Microchip MIC23031 Manual

Microchip Ikke kategoriseret MIC23031

Læs gratis den danske manual til Microchip MIC23031 (26 sider) i kategorien Ikke kategoriseret. Denne vejledning er vurderet som hjælpsom af 13 personer og har en gennemsnitlig bedømmelse på 4.9 stjerner ud af 7 anmeldelser. Har du et spørgsmål om Microchip MIC23031, eller vil du spørge andre brugere om produktet?

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 2021 Microchip Technology Inc. DS20006538A-page 1

MIC23031

Features

• Input Voltage: 2.7V to 5.5V

• 400 mA Output Current

• Up to 93% Efficiency and 88% at 1 mA

• 21 µA Typical Quiescent Current

• 4 MHz PWM Operation in Continuous Mode

• Ultra-Fast Transient Response

• Low Voltage Output Ripple

- 20 mVPP Ripple in HyperLight Load® Mode

- 3 mV Output Voltage Ripple in Full PWM

Mode

• 0.01 µA Shutdown Current

• MIC23031 Fixed and Adjustable Output Voltage

Options Available

• 1.6 mm x 1.6 mm 6-Lead TDFN Package

• –40°C to +125°C Junction Temperature Range

Applications

• Mobile Handsets

• Portable Media/MP3 Players

• Portable Navigation Devices (GPS)

• WiFi/WiMax/WiBro Modules

• Digital Cameras

• Wireless LAN Cards

• USB-Powered Devices

• Portable Applications

General Description

The MIC23031 is a high-efficiency, 4 MHz, 400 mA

synchronous buck regulator with HyperLight Load®

mode. HyperLight Load provides very high efficiency at

light loads and ultra-fast transient response that is

perfectly suited for supplying processor core voltages.

An additional benefit of this proprietary architecture is

the very low output ripple voltage throughout the entire

load range with the use of small output capacitors. The

tiny 1.6 mm x 1.6 mm TDFN package saves precious

board space and requires only three external

components.

The MIC23031 is designed for use with a very small

inductor, down to 0.47 µH, and an output capacitor as

small as 2.2 µF that enables a sub 1 mm height.

The MIC23031 has a very low quiescent current of

21 µA and achieves as high as 88% efficiency at 1 mA.

At higher loads, the MIC23031 provides a constant

switching frequency around 4 MHz while achieving

peak efficiencies up to 93%.

The MIC23031 is available in a 6-pin 1.6 mm x 1.6 mm

TDFN package with an operating junction temperature

range of –40°C to +125°C.

Typical Application Circuit

Efficiency VOUT = 2.5V

4 MHz PWM 400 mA Buck Regulator with HyperLight Load®

MIC23031

DS20006538A-page 2  2021 Microchip Technology Inc.

Package Types

Functional Block Diagrams

MIC23031, Fixed

6-Lead TDFN (MT)

(Top View)

1VIN

PGN

AGND

3 4

1VIN

GND

3 4

MIC23031, Adjustable

6-Lead TDFN (MT)

(Top View)

MIC23031 Fixed Output

MIC23031 Adjustable Output

VIN

GND

UVLO

Reference

ISENSE

Gate

Drive

ERROR

COMPARATOR

CONTROL

LOGIC

Tim er &

Softstart

ZERO 1

Current

Limit

VIN

PGN

SNS

AGND

UVLO

Reference

ISENSE

Gate

Drive

ERROR

COMPARATOR

CONTROL

LOGIC

Tim er &

Softstart

ZERO 1

Current

Limit

Produkt Specifikationer

Mærke:	Microchip
Kategori:	Ikke kategoriseret
Model:	MIC23031

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