EmbeddedRelated.com
    Parts    TLV70018DDCR
TLV70018DDCR

TITLV70018DDCR

Texas Instruments
Linear Voltage Regulator IC Positive Fixed 1 Output 200mA SOT-23-THIN
Active9,819 in stock
Datasheet Digi-Key Compare Prices

Overview

The TLV70018DDCR is a low-quiescent-current, low-dropout (LDO) linear regulator that provides a fixed 1.8V output from an input range of 2V to 5.5V. It is designed to support up to 200mA of load current while maintaining high power-supply rejection ratio (PSRR) and excellent line and load transient response. This regulator is housed in a compact 5-pin thin SOT-23 package, making it suitable for space-constrained power management designs.

Why Choose This Part

This regulator features a low quiescent current of 31uA that remains relatively constant over the entire output current range, which is critical for battery longevity. It provides integrated safety features including thermal shutdown, overcurrent protection, and reverse polarity protection. The high 68dB PSRR ensures that noise from upstream switching regulators is effectively filtered out of the 1.8V rail.

Applications

Handheld Electronics
Providing regulated 1.8V rails for digital logic in smartphones and tablets where space is limited.
Wireless Sensor Nodes
Efficient power regulation for low-power RF modules and microcontrollers that require a stable supply with low standby current.
Precision Analog Supplies
Utilizing the 68dB PSRR at 1kHz to provide clean power to sensitive analog-to-digital converters and sensors.
Battery-Powered Instrumentation
Extending battery life in portable tools through a low 31uA typical ground current.

Key Specifications

PSRR 68dB (1kHz)
Output Type Fixed
Mounting Type Surface Mount
Package / Case SOT-23-5 Thin, TSOT-23-5
Control Features Enable
Current - Output 200mA
Protection Features Over Current, Over Temperature, Reverse Polarity, Under Voltage Lockout (UVLO)
Number of Regulators 1
Output Configuration Positive
Operating Temperature -40degC ~ 125degC (TJ)
Voltage - Input (Max) 5.5V
Voltage Dropout (Max) 0.25V @ 200mA
Current - Supply (Max) 270 uA
Supplier Device Package SOT-23-THIN
Current - Quiescent (Iq) 55 uA
Voltage - Output (Min/Fixed) 1.8V

Getting Started

When designing with the TLV70018DDCR, place a 0.1uF or larger ceramic capacitor at both the input and output pins as close to the device as possible to ensure stability and transient performance. Use the Enable (EN) pin to manage power sequencing or to enter a low-power shutdown mode where current consumption drops to 1uA. Ensure the PCB thermal pad or ground pins have sufficient copper area to manage heat dissipation when operating near the 200mA limit at high input-to-output voltage differentials.

TLV70018 Family

Part NumberDifferenceStock
TLV70018DBVR BVR —

Also Consider

AP7331-18WG-7 DIODiodes Incorporated - A 300mA alternative that supports a wider input voltage range up to 6V.