參數(shù)資料
型號: LDO53
廠商: 意法半導(dǎo)體
元件分類: 基準(zhǔn)電壓源/電流源
英文描述: IP Library: High PSRR, Very Low Power, 40mA Low Dropout Voltage Regulator
中文描述: IP庫:高PSRR,極低功耗,四〇毫安低壓差穩(wěn)壓器
文件頁數(shù): 1/4頁
文件大?。?/td> 97K
代理商: LDO53
1/4
June 2002
IP Library: High PSRR, Very Low Power,
40mA Low Dropout Voltage Regulator
I
DIGITAL BASEBAND REGULATOR
I
VERY LOW DROPOUT VOLTAGE : 50mV
I
HIGH PSRR : 55dB
I
VERY LOW QUIESCENT CURRENT : 100
μ
A
FULL LOAD
I
NO CURRENT IN POWER DOWN MODE
I
SHORT CIRCUIT PROTECTION
I
SMALL DECOUPLING CERAMIC CAPACITOR
TYPICAL APPLICATIONS
– Cellular and Cordless phones supplied by 1 cell
Lithium-ion battery / 3 cells Ni-MH or Ni-Cd
battery.
– PDA (Personal Digital Assistant), Smart phone.
– Portable equipment
– Supply for Digital (DSP/Microcontroller) devices.
APPLICATION NOTE
An external capacitor (C
OUT
= 1
μ
F) with an
equivalent serial resistance (ESR) in the range
0.02 to 0.6
is used for regulator stability.
Figure 1 :
Block Diagram
V
REF
LDO_53
OUT
IN
PWRDWN
Figure 2 :
Typical Application Circuit
1
μ
F
ESR
V
OUT
C
OUT
OUT
GND
V
IN
IN
Power Down Mode
OFF
ON
LDO_53
PWRDWN
LDO_53
This is advance information on a new product now in development or undergoing evaluation. Details are subject to change without notice.
PRODUCT PREVIEW
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