MIC29710 View Datasheet(PDF) - Micrel

Part Name

Description

Manufacturer

MIC29710

7.5A Fast-Response LDO Regulator

Micrel 

MIC29710/29712

7.5A Fast-Response LDO Regulator

General Description

The MIC29710 and MIC29712 are high-current, high-accu-

racy, low-dropout voltage regulators featuring fast transient

recovery from input voltage surges and output load current

changes. These regulators use a PNP pass element that

features Micrel’s proprietary Super ßeta PNP® process.

The MIC29710 is available in the 3-pin fixed output and

the MIC29712 is available in the 5-pin adjustable output

voltage. Both versions are fully protected against

overcurrent faults, reversed lead insertion, over-

temperature operation, and positive and negative transient

voltage spikes.

A TTL compatible enable (EN) control pin supports

external on/off control. If on/off control is not required, the

device maybe continuously enabled by connecting EN to

IN.

The MIC29710 is available in the standard 3-pin TO-220

package the MIC29712 is available in the 5-pin TO-220

package with an operating junction temperature range of

0°C to +125°C.

For applications requiring even lower dropout voltage or

input voltage greater than 16V, see the MIC29750/29752.

Data sheets and support documentation can be found on

Micrel’s web site at www.micrel.com.

Features

• Fast transient response

• 7.5A current capability

• 700mV dropout voltage at full load

• Low ground current

• Accurate 2% guaranteed tolerance

• “Zero” current shutdown mode (MIC29712)

• Fixed voltage and adjustable versions

Applications

• Pentium®, Pentium® Plus, and Power PC® processor

supplies

• High-efficiency “green” computer systems

• High-efficiency linear power supplies

• High-efficiency switching supply post regulator

• Battery-powered equipment

Typical Application

Fixed Regulator Configuration

VOUT

= 1.240⎜⎛ R1 + 1⎟⎞

⎝ R2 ⎠

Adjustable Regulator Configuration

Super ßeta PNP is a registered trademark of Micrel, Inc. Pentium is a registered trademark of Intel Corporation.

PowerPC is a registered trademark of IBM Corporation.

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

October 2006

1

M9999-101906

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