AS1369 Factsheet

High Performance LDO
www.ams.com/AS1369
AS1369 – High Performance LDO
- Small size
- Outstanding noise performance
- Excellent power supply rejection ratio
- High accuracy
- Low power consumption
We provide innovative
analog solutions to
the most challenging
applications in sensor
and sensor interfaces,
power management,
and wireless.
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 30μVRMS. 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.
Applications
Features
-
- Low dropout voltage: typ. 40mV @ 100mA
- 200mA high maximum load current
- 2.0 to 5.5V input voltage
- High accuracy: ±2% over temperature
- Thermal and over current protection
- 25µA quiescent current
- High PSRR: 72dB @ 1kHz
- No noise bypass capacitor required
- Low noise: 30µVRMS
- Enable pin
- Package: 4-bump WL-CSP 0.5mm pitch
Space sensitive applications
Mobile and cordless phones
PDAs and handheld computers
Bluetooth portable devices
Personal audio devices
Portable and battery powered equipment
better
Accuracy
30%
Dropout Voltage
50%
Quiescent Current
28%
Ground Pin Current
45%
Output Noise Voltage
14%
Shutdown Supply Current
50%
AS1346 Block Diagram
V IN
C IN
AS1369
V OUT
V REF
On/Off
Control
EN
_
+
C OUT
Thermal &
Over Current
Protection
GND
A2
EN
B2
V IN
A1
GND
B1
V OUT
(WLP; Top Through View)
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© 06/2012 by ams
Subject to change without notice
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ams AG
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