TPS7A4533DCQT

Low-Dropout (LDO) Voltage Regulator

The TPS7A4533DCQT is a low-dropout (ldo) voltage regulator from Texas Instruments. View the full TPS7A4533DCQT datasheet below including electrical characteristics, absolute maximum ratings.

Manufacturer

Texas Instruments

Overview

Part: TPS7A45xx — Texas Instruments

Type: Low-Dropout (LDO) Voltage Regulator

Description: 1.5 A low-dropout (LDO) voltage regulator optimized for fast transient response, featuring 300 mV dropout voltage, 35 μVRMS low noise, and 68 dB ripple rejection at 1 kHz.

Operating Conditions:

Supply voltage: VOUT + VDO to 20 V
Operating temperature: -40 to 125 °C
Output current: up to 1.5 A

Absolute Maximum Ratings:

Max input voltage: 20 V
Max junction temperature: 150 °C
Storage temperature: -65 to 150 °C

Key Specs:

Output current: 1.5 A
Dropout voltage: 300 mV (at ILOAD = 1.5 A, 25°C)
Output voltage accuracy: 1% (at 25°C)
Low noise: 35 μVRMS (10 Hz to 100 kHz, COUT = 10 μF, ILOAD = 1.5 A)
High ripple rejection: 68 dB (at 1 kHz, ILOAD = 0.75 A)
Quiescent current: 1 mA (typical, ILOAD = 0 mA, full range)
Quiescent current in shutdown: 0.01 μA (typical, VIN = 6 V, VSHDN = 0 V, 25°C)
Current limit: 1.6 A (minimum, VIN = VOUT(NOMINAL) + 1, full range)

Features:

Optimized for Fast Transient Response
Controlled Quiescent Current in Dropout
Fixed Output Voltages: 1.5 V, 1.8 V, 2.5 V, 3.3 V
Adjustable Output from 1.21 V to 20 V (TPS7A4501 Only)
Stable With 10 μF Ceramic Output Capacitor
Reverse-Battery Protection
Reverse Current Protection

Applications:

Industrial
Wireless Infrastructure
Radio-Frequency Systems

Package:

SOT-223 (6 pins)
TO-263 (5 pins)

Features

1 · Optimized for Fast Transient Response
Output Current: 1.5 A
High Output Voltage Accuracy: 1% at 25°C
Dropout Voltage: 300 mV
Low Noise: 35 μ VRMS (10 Hz to 100 kHz)
High Ripple Rejection: 68 dB at 1 kHz
1-mA Quiescent Current
No Protection Diodes Needed
Controlled Quiescent Current in Dropout
Fixed Output Voltages: 1.5 V, 1.8 V, 2.5 V, 3.3 V
Adjustable Output from 1.21 V to 20 V (TPS7A4501 Only)
Less Than 1μ A Quiescent Current in Shutdown
Stable With 10μ F Ceramic Output Capacitor
Reverse-Battery Protection
Reverse Current Protection

Applications

Industrial
Wireless Infrastructure
Radio-Frequency Systems

Pin Configuration

DCQ Package 6-Pin SOT-223 Top View

Electrical Characteristics

Over recommended operating temperature range TJ = -40 to 125°C (unless otherwise noted) (1)

PARAMETER	PARAMETER	TEST CONDITIONS	TEST CONDITIONS	T J	MIN	TYP (2)	MAX	UNIT
V IN	Minimum input voltage (3) (4)	I LOAD = 0.5 A	I LOAD = 0.5 A	25°C		1.9		V
V IN	Minimum input voltage (3) (4)	I LOAD = 1.5 A	I LOAD = 1.5 A	Full range		2.1	2.5	V
		TPS7A4515	V IN = 2.21 V, I LOAD = 1 mA	25°C	1.485	1.5	1.515
		TPS7A4515	V IN = 2.5 V to 20 V, I LOAD = 1 mA to 1.5 A	Full range	1.447	1.5	1.545
		TPS7A4518	V IN = 2.3 V, I LOAD = 1 mA	25°C	1.782	1.8	1.818
		TPS7A4518	V IN = 2.8 V to 20 V, I LOAD = 1 mA to 1.5 A	Full range	1.737	1.8	1.854
		TPS7A4525	V IN = 3 V, I LOAD = 1 mA	25°C	2.475	2.5	2.525	V
		TPS7A4525	V IN = 3.5 V to 20 V, I LOAD = 1 mA to 1.5 A	Full range	2.412	2.5	2.575
		TPS7A4533	V IN = 3.8 V, I LOAD = 1 mA	25°C	3.266	3.3	3.333
		TPS7A4533	V IN = 4.3 V to 20 V, I LOAD = 1 mA to 1.5 A	Full range	3.2	3.3	3.4
	V ADJ pin	TPS7A4501	V IN = 2.21 V, I LOAD = 1 mA	25°C	1.197	1.21	1.222	V
	V ADJ pin	TPS7A4501	V IN = 2.5 V to 20 V, I LOAD = 1 mA to 1.5 A	Full range	1.174	1.21	1.246	V
	Line regulation	TPS7A4515	Δ V IN = 2.21 V to 20 V, I LOAD = 1 mA	Full range		2	6	mV
	Line regulation	TPS7A4518	Δ V IN = 2.3 V to 20 V, I LOAD = 1 mA	Full range		2.5	7	mV
	Line regulation	TPS7A4525	Δ V IN = 3 V to 20 V, I LOAD = 1 mA	Full range		3	10	mV
	Line regulation	TPS7A4533	Δ V IN = 3.8 V to 20 V, I LOAD = 1 mA	Full range		3.5	10	mV
	Line regulation	TPS7A4501 (3)	Δ V IN = 2.21 V to 20 V, I LOAD = 1 mA	Full range		1.5	3	mV

SLVS720F -JUNE 2008-REVISED NOVEMBER 2015

Absolute Maximum Ratings

over operating virtual-junction temperature range (unless otherwise noted) (1)

		MIN	MAX	UNIT
Input	IN	-20	20	V
Input	OUT	-20	20	V
Input	Input-to-output differential (2)	-20	20	V
Input	SENSE	-20	20	V
Input	ADJ	-7	7	V
Input	SHDN	-20	20	V
Output short-circuit duration, t short	Output short-circuit duration, t short		Indefinite
Maximum lead temperature (10-s soldering time), T lead	Maximum lead temperature (10-s soldering time), T lead		300	°C
Maximum junction temperature, T JMAX	Maximum junction temperature, T JMAX		150	°C
Storage temperature, T stg	Storage temperature, T stg	-65	150	°C

Recommended Operating Conditions

over operating free-air temperature range (unless otherwise noted)

		MIN	MAX	UNIT
V IN	Input voltage range (1)	V OUT + V DO	20	V
V IH	SHDN high-level input voltage	2	20	V
V IL	SHDN low-level input voltage		0.25	V
T J	Recommended operating junction temperature range	-40	125	°C

Thermal Information

		TPS7A45xx	TPS7A45xx
	THERMAL METRIC (1) (2)	KTT (TO-263)	DCQ (SOT-223)
		5 PINS	6 PINS
R θ JA	Junction-to-ambient thermal resistance	28.0	50.5
R θ JC(top)	Junction-to-case (top) thermal resistance	43.0	31.1
R θ JB	Junction-to-board thermal resistance	17.4	5.1
ψ JT	Junction-to-top characterization parameter	3.9	1.0
ψ JB	Junction-to-board characterization parameter	9.4	5.0
R θ JC(bot)	Junction-to-case (bottom) thermal resistance	0.3	-

Typical Application

This section highlights some design considerations for implementing this device in various applications.

Related Variants

The following components are covered by the same datasheet.

Part Number	Manufacturer	Package
TPS7A4533	Texas Instruments	—
TPS7A4533DCQR	Texas Instruments	—
TPS7A4533KTTR	Texas Instruments	—

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