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TPS7A0533PDQNR

TITPS7A0533PDQNR

Texas Instruments
Linear Voltage Regulator IC Positive Fixed 1 Output 200mA 4-X2SON (1x1)
Active24,346 in stock
Datasheet Digi-Key Compare Prices

Overview

The TPS7A0533PDQNR is an ultra-low quiescent current (Iq) linear voltage regulator designed for power-sensitive applications where battery life is critical. It provides a fixed 3.3V output and can deliver up to 200mA of current while consuming only 1uA of quiescent current. Its compact 1mm x 1mm X2SON package makes it ideal for space-constrained designs requiring high-efficiency standby performance.

Why Choose This Part

The primary advantage is the ultra-low 1uA quiescent current, which significantly extends battery life in always-on applications. It features robust protection including foldback current limiting, thermal shutdown, and under-voltage lockout (UVLO). The device also includes an active output discharge feature to ensure the load is quickly powered down when the regulator is disabled.

Applications

Battery-Powered IoT Nodes
Provides efficient power regulation for sensors and microcontrollers that spend long periods in sleep mode.
Wearable Electronics
The tiny X2SON footprint and low power consumption suit fitness trackers and smartwatches.
Remote Industrial Sensors
Reliable operation in remote locations where long intervals between battery replacements are necessary.
Portable Healthcare Devices
Supports handheld medical instruments requiring steady 3.3V rails with minimal idle power drain.

Key Specifications

PSRR 40dB (1kHz ~ 1MHz)
Output Type Fixed
Mounting Type Surface Mount
Package / Case 4-XDFN Exposed Pad
Control Features Enable
Current - Output 200mA
Protection Features Over Current, Over Temperature, Under Voltage Lockout (UVLO)
Number of Regulators 1
Output Configuration Positive
Operating Temperature -40degC ~ 125degC (TJ)
Voltage - Input (Max) 5.5V
Voltage Dropout (Max) 0.235V @ 200mA
Supplier Device Package 4-X2SON (1x1)
Current - Quiescent (Iq) 3 uA
Voltage - Output (Min/Fixed) 3.3V

Getting Started

To evaluate this part, use the TPS7A05EVM-040 evaluation module, which allows for testing of the 1uA Iq and transient response. Ensure a minimum 1uF ceramic output capacitor is placed close to the VOUT and GND pins for stability. Use the EN pin to toggle the device; pulling it low will activate the 0.1uA shutdown mode.

TPS7A0533 Family

Comparing specs that differ across variants. The current part is highlighted.

Part Number Package Voltage Dropout (Max) Stock
TPS7A0533PDQNR (this part) XDFN-4 0.235V 24,346
TPS7A0533PDBZR 3-236 0.24V 3,266

Also Consider

TPS7A0233PDQNR TITexas Instruments - Offers even lower quiescent current (25nA) for extreme battery life requirements at the same 200mA output.
AP7315-33W5-7 DIODiodes Incorporated - A cost-effective 150mA LDO alternative in a SOT-25 package for less space-constrained designs.