Inicio > Circuitos integrados IC > MIC29302AWU-TR

MIC29302AWU-TR

3A adjustable LDO, 1.24-15V output, 450mV dropout, TO-263-5, fast transient response

7577

Inventario efectivo

Ir a la consulta

Image for reference only

Pieza del fabricante：

MIC29302AWU-TR

Paquete：

TO-263-5 (10.67 x 9.17 x 4.6 mm)

Descripción

Productos

The MIC29302AWU-TR from Microchip Technology is a 3A Fast Response Low-Dropout (LDO) Voltage Regulator in a TO-263-5 surface mount package. It features adjustable output voltage from 1.24V to 15V, 560 mV dropout at full load, and very fast transient response.

Especificaciones

Output Type	Adjustable
Output Voltage Range	1.24 V to 15 V
Max Output Current	3 A
Dropout Voltage	450 mV typ @ 3A
Input Voltage Range	3 V to 16 V
Accuracy	±2%
Ground Current	Low (typical)
Enable Pin	Yes (TTL/CMOS)
Error Flag	Yes
Temperatura de funcionamiento	-40°C to +125°C
Paquete	TO-263-5 (D2PAK)

Características

High current capability: 3A over full temperature range
Low dropout voltage of 450 mV at full load
Very fast transient response
Accurate 1% guaranteed output tolerance
Adjustable output from 1.24V to 15V via external resistors
Zero-current shutdown mode via EN pin
Error flag signals output out-of-regulation
Full protection: overcurrent, reversed input, overtemperature

Aplicaciones

Processor peripheral and I/O supplies
High-efficiency green computer systems
Automotive electronics
Battery-powered equipment
Post-regulator for switching supplies

Introducción del producto:MIC29302AWU-TR Presentación del producto

The MIC29302AWU-TR is a high-current, low-dropout voltage regulator from Microchip Technology using the proprietary Super Beta PNP process with a PNP pass element. The 3A LDO features 450 mV dropout voltage at full load and very low ground current. Designed for high-current loads, it also excels in lower current, low-dropout critical systems. The adjustable output can be set from 1.24V to 15V using two external resistors. The device includes comprehensive protection against overcurrent, reversed input, and overtemperature conditions.

Principio de funcionamiento:MIC29302AWU-TR Principio de funcionamiento

The MIC29302AWU-TR uses a PNP pass transistor in a common-emitter configuration to achieve low dropout voltage. An error amplifier compares a fraction of the output voltage (set by external feedback resistors) with an internal 1.24V bandgap reference, and drives the PNP pass element to maintain regulation. The EN pin enables TTL/CMOS-controlled shutdown, reducing supply current to near zero. The error flag output becomes active when the output drops out of regulation. Current limiting and thermal shutdown provide fault protection. The Super Beta PNP process minimizes base current, resulting in very low ground current.

Descripción de la clavija:MIC29302AWU-TR Definición y funciones de las clavijas

Pin	Nombre	Tipo	Función
1	ES	Entrada	Enable input (active high, TTL/CMOS compatible)
2	EN	Potencia	Unregulated input voltage (3-16V)
3	GND	Suelo	Ground / Tab
4	OUT	Salida	Regulated output voltage
5	ADJ	Entrada	Feedback adjustment pin for output voltage set

Application Scenarios:In which products and applications isMIC29302AWU-TR usado

Processor and FPGA I/O power supplies
High-efficiency green computer systems
Automotive ECU power regulation
Post-regulation after switching converters
Battery-powered portable equipment

Alternative Models:What chips are recommended as replacements for MIC29302AWU-TR

Fabricante	Número de pieza	Paquete	Notas
Microchip	MIC29302AWD-TR	TO-252-5	Smaller DPAK package
Microchip	MIC29150-3.3WT	TO-263-3	Fixed 3.3V, 1.5A version
Texas Instruments	LM1085IT-ADJ	TO-263-3	3A adjustable LDO alternative
Infineon	TLE4274	TO-263-5	Automotive 200mA LDO