MIC2288YMLTR Micrel Semiconductor, MIC2288YMLTR Datasheet

MIC2288YMLTR

Manufacturer Part Number

MIC2288YMLTR

Description

Manufacturer

Micrel Semiconductor

Datasheet

1.MIC2288YMLTR.pdf (11 pages)

Specifications of MIC2288YMLTR

Date_code

05+

Packing_info

22D-08L

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General Description

The MIC2288 is a 1.2MHz PWM, DC/DC boost switching

regulator available in low-profile Thin SOT-23 and

2mm × 2mm MLF™ package options. High power density is

achieved with the MIC2288’s internal 34V/1A switch, allow-

ing it to power large loads in a tiny footprint.

The MIC2288 implements a constant frequency, 1.2MHz

PWM, current mode control scheme with internal compensa-

tion that offers excellent transient response and output regu-

lation performance. The high frequency operation saves

board space by allowing small, low-profile, external compo-

nents. The fixed frequency PWM topology also reduces

spurious switching noise and ripple to the input power source.

The MIC2288 is available in a low-profile Thin SOT-23-5

package and a 2mm × 2mm MLF™-8 leadless package. The

2mm × 2mm MLF™-8 package option has an output over-

voltage protection feature.

The MIC2288 has a junction temperature range of –40°C to

+125°C.

All support documentation can be found on Micrel’s web

site at www.micrel.com.

Typical Application

MLF and MicroLeadFrame are trademarks of Amkor Technology, Inc.

April 2005

MIC2288

Micrel, Inc. • 2180 Fortune Drive • San Jose, CA 95131 • USA • tel + 1 (408) 944-0800 • fax + 1 (408) 474-1000 • http://www.micrel.com

1-Cell

Li Ion

2mm × × × × × 2mm MLF™ Boost Regulator

2.2µF

MIC2288BD5

VIN

10µH

GND

10µF

15V

OUT

Features

• 2.5V to 10V input voltage range

• Output voltage adjustable to 34V

• Over 1A switch current

• 1.2MHz PWM operation

• Stable with ceramic capacitors

• High-efficiency

• <1% line and load regulation

• Low input and output ripple

• <1µA shutdown current

• UVLO

• Output overvoltage protection (MIC2288BML)

• Over temperature shutdown

• Thin SOT-23-5 package option

• 2mm × 2mm leadless MLF™-8 package option

• –40°C to +125°C junction temperature range

Applications

• Organic EL power supply

• TFT-LCD bias supply

• 12V supply for DSL applications

• Multi-output DC/DC converters

• Positive and negative output regulators

• SEPIC converters

1.2MHz PWM Boost Converter in

Thin SOT-23 and 2× × × × × 2 MLF™

MIC2288

15V

0.05

= 3.2V

OUT

LOAD (A)

0.1

Efficiency

0.15

= 3.6V

= 4.2V

0.2

M9999-042205

Micrel, Inc.

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