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| 型號： | AS13986-2828-T |
| 廠商： | AUSTRIAMICROSYSTEMS AG |
| 元件分類： | 基準電壓源/電流源 |
| 英文描述： | Dual 150mA Low-Noise LDO; Package Type: CS-WLP(1.5x1.5)-8; Output Range: 2 x 2,8V |
| 封裝： | CS-WLP(1.5x1.5)-8 |
| 文件頁數(shù)： | 1/13頁 |
| 文件大?。?/td> | 648K |
| 代理商： | AS13986-2828-T |
AS13986
Dual Low-Noise, Low-Dropout Voltage Regulator
www.austriamicrosystems.com
Revision 1.02
1 - 13
Datasheet
1 General Description
The AS13986 dual low-dropout regulator provides up to
150mA at each output using a 2.5 to 5.5V input voltage.
The ultra-low drop-out voltage, low quiescent current,
and low noise make the AS13986 perfect for low-power,
battery-operated applications.
Regulator ground current increases only slightly in drop-
out, extending the battery life in low-power applications.
The device features excellent power supply rejection
(55dB @ 1kHz and 50dB at 10kHz). The high power
supply rejection is maintained down to low input voltage
levels used in battery operated devices.
Integrated shutdown logic control function is available
for each output. In cases where the device is used as a
local regulator it is possible to switch some of the cir-
cuitry into standby mode, thus decreasing total power
consumption.
The AS13986 was specifically designed to work with
low-ESR ceramic capacitors.
The AS13986 is available in a 8-pin WLP package.
Figure 1. AS13986 - Block Diagram
2 Key Features
!
Input Voltage: 2.5 to 5.5V
!
Dual Output Voltages: 1.2 to 5.0V (in 50mV Steps)
!
Ultra-Low Dropout Voltage: 45mV @ 150mA Load,
0.3mV @ 1mA Load
!
Very Low Quiescent Current: 135μA @ No Load,
255μA @ 150mA Load, 2μA In Off Mode
!
Guaranteed Output Current up to 150mA
!
Fast Turn-On Time: 160μs (C
OUT
= 1μF,
C
BYPASS
= 10nF, I
OUT
= 1mA)
!
Logic-Controlled Shutdown
!
Up to 1.5% Output Voltage Accuracy
!
Integrated Current-Limit and Thermal Overload
Protection
!
Output Low-Noise Voltage: 30μV
RMS
(10Hz to
100kHz)
!
Supply Voltage Rejection.: 55dB @ 1kHz,
50dB @ 10kHz
!
Stable With Low-ESR Ceramic Capacitors
!
Temperature Range: -40 to 125oC
!
8-pin WLP Package
3 Applications
The device is ideal for powering cordless and mobile
phones, MP3 players, CD and DVD players, PDAs,
handheld computers, digital cameras and any other
hand-held battery-powered device.
V
REF
AS13986
Thermal
Protection
–
+
Fast
Turn On
Enable
+
–
A2
V
IN
B3
A3
V
OUT1
EN1
B1
EN2
C1
BYPASS
A1
V
OUT2
C2, C3
GND
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