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LDO513 Datenblatt(PDF) 1 Page - STMicroelectronics

Teilenummer LDO513
Bauteilbeschribung  IP Library: Power Supply Range 2.9V to 13V, Low Power, 50mA Low Dropout Voltage Regulator
PDF  4 Pages
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Hersteller  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

LDO513 Datenblatt(HTML) 1 Page - STMicroelectronics

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June 2002
s CHARGE CONTROL REGULATOR
s VERY LOW DROPOUT VOLTAGE : 60mV
s LARGE INPUT VOLTAGE RANGE
s OUTPUT CURRENT : 50mA
s LOW QUIESCENT CURRENT : 280µA
s HIGH PSRR : 60dB
s NO CURRENT IN POWER DOWN MODE
s SHORT CIRCUIT PROTECTION
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 Charge control devices of cellular
phone
APPLICATION NOTE
An external capacitor (COUT = 1µF) with an
equivalent serial resistance (ESR) in the range
0.02 to 0.6
Ω is used for regulator stability.
The
regulator
needs
two
separated
power
supplies, one (V5V) for the digital parts and
programming inputs (Stand-by and Power-down
mode) which cannot exceed 5V and one (Vin) as
the input voltage of the regulator.
Figure 1 : Block Diagram
?
VREF
?
?
?
LDO_513
OUT
IN
PWRDWN
STDBY
?
V5V
Figure 2 : Typical Application Circuit
1
µF
ESR
VOUT
COUT
?
?
OUT
GND
?
?
?
VIN
IN
PWRDWN
Power Down Mode
OFF
ON
Stand-by Mode
STDBY
Active Mode
LDO_513
→
→
Stand-by Mode
→
→
?
5V Power Supply
V5V
LDO_513
This is advance information on a new product now in development or undergoing evaluation. Details are subject to change without notice.
PRODUCT PREVIEW
IP Library: Power Supply Range 2.9V to 13V, Low Power,
50mA Low Dropout Voltage Regulator


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