MIC47053 Series

500mA Adjustable Micropower ULDO, Linear Regulator with Power Good

Catalog

500mA Adjustable Micropower ULDO, Linear Regulator with Power Good

Part	Control Features	Operating Temperature [Max]	Operating Temperature [Min]	PSRR [Min]	PSRR [Max]	Protection Features	Output Configuration	Mounting Type	Output Type	Package / Case	Number of Regulators	Supplier Device Package	Voltage - Output (Min/Fixed)	Voltage Dropout (Max) [Max]	Voltage - Output (Max) [Max]	Current - Output	Voltage - Input (Max) [Max]	Current - Quiescent (Iq)
Microchip Technology MIC47053YMT-TR	Enable Power Good	125 °C	-40 °C	35 dB	47 dB	Over Temperature Under Voltage Lockout (UVLO)	Positive	Surface Mount	Adjustable	8-UFDFN Exposed Pad	1	8-TDFN (2x2)	0.4 V	0.12 V	3.4 V	500 mA	3.6 V	15 µA

Catalog

500mA Adjustable Micropower ULDO, Linear Regulator with Power Good

Key Features

• * Input voltage range: 1.0V to 3.6V

• * Stable with 1µF ceramic output capacitor

• * Low dropout voltage: 49mV at 500mA

• * ±2% initial output voltage accuracy over temperature

• * Bias supply voltage range: 2.3V to 5.5V

• * Adjustable output voltage range down to 0.4V

• * Logic-level enable input

• * UVLO on both supply voltages

• * High bandwidth - very fast transient response

• * Low shutdown current: 0.1µA typical

• * Thermally enhanced 2mm x 2mm Thin DFN package

• * Junction temperature range of -40°C to +125°C

Description

The MIC47053 is a high-speed, adjustable output ultra-low dropout, dual NMOS ULDO™ designed to power point-of-load applications that require a low-voltage, high-current power supply. The MIC47053 can source 500mA of output current while only requiring a 1µF ceramic output capacitor for stability. The MIC47053 offers ±2% output voltage accuracy over temperature, low dropout voltage (49mV @ 500mA), and low ground current which makes this device ideally suited for mobile and point-of-load applications. The MIC47053 has an NMOS output stage offering very low output impedance. The NMOS output stage makes for a unique ability to respond very quickly to sudden load changes such as that required by a microprocessor, DSP, or FPGA. The MIC47053 consumes little quiescent current and therefore can be used for driving the core voltages of mobile processors and post regulating a core DC/DC converter in any processor. The MIC47053 is available in the tiny 2mm x 2mm Thin DFN packages with an operating junction temperature range of -40°C to +125°C.