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As consumers demand more functionality from their portable devices, increasing battery life becomes critical in applications like PDAs, Portable media players and GPS devices. Micrel's solutions for these applications includes a broad range of low noise regulators (LNRs), switching regulators, supervisory ICs, and battery management ICs optimized for operation in portable electronics.

Click on a product family below to see our recommended product solutions and applications notes or click on Full List to see all products we offer for this application.

 		 
 
 
 
 
   
   
 
Types of Applications
  - PDAs  
  - Portable Media Players  
  - GPS Devices  
  - Flashlights  
 
 
 

USB and General-Purpose Power Switch Selection Guide

 

Current Limit : Fixed -- Automatic Fault Recovery

Device

 Outputs

 Operating Voltage

 Current Limit

 RDS(ON)

 Application

 UL
Listed

 Package
min

 max

 A (min)

 A (typ)

 A (max)

 max ( @ 5V )

 Gen P.

 USB

 ACPI

MIC2025-1

1

2.7V

5.5V

0.5

 

_

140mOhm

X

X

 

X

SOP-8
MSOP-8

MIC2025-2

1

2.7V

5.5V

0.5

 

_

140mOhm

X

X

 

X

SOP-8
MSOP-8

MIC2026-1

2

2.7V

5.5V

0.5

 

_

140mOhm

X

X

 

X

SOP-8
DIP-8

MIC2026-2

2

2.7V

5.5V

0.5

 

_

140mOhm

X

X

 

X

SOP8-
DIP-8

MIC2027-1

4

2.7V

5.5V

0.5

 

_

150mOhm

X

X

 

X

SOP-16

MIC2027-2

4

2.7V

5.5V

0.5

 

_

150mOhm

X

X

 

X

SOP-16

MIC2505

1

2.7V

7.5V

2.0

 

_

50mOhm

X

X

 

 

SOP-8
DIP-8

MIC2505-1

1

2.7V

7.5V

2.0

 

_

50mOhm

X

X

 

 

SOP-8
DIP-8

MIC2505-2

1

2.7V

7.5V

2.0

 

_

50mOhm

X

X

 

 

SOP-8
DIP-8

MIC2506

2

2.7V

7.5V

1.0

 

_

125mOhm

X

X

 

 

SOP-8
DIP-8

MIC2514

1

3.0V

13.5V

1.0

 

_

2.4Ohm

X

 

 

 

SOT-23-5

MIC2536-1

2

2.7V

5.5V

0.15

 

_

700mOhm

X

X

 

X

SOP-8
MSOP-8

MIC2536-2

2

2.7V

5.5V

0.15

 

_

700mOhm

X

X

 

X

SOP-8
MSOP-8

MIC2537-1

4

2.7V

5.5V

0.15

 

_

700mOhm

X

X

 

X

SOP-16

MIC2537-2

4

2.7V

5.5V

0.15

 

_

700mOhm

X

X

 

X

SOP-16

 

Current Limit : Fixed -- Latching / Circuit Breaker

Device

 Outputs

 Operating Voltage

 Current Limit

 RDS(ON)

 Application

 UL
Listed

 Package
min

 max

 A (min)

 A (typ)

 A (max)

 max ( @ 5V )

 Gen P.

 USB

 ACPI

MIC2012

2

4.5V

5.5V

0.5 / 0.1

 

_

140mOhm

X

X

X

X

SOP-8

MIC2012-1

2

4.5V

5.5V

0.5 / 0.1

 

_

140mOhm

X

X

X

X

QSOP-16

MIC2012-2

2

4.5V

5.5V

0.5 / 0.1

 

_

140mOhm

X

X

X

X

QSOP-16

MIC2072

2

4.5V

5.5V

0.5 / 0.1

 

_

140mOhm

X

X

X

X

SOP-8

MIC2072-1

2

4.5V

5.5V

0.5 / 0.1

 

_

140mOhm

X

X

X

X

QSOP-16

MIC2072-2

2

4.5V

5.5V

0.5 / 0.1

 

_

140mOhm

X

X

X

X

QSOP-16

MIC2075-1

1

2.7V

5.5V

0.5

 

_

140mOhm

X

X

 

X

SOP-8
MSOP-8

MIC2075-2

1

2.7V

5.5V

0.5

 

_

140mOhm

X

X

 

X

SOP-8
MSOP-8

MIC2076-1

2

2.7V

5.5V

0.5

 

_

140mOhm

X

X

 

X

SOP-8
DIP-8

MIC2076-2

2

2.7V

5.5V

0.5

 

_

140mOhm

X

X

 

X

SOP8-
DIP-8

MIC2077-1

4

2.7V

5.5V

0.5

 

_

150mOhm

X

X

 

X

SOP-16

MIC2077-2

4

2.7V

5.5V

0.5

 

_

150mOhm

X

X

 

X

SOP-16

 

Current Limit : Adjustable -- Automatic Fault Recovery

Device

Outputs

Operating Voltage

Current Limit

RDS(ON)

Application

UL
Listed

Package

min

max

A (min)

A (typ)

A (max)

max ( @ 5V )

Gen P.

USB

ACPI

MIC2010-1

2

4.5V

5.5V

0.05

 

0.3

140mOhm

X

X

X

X

QSOP-16

MIC2010-2

2

4.5V

5.5V

0.05

 

0.3

140mOhm

X

X

X

X

QSOP-16

MIC2040-1

1

0.8

5.5

0.25

 

1.5

100mOhm

X

 

 

Pend.

MSOP-10

MIC2040-2

1

0.8

5.5

0.25

 

1.5

100mOhm

X

 

 

Pend.

MSOP-10

MIC2042-1

1

0.8

5.5

0.5

 

3

50mOhm

X

 

 

Pend.

SOP-8
TSSOP-14

MIC2042-2

1

0.8

5.5

0.5

 

3

50mOhm

X

 

 

Pend.

SOP-8
TSSOP-14

MIC2044-1

1

0.8

5.5

1

 

6

25mOhm

X

 

 

Pend.

TSSOP-16

MIC2044-2

1

0.8

5.5

1

 

6

25mOhm

X

 

 

Pend.

TSSOP-16

MIC2544-1

1

2.7V

5.5V

0.1

 

1.5

120mOhm

X

X

X

X

SOP-8
MSOP-8

MIC2544-2

1

2.7V

5.5V

0.1

 

1.5

120mOhm

X

X

X

X

SOP-8
MSOP-8

MIC2545A-1

1

2.7V

5.5V

0.5

 

3.0

50mOhm

X

X

X

X

SOP-8
DIP-8
TSSOP-14

MIC2545A-2

1

2.7V

5.5V

0.5

 

3.0

50mOhm

X

X

X

X

SOP-8
DIP-8
TSSOP-14

MIC2546-1

2

2.7V

5.5V

0.1

 

1.5

120mOhm

X

X

X

X

SOP-16
TSSOP-16

MIC2546-2

2

2.7V

5.5V

0.1

 

1.5

120mOhm

X

X

X

X

SOP-16
TSSOP-16

 

Current Limit : Adjustable -- Latching (Circuit Breaker)

Device

 Outputs

 Operating Voltage

 Current Limit

 RDS(ON)

 Application

 UL
Listed

 Package
min

 max

 A (min)

 A (typ)

 A (max)

 max ( @ 5V )

 Gen P.

 USB

 ACPI

MIC2041-1

1

0.8

5.5

0.25

 

1.5

100mOhm

X

 

 

Pend.

MSOP-10

MIC2041-2

1

0.8

5.5

0.25

 

1.5

100mOhm

X

 

 

Pend.

MSOP-10

MIC2043-1

1

0.8

5.5

0.5

 

3

50mOhm

X

 

 

Pend.

SOP-8
TSSOP-14

MIC2043-2

1

0.8

5.5

0.5

 

3

50mOhm

X

 

 

Pend.

SOP-8
TSSOP-14

MIC2045-1

1

0.8

5.5

1

 

6

25mOhm

X

 

 

Pend.

TSSOP-16

MIC2045-2

1

0.8

5.5

1

 

6

25mOhm

X

 

 

Pend.

TSSOP-16

MIC2070-1

2

4.5V

5.5V

0.05

 

0.3

140mOhm

X

X

X

X

QSOP-16

MIC2070-2

2

4.5V

5.5V

0.05

 

0.3

140mOhm

X

X

X

X

QSOP-16

MIC2547-1

2

2.7V

5.5V

0.1

 

1.5

120mOhm

X

X

X

X

SOP-16
TSSOP-16

MIC2547-2

2

2.7V

5.5V

0.1

 

1.5

120mOhm

X

X

X

X

SOP-16
TSSOP-16

MIC2548-1

1

2.7V

5.5V

0.1

 

1.5

120mOhm

X

X

X

X

SOP-8
MSOP-8

MIC2548-2

1

2.7V

5.5V

0.1

 

1.5

120mOhm

X

X

X

X

SOP-8
MSOP-8

MIC2549A-1

1

2.7V

5.5V

0.5

 

3.0

50mOhm

X

X

X

X

SOP-8
DIP-8
TSSOP-14

MIC2549A-2

1

2.7V

5.5V

0.5

 

3.0

50mOhm

X

X

X

X

SOP-8
DIP-8
TSSOP-14

 

Application Hints and Notes

Application Hint 30

MIC2527 Voltage Drop, Packaging, and PCB Layout

Application Note 17

Universal Serial Bus Power Management

Application Note 32

Dual Current-Limiting Switch for USB Applications


LED Driver Data Sheets

Data Sheet

Product Page

Description

Inventory

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2mm x 2mm White LED Driver with Internal Schottky Diode & OVP

 

MIC2291

1.2A PWM Boost Regulator Photo Flash LED Driver

 

MIC2292
MIC2293

High Frequency PWM White LED Drivers with Internal Schottky Diode and OVP

 

MIC2142

Micropower Boost Converter

 

MIC2145

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MIC4682

Precision Current Limit SO-8 SuperSwitcher? Buck Regulator

 

 
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