參數(shù)資料
型號(hào): AS1341-BTDT
廠商: AUSTRIAMICROSYSTEMS AG
元件分類: DC/DC變換器
英文描述: 20V, Hyst.600mA Buck Converter; Package Type: TDFN(3x3)-8
中文描述: 20V的,600毫安,100%占空比,降壓型轉(zhuǎn)換器
封裝: TDFN(3x3)-8
文件頁(yè)數(shù): 1/18頁(yè)
文件大?。?/td> 599K
代理商: AS1341-BTDT
AS1341
20V, 600mA, 100% Duty Cycle, Step-Down Converter
wwwaustriamcrosystems.com/DC-DC_Step-Down/AS1341
Revision 1.08
1 - 18
Datasheet
1 General Description
The AS1341 is a high-efficiency step-down converter with adjustable
output voltages from1.25V to V
IN
using supply voltages of up to
20V.
An integrated current-limted 0.4
Ω
MOSFET delivers load currents
up to 600mA.
The AS1341 also includes a 100% duty cycle LDO mode with a low
dropout of only 250mV for high efficiency if input voltages is in the
range of the output voltage.
The AS1341 has a low quiescent current (12μA) to improve light-
load efficiency and mnimze battery use, and draws only 0.8μA in
shutdown mode.
High switching frequencies (up to 200kHz) allow the use of small
surface-mount inductors and output capacitors.
The device is available in a TDFN-8 3x3mmpin package.
Figure 1. AS1341 - Typical Application
2 Key Features
Output Voltages: Fixed 5V or Adjustable
Input Voltage Range: 4.5V to 20V
Output Current: Up to 600mA
1.25V Lowest Output Voltage
Efficiency: up to 96%
Quiescent Supply Current: 12μA
Power-OK Output
Internal 0.4
Ω
P-Channel MOSFET
Shutdown Current: 0.8μA
100% MaximumDuty Cycle for Low Dropout
Current-Limted Architecture
Thermal Shutdown
TDFN-8 3x3mmPackage
3 Applications
The device is ideal for notebook computers, distributed power
systems, keep-alive supplies, and any other battery-operated,
portable device.
V
IN
4.5V to 20V
5
IN
1
FB
C
IN
V
OUT
= 5V
AS1341
2
GND
8
OUT
D1
C
OUT
+
Indicates High-Power Trace
3
POK
R
PULL
7
SHDNN
6
ILIMIT
4
LX
L1
相關(guān)PDF資料
PDF描述
AS1343A-BTDT-10 42V, 1MHz, Single Cell, Boost; Package Type: TDFN(3x3)-10; Temperature Range: -40 - +85 °C; Dimension: 3 x 3 mm; Shutdown: Yes; Output Current: 140mA; Output Range: 5.5 to 42V; Supply Voltage: 0,90-3,60
AS1344-BTDT 42V DCDC for OLED; Package Type: TDFN(3x3)-10
AS1351-T Dual LDO with OTP 1.8 to 3.3V; Package Type: QFN(3x3)-12; Output Range: 2 x 3,3V
AS1352-7BC0-T Quad LDO with OTP 1.8 to 3.3V; Package Type: QFN(4x4)-12; Output Range: 1,8V; Output Range: 2,5V; Output Range: 2,9V; Output Range: 3,0V
AS1352-C0CF-T Quad LDO with OTP 1.8 to 3.3V; Package Type: QFN(4x4)-12; Output Range: 1,8V; Output Range: 2 x 3,0V; Output Range: 3,3V
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
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