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参数资料
| 型号： | AS1367-BTDT-45 |
| 厂商： | AUSTRIAMICROSYSTEMS AG |
| 元件分类： | 基准电压源/电流源 |
| 英文描述： | Adaptive LDO |
| 文件页数： | 1/19页 |
| 文件大小： | 460K |
| 代理商： | AS1367-BTDT-45 |
AS1367
150mA, Adaptive Low Dropout Linear Regulator
www.austriamcrosystems.com
Revision 1.4
1 - 19
Datasheet
1 General Description
The AS1367 is a precise, low noise, high speed, low dropout
regulator with adaptive operation. AS1367 adapts the bias current of
the control loop to the load current. As the load current increases,
the bias current tracks the increase in order to improve the regulator
transient performance. As a result, improved efficiency is obtained at
low load currents.
Additional features provided by the AS1367 are low dropout
operation, high ripple rejection, and excellent noise performance.
Normal preset output voltage operation is provided by connecting the
SET pin to ground. If non-standard output voltages are required, the
SET pin provides access to the feedback point of the error loop when
the SET pin is <100mV. The reference voltage is 1V in this condition.
The EN pin turns on the regulator. When the enable pin is low the
regulator is turned off, and a 740
(typ) discharge path is enabled
between the output pin and ground. This ensures a consistent
discharge of the load capacitance at the regulator output pin.
A Power OK comparator monitors the voltage on the SET pin and if
the voltage goes out of regulation (e.g. during dropout, current limt,
or thermal shutdown), the POK pin goes low If the pin SET is
connected to GND, an internal resistive-divider is activated and
connected to the output. Therefore, the Power-OK functionality is
available for pre-set and adjustable voltage applications.
Low noise operation is ensured by connecting a 10nF capacitor
between the BYP pin and OUT pin. Transient performance is
assisted by the path through the BYP capacitor to the error amplifier.
Comprehensive protection is built-in. Apart fromshort circuit and
over-current protection, thermal protection shuts down the device
when the die temperature reaches 160°C.
The device is available in a 8-pin TDFN 2x2 package.
2 Key Features
Low Dropout Voltage: 110mV @ 150mA load
Operating Input Voltage Range: 2.0V to 5.5V
Output Voltage Range: 1.2V to 5.0V (50mV steps)
MaximumOutput Current: 150mA
Low Shutdown Current: 100nA
High PSRR: 60dB @ 10kHz
Integrated Over-temperature / Over-current Protection
Under-Voltage Lockout Feature
Chip Enable Input
Power-OK
Low Quiescent Current: 10μA
Low Output Noise: 15μV @ 100kHz Bandwidth
Operating Temperature Range: -40°C to +85°C
8-pin TDFN 2x2 Package
3 Applications
The AS1367 is ideal for cellular phones, cordless phones, wireless
communication equipment, portable games, cameras, video
recorders, portable audio-video equipment and personal digital
assistants.
Figure 1. AS1367 - Typical Application Diagram
Input
2V to 5.5V
C
IN
1μF
R
PU
100k
C
OUT
3.3μF
Output
1.2V to 5.0V
IN
IN
BYP
OUT
AS1367
POK
GND
SET
ON /
OFF
EN
C
BYP
10nF
相关PDF资料 |
PDF描述 |
|---|---|
| AS1369-BWLT-18 | 200mA Micro-Sized; Package Type: CS-WLP(1x1)-4; Output Range: 1.8V |
| AS1369-BWLT-15 | 200mA Micro-Sized |
| AS1369-BWLT-25 | 200mA Micro-Sized; Package Type: CS-WLP(1x1)-4; Output Range: 2.5V |
| AS1369-BWLT-28 | 200mA Micro-Sized; Package Type: CS-WLP(1x1)-4; Output Range: 2,8V |
| AS1369-BWLT-33 | 200mA Micro-Sized; Package Type: CS-WLP(1x1)-4; Output Range: 3.3V |
相关代理商/技术参数 |
参数描述 |
|---|---|
| AS1369 | 制造商:AMSCO 制造商全称:austriamicrosystems AG 功能描述:200mA Ultra-Compact Low Dropout Regulator |
| AS1369_04 | 制造商:AMSCO 制造商全称:austriamicrosystems AG 功能描述:200mA Ultra-Compact Low Dropout Regulator |
| AS1369-12 EB | 制造商:AMS 功能描述:BOARD EVAL FOR AS1369-12 |
| AS1369-12-EB | 制造商:ams 功能描述:AS1369 Evaluation Board |
| AS1369-13 EB | 制造商:AMS 功能描述:BOARD EVAL FOR AS1369-13 |
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