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Linear Voltage Regulator IC Positive Fixed 1 Output 300mA SOT-23-5

TLV73318PQDBVRQ1 General Description

The TLV733P-Q1 family of low dropout (LDO) linear regulators are ultra-small, low quiescent current LDOs that can source 300 mA with good line and load transient performance. These devices provide a typical accuracy of 1%.

The TLV733P-Q1 family is designed with a modern capacitor-free architecture to ensure stability without an input or output capacitor. The removal of the output capacitor allows for a very small solution size, and can eliminate inrush current at startup. Furthermore, the TLV733P-Q1 family is also stable with ceramic output capacitors if an output capacitor is necessary. The TLV733P-Q1 family also provides foldback current control during device power-up and enabling if an output capacitor is used. This functionality is especially important in battery-operated devices.

The TLV733P-Q1 family provides an active pulldown circuit to quickly discharge output loads when disabled.

The TLV733P-Q1 family is available in the 6-pin DRV (WSON) and 5-pin DBV (SOT-23) packages.

Key Features

  • AEC-Q100 qualified for automotive applications:
    • Temperature grade 1: –40°C to 125°C, TA
  • Device junction temperature range: –40°C to 150°C
  • Input voltage range: 1.4 V to 5.5 V
  • Stable operation with or without capacitors
  • Foldback overcurrent protection
  • Package:
    • 2.0-mm × 2.0-mm WSON-6
    • 2.9-mm × 1.6-mm SOT-23
  • Very low dropout: 125 mV at 300 mA (3.3 VOUT)
  • Accuracy: 1% typical, 1.4% maximum
  • Low IQ: 34 µA
  • Available in fixed-output voltages: 1.0 V to 3.3 V
  • High PSRR: 50 dB at 1 kHz
  • Active output discharge


Output options Fixed Output Iout (max) (A) 0.3
Vin (max) (V) 5.5 Vin (min) (V) 1.4
Vout (max) (V) 3.3 Vout (min) (V) 1
Fixed output options (V) 1, 1.1, 1.2, 1.5, 1.8, 2.5, 2.8, 3, 3.3 Noise (µVrms) 120
Iq (typ) (mA) 0.034 Thermal resistance θJA (°C/W) 93
TI functional safety category Functional Safety-Capable Rating Automotive
Load capacitance (min) (µF) 0 Regulated outputs (#) 1
Features Enable, Foldback Overcurrent protection Accuracy (%) 1.4
PSRR at 100 KHz (dB) 28 Dropout voltage (Vdo) (typ) (mV) 125
Operating temperature range (°C) -40 to 125, -40 to 150 Pin Count 5
Released Date Dec 11, 2019 Last Modified Date Mar 7, 2023 4:10 PM UTC
Package/Case SOT23-5

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Ratings and Reviews

L**n 05/20/2023

Delivery is long-but reliable. all ok!



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