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TLV70233DBVR

300mA LDO, 3.3V fixed, 1uA Iq, 475mV dropout, +/-1%, SOT-23-5

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Manufacturer Part：

TLV70233DBVR

Package：

SOT-23-5 (2.9 x 1.6 x 1.1 mm)

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Description

Product Overview

The TLV70233DBVR from Texas Instruments is a 300mA low-dropout linear regulator with a fixed 3.3V output. It features 475mV dropout, 1uA Iq, and +/-1% accuracy in a tiny SOT-23-5 package.

Key Specifications

Output Voltage 3.3V Fixed
Output Current 300mA
Input Voltage Range 3.775V to 5.5V
Dropout Voltage 475mV (typ @ 300mA)
Quiescent Current 1uA (typ)
Output Accuracy +/-1%
PSRR 60dB @ 1kHz
Operating Temperature -40 to 125 C

Features

  • Ultra-low 1uA quiescent current
  • 475mV dropout at 300mA
  • +/-1% output voltage accuracy
  • Stable with 1uF ceramic capacitors
  • Active-high enable pin
  • Reverse current protection
  • Thermal shutdown and overcurrent protection

Applications

  • Portable battery-powered devices
  • IoT sensor power supplies
  • Wearable electronics
  • MCU and processor power
  • Smart meter power regulation

The TLV70233DBVR from Texas Instruments is a 300mA low-dropout linear regulator with a fixed 3.3V output and ultra-low 1uA quiescent current. Designed for battery-powered applications, the device features 475mV dropout voltage at 300mA and +/-1% output voltage accuracy over line, load, and temperature. The device is stable with small 1uF ceramic input and output capacitors, minimizing board space. An active-high enable pin allows logic-controlled shutdown with near-zero current consumption. Reverse current protection prevents current flow from output to input, eliminating the need for external blocking diodes. Thermal shutdown and overcurrent protection ensure robust operation under fault conditions. The TLV70233DBVR is available in a tiny SOT-23-5 package rated for -40 to 125 C.

The TLV70233DBVR operates as a CMOS LDO with ultra-low quiescent current design. Key subsystems include: (1) Voltage Reference – an internal sub-bandgap reference achieves 1uA quiescent current and +/-1% accuracy; (2) Error Amplifier – a low-power error amplifier compares the feedback voltage with the internal reference and drives the PMOS gate; (3) PMOS Pass Element – a P-channel MOSFET provides regulation with 475mV dropout at 300mA; (4) Reverse Current Protection – internal circuitry blocks current flow from output to input when VOUT exceeds VIN; (5) Enable Logic – active-high enable with controlled startup; (6) Protection – thermal shutdown and overcurrent limiting protect the device under fault conditions.

Pin Name Type Function
1 IN Power Input voltage supply (3.775V to 5.5V)
2 GND Ground Ground connection
3 EN Input Enable input (active high)
4 NC Unused No connect
5 OUT Output Regulated 3.3V output
  • Portable battery-powered devices with ultra-low standby current
  • IoT sensor node 3.3V power supplies
  • Wearable electronics with minimal quiescent current
  • MCU and processor 3.3V power with reverse current protection
  • Smart meter power regulation with 1uA standby
Manufacturer Part Number Package Notes
Texas Instruments TLV70218DBVR SOT-23-5 1.8V fixed version
Microchip MCP1804T-3302I/OT SOT-23-5 3.3V, 150mA, low Iq
onsemi NCP511SN330T1G SOT-23-5 3.3V, 150mA, low noise
Diodes Inc AP2112K-3.3TRG1 SOT-23-5 600mA, 3.3V
Richtek RT9013-33GB SOT-23-5 300mA, 3.3V, low noise
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Contact Information

Email: info@materialparts.com

Tel / WhatsApp: +86 13760382860

Service & Packaging

Materialparts is a professional electronic component supplier based in Shenzhen, China, with over 20 years of global trading experience. We integrate component procurement, quality inspection, technical support, customized packaging, and global delivery services to provide one-stop supply chain solutions. Our business covers industrial control, automotive electronics, consumer electronics, medical devices and other industries. We always adhere to genuine sources, stable supply and considerate after-sales service.

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Contact Information

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Email: info@materialparts.com
Tel / WhatsApp: +86 13760382860
Address: Room 2919, Guoli Building, Huaqiang North, Futian District, Shenzhen, Guangdong, China
 

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