AS1369

200mA Ultra-Compact Low Dropout Regulator

www.austriamicrosystems.com/LDOs/AS1369

Revision 1.7

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Datasheet

1 General Description

The AS1369 is an ultra compact high-performance low-dropout

200mA voltage regulator designed for use with very-low ESR output

capacitors. The device can deliver superior performance in all

specifications critical to battery-powered designs, and is perfectly

suited for mobile phones, PDAs, MP3 players, and other battery

powered devices.

The AS1369 is fully operational with small input and output capacitor

of only 0.47µF offering PSRR of 72dB typical and a noise level of

Typical quiescent current is around 25µA while in shutdown the

AS1369 requires less than 0.1µA quiescent current.

Regulation performance is excellent even under low dropout

conditions, when the power transistor has to operate in linear mode.

The AS1369 offers excellent low-noise performance requiring no

external bypass capacitance.

Multiple output voltage options between 1.2V and 5.0V in 100mV

steps are available and the minimum input voltage is as low as 2.0V

(depending on the output voltage version), so the component can be

used with the new and emerging battery technologies.

The AS1369 is available in a 4-bump WL-CSP package.

Figure 1. AS1369 - Block Diagram

2 Key Features



Low Dropout Voltage: typ. 40mV @ 100mA



200mA High Maximum Load Current



2.0V to 5.5V Input Voltage



1.2V to 5.0V Output Voltage (in 100mV steps)



High Accuracy: ±2% Over Temperature



Thermal and Over Current Protection



25µA Quiescent Current



<0.1µA Standby Current



High PSRR: 72dB @ 1kHz



No Noise Bypass Capacitor Required





Enable Pin



Package: 4-bump WL-CSP 0.5mm pitch

3 Applications

The device is ideal for mobile communication, battery powered

systems and any electronic equipment.

On/Off

Control

Thermal &

Over Current

Protection

_

+

GND

C2 1µF

EN

C1 1µF

B1

A1

GND

B2

A2

EN

(WLP; Top Through View)

AS1369