up to 60mA of output current with high efficiency in a compact SOT-23 package. The device is specifically engineered for simple, low-noise bipolar power supply rails without the need for an inductor.

Why Choose This Part

The integrated active Schottky diode facilitates reliable start-up into heavy loads, while the small SC-74A/SOT-23 footprint minimizes board space requirements. Its wide input voltage range of 1.6V to 5.5V makes it compatible with various battery chemistries and standard logic rails.

Applications

Operational Amplifier Biasing
Generating a negative rail from a single 5V or 3.3V supply to power dual-rail analog components.
LCD Bias Supplies
Providing the necessary negative contrast voltage for small character or graphic LCD modules.
Portable Instrumentation
Creating split-rail supplies for precision sensors and data converters in battery-powered hand-held devices.

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 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

Implementation requires only three external capacitors: one input, one output, and one flying capacitor for the charge pump mechanism. Engineers should place capacitors as close to the IC pins as possible to minimize EMI and voltage ripple. Evaluation can be performed using generic SOT-23 breakout boards if a specific EVM is unavailable.