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Preliminary Datasheet

1.6x Linear DC Fan Driver with VOUT Fully on Control AP2113

Mar. 2012 Rev 1. 3 BCD Semiconductor Manufacturing Limited

General Description

The AP2113 is a low dropout high performance linear

regulator which is specially designed to drive a DC

fan, the regulator delivers output current 600mA in

minimum.

The AP2113 provides low quiescent current

consumption 70µA, over current limit protection and

load short current protection with fold-back limitation

50mA, which are ideal for battery powered system

application.

The AP2113 output voltage (V

OUT

) follows 1.6 times

of V

SET

input voltage until it reaches V

voltage

inus dropout voltage (V

DROP

) at adjustable mode

(set FON

________

pin logic high). The V

SET

voltage must be

larger than 1.0V to guarantee V

OUT

1.6 times of V

SET

An FON

________

pin turns V

OUT

fully on when set logic low.

The AP2113 is available in standard SOIC-8 and

SOT-23-5 packages.

Features

• Output Voltage in Adjustable Mode Follows 1.6

Times of V

SET

OUT

SET

=1.6±3%)

• Low Quiescent Current: 70µA (Typ)

• Guarantee 0.6A Continuous Load

• Switchable Adjustable Mode/Full Speed Mode

• Over Current Protection

• Short Current Protection with Fold-back

Limitation: 50mA

• Low Dropout Voltage:

150mV @ 600mA (Typ) at Full Speed Mode

200mV @ 600mA (Typ) at Adjustable Mode

• OTSD Protection

• Stable with 1.0µF Flexible Caps: Ceramic,

Tantalum and Aluminum Electrolytic

• Operation Temperature Range: -40°C to 85°C

• ESD: MM 300V, HBM 6000V

Applications

• Notebook Computer Fan Driver

• Motherboards

• Peripheral Cards

SOIC-8 SOT-23-5

Figure 1. Package Type of AP2113

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