mic94071ymt Micrel Semiconductor, mic94071ymt Datasheet

mic94071ymt

Manufacturer Part Number

mic94071ymt

Description

High Side Power Switches

Manufacturer

Micrel Semiconductor

Datasheet

1.MIC94071YMT.pdf (11 pages)

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General Description

The MIC94070-73 are high-side load switches designed

for operation between 1.7V to 5.5V. The devices contain

a low on-resistance P-channel MOSFET that supports

1.2A of continuous current. The MIC94071 and

MIC94073 feature an active load discharge circuit which

insures capacitive loads retain no charge when the main

switch is in an OFF state.

MIC94070-71 feature rapid turn on while MIC94072-73

provide a slew rate controlled Soft-Start turn-on of 800µs

(typical) to prevent in-rush current from glitching supply

rails.

An active pull-down on the enable input keeps

MIC94070-73 in a default OFF state until the EN pin is

pulled to a high level. Built-in level shift circuitry allows

low voltage logic signals to switch higher supply

voltages, or vice versa; high level logic signals can

control low level voltages.

MIC94070-73’s operating voltage range makes them

suitable for 1-cell Lithium ion and 2- to 3-cell

NiMH/NiCad/Alkaline powered systems, as well as all 5V

applications. Their low operating current of 2µA and low

shutdown current of <1µA maximize battery life.

Data sheets and support documentation can be found on

Micrel’s web site at: www.micrel.com.

________________________________________________________________________________________________________

Typical Application

MLF and MicroLeadFrame are registered trademarks of Amkor Technologies, Inc.

September 2007

Micrel Inc. • 2180 Fortune Drive • San Jose, CA 95131 • USA • tel +1 (

Load Switch Application

MIC94070, 72

408

Features

• 1.7V to 5.5V input voltage range

• 1.2A continuous operating current

• 3A pulse current

• 120mΩ R

• Built-in level shift for control logic; can be operated by

• Low 2µA quiescent current

• Soft-Start: MIC94072/73

• Micro-power shutdown <1µA

• Load discharge circuit: MIC94071, MIC94073

• Space saving 1.2mm × 1.6mm Thin MLF

Applications

• Load switch in portable applications:

• Battery switch-over circuits

• Level translator

) 944-0800 • fax + 1 (408) 474-1000 • http://www.micrel.com

1.5V logic.

Load Switch with Capacitive Load Discharge

Cellular phones

PDAs

MP3 players

Digital Cameras

Portable instrumentation

MIC94070/71/72/73

High Side Power Switches

DSON

(typical)

MIC94071, 73

M9999-090507

package

Related parts for mic94071ymt

mic94071ymt Summary of contents

Page 1

General Description The MIC94070-73 are high-side load switches designed for operation between 1.7V to 5.5V. The devices contain a low on-resistance P-channel MOSFET that supports 1.2A of continuous current. The MIC94071 and MIC94073 feature an active load discharge circuit which ...

Page 2

... Ordering Information Part Number Standard Pb-Free Standard — MIC94070YC6 — MIC94071YC6 — MIC94072YC6 — MIC94073YC6 — MIC94070YMT — MIC94071YMT — MIC94072YMT — MIC94073YMT Notes 1. Under-bar symbol on SC-70 Pb-free packages may not be to scale. Pin Configuration SC-70-6 (C6) Pin Description Pin Number Pin Name SC-70 MLF 1 ...

Page 3

Micrel, Inc. Absolute Maximum Ratings Input Voltage (V )................................................ +6V IN Enable Voltage (V ) .......................................... +6V EN (3) Continuous Drain Current ( ® 25°C (MLF ) ....................................... ±1. 25°C (SC-70) ...................................... ±1.2A ...

Page 4

Micrel, Inc. Electrical Characteristics (Dynamic 5V 25°C, bold values indicate –40°C< Symbol Parameter t Turn-On Delay Time ON_DLY t Turn-On Rise Time ON_RISE t Turn-Off Delay Time OFF_DLY t Turn-Off Fall Time OFF_FALL ...

Page 5

Micrel, Inc. Typical Characteristics September 2007 5 MIC94070/71/72/73 M9999-090507 ...

Page 6

Micrel, Inc. Functional Characteristics MIC94070 September 2007 6 MIC94070/71/72/73 M9999-090507 ...

Page 7

Micrel, Inc. MIC94071 September 2007 7 MIC94070/71/72/73 M9999-090507 ...

Page 8

Micrel, Inc. MIC94072 September 2007 8 MIC94070/71/72/73 M9999-090507 ...

Page 9

Micrel, Inc. MIC94073 September 2007 9 MIC94070/71/72/73 M9999-090507 ...

Page 10

Micrel, Inc. Package Information September 2007 6-Pin SC-70 (C6) ® 4-Pin Thin MLF (MT) 10 MIC94070/71/72/73 M9999-090507 ...

Page 11

Micrel, Inc. Recommended Land Pattern for MLF 1.2x1.6 4 Lead Optional for maximum thermal performance. Heatsink should be connected to GND plane of PCB for maximum thermal performance. Disclaimer: This is only a recommendation based on information available to Micrel ...

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