TPS73218 Series

250mA high-accuracy, ultra-low-dropout voltage regulator with reverse current protection and enable

Link to Manufacturer Page: https://www.ti.com/

Catalog

250mA high-accuracy, ultra-low-dropout voltage regulator with reverse current protection and enable

Part	Output Type	Control Features	Number of Regulators	Voltage - Output (Min/Fixed)	Voltage Dropout (Max) [Max]	PSRR [Max]	PSRR [Min]	Current - Output	Voltage - Input (Max) [Max]	Protection Features	Package / Case	Output Configuration	Current - Supply (Max) [Max]	Mounting Type	Operating Temperature [Max]	Operating Temperature [Min]	Current - Quiescent (Iq)	Supplier Device Package
Texas Instruments TPS73218DCQR	27.03 °C/W	Enable	1	1.8 V	0.15 V	58 dB	37 dB	250 mA	5.5 V	Over Current, Over Temperature, Reverse Polarity, Short Circuit	SOT-223-6	Positive	950 µA	Surface Mount	125 °C	-40 °C	550 µA	SOT-223-6
Texas Instruments TPS73218DBVT	27.03 °C/W	Enable	1	1.8 V	0.15 V	58 dB	37 dB	250 mA	5.5 V	Over Current, Over Temperature, Reverse Polarity, Short Circuit	SC-74A, SOT-753	Positive	950 µA	Surface Mount	125 °C	-40 °C	550 µA	SOT-23-5
Texas Instruments TPS73218DBVRG4	27.03 °C/W	Enable	1	1.8 V	0.15 V	58 dB	37 dB	250 mA	5.5 V	Over Current, Over Temperature, Reverse Polarity, Short Circuit	SC-74A, SOT-753	Positive	950 µA	Surface Mount	125 °C	-40 °C	550 µA	SOT-23-5
Texas Instruments TPS73218MDBVREP	27.03 °C/W	Enable	1	1.8 V	0.15 V	58 dB	37 dB	250 mA	5.5 V	Over Current, Over Temperature, Reverse Polarity, Short Circuit	SC-74A, SOT-753	Positive	950 µA	Surface Mount	125 °C	-55 °C	550 µA	SOT-23-5
Texas Instruments TPS73218DCQ	27.03 °C/W	Enable	1	1.8 V	0.15 V	58 dB	37 dB	250 mA	5.5 V	Over Current, Over Temperature, Reverse Polarity, Short Circuit	SOT-223-6	Positive	950 µA	Surface Mount	125 °C	-40 °C	550 µA	SOT-223-6
Texas Instruments TPS73218DBVR	27.03 °C/W	Enable	1	1.8 V	0.15 V	58 dB	37 dB	250 mA	5.5 V	Over Current, Over Temperature, Reverse Polarity, Short Circuit	SC-74A, SOT-753	Positive	950 µA	Surface Mount	125 °C	-40 °C	550 µA	SOT-23-5

Key Features

• Stable with no output capacitor or any value or type of capacitorInput voltage range: 1.7V to 5.5VUltra-low dropout voltage: 40mV typical at 250mAExcellent load transient response—with or without optional output capacitorNMOS topology provides low reverse leakage currentLow noise: 30µVRMS typical (10kHz to 100kHz)0.5% initial accuracy1% overall accuracy (line, load, and temperature)Less than 1µA maximum IQ in shutdown modeThermal shutdown and specified min and max current limit protectionAvailable in multiple output voltage versions:Fixed outputs of 1.2V to 5VAdjustable outputs from 1.2V to 5.5VCustom outputs availableStable with no output capacitor or any value or type of capacitorInput voltage range: 1.7V to 5.5VUltra-low dropout voltage: 40mV typical at 250mAExcellent load transient response—with or without optional output capacitorNMOS topology provides low reverse leakage currentLow noise: 30µVRMS typical (10kHz to 100kHz)0.5% initial accuracy1% overall accuracy (line, load, and temperature)Less than 1µA maximum IQ in shutdown modeThermal shutdown and specified min and max current limit protectionAvailable in multiple output voltage versions:Fixed outputs of 1.2V to 5VAdjustable outputs from 1.2V to 5.5VCustom outputs available

Description

The TPS732 low-dropout (LDO) voltage regulator uses an NMOS pass transistor in a voltage-follower configuration. This topology is stable using output capacitors with low equivalent series resistance (ESR), and even allows operation without a capacitor. The device also provides high reverse blockage (low reverse current) and ground pin current that is nearly constant over all values of output current. The TPS732 uses an advanced BiCMOS process to yield high precision while delivering very low dropout voltages and low ground pin current. Current consumption, when not enabled, is less than 1µA and designed for portable applications. The extremely low output noise (30µVRMS with 0.1µF CNR) is designed for powering VCOs. This device is protected by thermal shutdown and foldback current limit. The TPS732 low-dropout (LDO) voltage regulator uses an NMOS pass transistor in a voltage-follower configuration. This topology is stable using output capacitors with low equivalent series resistance (ESR), and even allows operation without a capacitor. The device also provides high reverse blockage (low reverse current) and ground pin current that is nearly constant over all values of output current. The TPS732 uses an advanced BiCMOS process to yield high precision while delivering very low dropout voltages and low ground pin current. Current consumption, when not enabled, is less than 1µA and designed for portable applications. The extremely low output noise (30µVRMS with 0.1µF CNR) is designed for powering VCOs. This device is protected by thermal shutdown and foldback current limit.