MIC2876 datasheet(1/26 Pages) MICROCHIP

部件名	MIC2876

功能描述	4.8A ISW, Synchronous Boost Regulator with Bi-Directional Load Disconnect

PDF	26 Pages

Scroll/Zoom	100%

制造商	MICROCHIP [Microchip Technology]

网页	http://www.microchip.com

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1 / 26 page

 2016 Microchip Technology Inc.

DS20005572A-page 1

MIC2876

Features

• Up to 95% Efficiency

• Input Voltage Range from 2.5V to 5.5V

• Fully Integrated, High-Efficiency, 2 MHz

Synchronous Boost Regulator

• Bi-Directional True Load Disconnect

• Integrated Anti-Ringing Switch

• <1 µA Shutdown Current

• Bypass Mode for VIN ≥ VOUT

• Overcurrent Protection and Thermal Shutdown

• Fixed and Adjustable Output Versions

• 8-pin 2 mm × 2 mm UDFN package

Applications

• Tablets and Smartphones

• USB OTG and HDMI Hosts

• Portable Power Reserve Supplies

• High-Current Parallel Lithium Cell Applications

• Portable Equipment

General Description

The MIC2876 is a compact and highly efficient 2 MHz

synchronous boost regulator with a 4.8A switch. It

features a bi-directional load disconnect function that

prevents any leakage current between the input and

output when the device is disabled. The MIC2876

operates in bypass mode automatically when the input

voltage is greater than the target output voltage. At light

loads, the boost converter goes to the PFM mode to

improve the efficiency.

The MIC2876 also features an integrated anti-ringing

switch to minimize EMI.

The MIC2876 is available in a 8-pin 2 mm × 2 mm

UDFN package, with a junction temperature range of

–40°C to +125°C.

Package Types

MIC2876 (FIXED OUTPUT)

8-Pin 2x2 UDFN* (MT)

(Top View)

MIC2876 (ADJ. OUTPUT)

8-Pin 2x2 UDFN* (MT)

(Top View)

SW

PGND

IN

AGND

OUT

/PG

EN

OUTS

EP

1

2

3

45

6

7

8

SW

PGND

IN

AGND

OUT

/PG

EN

FB

EP

1

2

3

45

6

7

8

* Includes Exposed Thermal Pad (EP), see Table 3-1.

4.8A ISW, Synchronous Boost Regulator

with Bi-Directional Load Disconnect

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