MIC5238-1.0YD5TR Micrel Semiconductor, MIC5238-1.0YD5TR Datasheet

MIC5238-1.0YD5TR

Manufacturer Part Number

MIC5238-1.0YD5TR

Description

Manufacturer

Micrel Semiconductor

Datasheet

1.MIC5238-1.0YD5TR.pdf (10 pages)

Specifications of MIC5238-1.0YD5TR

Date_code

06+

Packing_info

SOT-153

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General Description

The MIC5238 is an ultra-low voltage output, 150mA LDO

regulator. Designed to operate in a single supply or dual

supply mode, the MIC5238 consumes only 23µA of bias

current, improving efficiency. When operating in the dual

supply mode, the efficiency greatly improves as the higher

voltage supply is only required to supply the 23µA bias

current while the output and base drive comes off of the much

lower input supply voltage.

As a µCap regulator, the MIC5238 operates with a 2.2µF

ceramic capacitor on the output, offering a smaller overall

solution. It also incorporates a logic-level enable pin that

allows the MIC5238 to be put into a zero off-current mode

when disabled.

The MIC5238 is fully protected with current limit and thermal

shutdown. It is offered in the IttyBitty™ SOT-23-5 package

with an operating junction temperature range of

–40°C to +125°C.

Ordering Information

* Other voltage options available. Contact Micrel Marketing for information.

**Under bar symbol (_) may not be to scale.

Typical Application

IttyBitty is a trademark of Micrel, Inc.

April 2005

MIC5238

Standard

MIC5238-1.0BM5

MIC5238-1.1BM5

MIC5238-1.3BM5

MIC5238-1.0BD5

MIC5238-1.1BD5

MIC5238-1.3BD5

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

Marking Code

N410

N411

N413

L410

L411

L413

Part Number*

Pb-Free

MIC5238-1.0YM5

MIC5238-1.1YM5

MIC5238-1.3YM5

MIC5238-1.0YD5

MIC5238-1.1YD5

MIC5238-1.3YD5

BIAS

=1.5V

=2.5V

Ultra-Low Voltage Application

OFF ON

BIAS

MIC5238-1.0BM5

Marking Code**

N410

N411

N413

L410

L411

L413

Features

• Ultra-low input voltage range: 1.5V to 6V

• Ultra-low output voltage: 1.1V minimum output voltage

• Low dropout voltage: 310mV at 150mA

• High output accuracy: ±2.0% over temperature

• µCap: stable with ceramic or tantalum capacitors

• Excellent line and load regulation specifications

• Zero shutdown current

• Reverse leakage protection

• Thermal shutdown and current limit protection

• IttyBitty™ SOT-23-5 package

Applications

• PDAs and pocket PCs

• Cellular phones

• Battery powered systems

• Low power microprocessor power supplies

Ultra-Low Quiescent Current, 150mA

ceramic

OUT

1.0V

=2.2µF

Voltage

1.0V

1.1V

1.3V

1.0V

1.1V

1.3V

MIC5238

–40°C to +125°C

Junction Temp.

Cap LDO Regulator

TSOT-23-5

SOT-23-5

Package

M9999-041205

Micrel, Inc.

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