參數(shù)資料
型號(hào): LDO52
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, Low Power, 70mA Low Dropout Voltage Regulator
中文描述: IP庫(kù):高PSRR,低功耗,低壓差七十〇毫安穩(wěn)壓
文件頁(yè)數(shù): 1/4頁(yè)
文件大?。?/td> 48K
代理商: LDO52
1/4
June 2002
IP Library: High PSRR, Low Power,
70mA Low Dropout Voltage Regulator
I
DIGITAL BASEBAND REGULATOR
I
VERY LOW DROPOUT VOLTAGE : 50mV
I
HIGH PSRR : 60dB
LOW QUIESCENT CURRENT : 150
μ
A
1
μ
A STAND-BY MODE CURRENT
NO CURRENT IN POWER DOWN MODE
I
I
I
I
SHORT CIRCUIT PROTECTION
I
SMALL DECOUPLING CERAMIC CAPACITOR
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 (Memory, DSP/Microcontroller)
devices.
APPLICATION NOTE
An external capacitor (C
OUT
= 1
μ
F typical) with an
equivalent serial resistance (ESR) in the range
0.02 to 0.6
is used to ensure stability.
Figure 1 :
Block Diagram
V
REF
LDO_52
OUT
IN
PWRDWN
STDBY
Figure 2 :
Typical Application Circuit
1
μ
F
ESR
V
OUT
C
OUT
OUT
GND
V
IN
IN
PWRDWN
Power Down Mode
ON
OFF
Stand-by Mode
Active Mode
STDBY
LDO_52
Stand-by Mode
LDO_52
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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