參數(shù)資料
型號(hào): AAT3237
廠商: Advanced Analogic Technologies, Inc.
英文描述: 300mA MicroPower⑩ LDO with PowerOK
中文描述: ⑩微功耗300mA的LDO穩(wěn)壓器與PowerOK
文件頁(yè)數(shù): 8/13頁(yè)
文件大?。?/td> 172K
代理商: AAT3237
AAT3237
300mA MicroPower LDO with PowerOK
8
3237.2006.01.1.4
Functional Description
The AAT3237 is intended for LDO regulator appli-
cations where output current load requirements
range from no load to 300mA.
The advanced circuit design of the AAT3237 pro-
vides excellent transient response and fast turn-on
ability. The LDO regulator output has been specif-
ically optimized to function with low-cost, low-ESR
ceramic capacitors. However, the design will allow
for operation over a wide range of capacitor types.
The AAT3237 has an integrated Power-OK com-
parator which indicates when the output is out of
regulation.
The device enable circuit is provided to shut down
the LDO regulator for power conservation in portable
products. The enable circuit has an additional out-
put capacitor discharge circuit to assure sharp appli-
cation circuit turn-off upon device shutdown.
This LDO regulator has complete short-circuit and
thermal protection. The integral combination of
these two internal protection circuits gives the
AAT3237 a comprehensive safety system during
extreme adverse operating conditions. Device
power dissipation is limited to the package type
and thermal dissipation properties. Refer to the
Thermal Considerations section of this datasheet
for details on device operation at maximum output
current loads.
Functional Block Diagram
Over-Current
Protection
Voltage
Reference
94%
Error
Amplifier
Over-Temperature
Protection
IN
POK
EN
GND
OUT
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