AS1364 Datasheet, PDF (1/15 Pages) ams AG – 1A, Low-Dropout Linear Voltage Regulator

Datasheet
AS1364
1A, Low-Dropout Linear Voltage Regulator
1 General Description
The AS1364 is a low-dropout linear regulator (LDO)
designed to operate from 2V to 5.5V input, that delivers
a wide range of highly accurate (±0.75%) factory-
trimmed output voltages as well as adjustable output
voltages (using an external resistor-divider network).
The ultra-low dropout device requires only 140mV drop-
out voltage while delivering a guaranteed 1A load cur-
rent and is therefore perfectly suited for battery-operated
portable applications.
Additionally the AS1364 offers extremly low 10µVRMS
(100Hz to 100kHz) or 45µVRMS (10Hz to 1MHz) output
voltage noise.
Table 1. Standard Products
Model Output Type BYP
SET
AS1364-AD Adjustable
No
Yes
AS1364-_ _ Fixed
Yes
No
The device features an internal PMOS pass transistor
(for a low supply current of only 35µA), reset output, a
low-power shutdown mode, and protection from short-
circuit and thermal-overload conditions.
The AS1364 is available in an 8-pin TDFN 3x3mm pack-
age.
2 Key Features
! Guaranteed Output Current: 1A
! Low Dropout: 140mV @ 1A
! Output Voltage Accuracy: Up to ±0.75%
! 2.0V to 5.5V Input Voltage
! Fixed VOUT: 1.2V to 5.0V
! Adjustable VOUT: 1.2V to 5.3V
! Low Ground Current: 35µA
! Low Shutdown Current: 10nA
! Low Output Noise: 45µVRMS (from 10Hz to 1MHz)
! Thermal Overload Protection
! Output Current Limit
! 8-pin TDFN 3x3mm Package
3 Applications
The device is ideal for laptops, PDAs, portable audio
devices, mobile phones, cordless phones, and any other
battery-operated portable device.
Figure 1. AS1364 - Typical Application Diagram
3
VIN
CIN
4.7µF
On
Off
IN
4
IN
AS1364
2
EN
8
GND
6
OUT
5
OUT
1
POK
7
Reset Output
SET/BYP
VOUT
COUT
4.7µF
CBYP
10nF
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