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FAN2513 Schematic ( PDF Datasheet ) - Fairchild Semiconductor

Teilenummer FAN2513
Beschreibung 150 mA CMOS LDO Regulators with Fast Start Enable
Hersteller Fairchild Semiconductor
Logo Fairchild Semiconductor Logo 




Gesamt 10 Seiten
FAN2513 Datasheet, Funktion
www.fairchildsemi.com
FAN2512, FAN2513
150 mA CMOS LDO Regulators with Fast Start Enable
Features
• Ultra Low Power Consumption
• Enable optimized for CDMA time phases
• 150 mV dropout voltage at 150 mA
• 25 µA ground current at 150 mA
• Enable/Shutdown Control
• SOT23-5 package
• Thermal limiting
• 300 mA peak current
Applications
• Cellular Phones and accessories
• PDAs
• Portable cameras and video recorders
• Laptop, notebook and palmtop computers
Description
The FAN2512/13 family of micropower low-dropout voltage
regulators utilize CMOS technology to offer a new level of
cost-effective performance in GSM, TDMA, and CDMA
cellular handsets, Laptop and Notebook portable computers,
and other portable devices. Features include extremely low
power consumption and low shutdown current, low dropout
voltage, exceptional loop stability able to accommodate a
Block Diagrams
VIN
Bandgap
EN
Error
Amplifier
p
VOUT
FAN2512
Thermal
Sense
ADJ
GND
VIN
Bandgap
wide variety of external capacitors, and the compact SOT23-5
surface-mount package. In addition, the FAN2512/13 family
offer the fast power-cycle time required in CDMA handset
applications. These products offer significant improvements
over older BiCMOS designs and are pin-compatible with
many popular devices. The output is thermally protected
against overload.
The FAN2512 and FAN2513 devices are distinguished by
the assignment of pin 4:
FAN2512: pin 4 – ADJ, allowing the user to adjust the
output voltage over a wide range using an external voltage
divider.
FAN2512-XX: pin 4 – BYP, to which a bypass capacitor
may be connected for optimal noise performance. Output
voltage is fixed, indicated by the suffix XX.
FAN2513-XX: pin 4 – ERR, a flag which indicates that the
output voltage has dropped below the specified minimum
due to a fault condition.
The standard fixed output voltages available are 2.5V, 2.6V,
2.7V, 2.8V, 2.85V, 3.0V, and 3.3V. Custom output voltage are
also available: please contact your local Fairchild Sales
Office for information.
VIN
Bandgap
EN
Error
Amplifier
p
BYP
VOUT
FAN2512-XX
EN
Error
Amplifier
p
Thermal
Sense
ERR
VOUT
GND
FAN2513-XX
Thermal
Sense
GND
REV. 1.1.7 2/14/03






FAN2513 Datasheet, Funktion
PRODUCT SPECIFICATION
FAN2512/FAN2513
Electrical Characteristics (Notes 1, 2)
Symbol
Parameter
Conditions
Regulator
VDO Drop Out Voltage
IOUT = 100 µA
IOUT = 50 mA
IOUT = 100 mA
IOUT = 150 mA
VO Output Voltage Accuracy
VDO
VO3
Reference Voltage Accuracy, Adjustable Mode
Output Voltage Accuracy, Adjustable Mode
IGND
Ground Pin Current
IOUT = 150 mA
Protection
Current Limit
IGSD
Shut-Down Current
TSH Thermal Protection Shutdown Temperature
ETL ERR Trip Level
Enable Input
EN = 0V
FAN2513 only
VIL Logic Low Voltage
VIH Logic High Voltage
IIH Input Current High
II Input Current Low
Min. Typ. Max.
2.5 4
50 75
100 140
150 180
-2 2
1.24 1.32 1.40
-6 6
50
Thermally Protected
150
90 95
1
99
1.2 0.4
2.0 1.4
1
1
Units
mV
mV
mV
mV
%
V
%
µA
µA
°C
%
V
V
µA
µA
Switching Characteristics (Notes 1, 2)
Parameter
Enable Input4
Response time
Error Flag (FAN2513-XX)
Response time
Conditions
Min.
Typ.
Max.
500
3
Unit
µsec
msec
Performance Characteristics (Notes 1, 2)
Symbol
Parameter
Conditions
Min. Typ. Max. Units
VOUT/VIN
VOUT/VOUT
eN
PSRR
Line regulation
Load regulation
Output noise
Power Supply Rejection
VIN = (VOUT + 1) to 6.5V
IOUT = 0.1 to 150mA
10Hz–1KHz
COUT = 10µF,
CBYP = 0.01µF
>10KHz,
COUT = 10µF,
CBYP = 0.01µF
120 Hz,
COUT = 10µF,
CBYP = 0.01µF
0.3 % / V
1.0 2.0 %
<7
µV/ Hz
<0.01
43 dB
Notes:
1. Unless otherwise stated, TA = 25°C, VIN = VOUT + 1V, IOUT = 100µA, VIH > 2.0 V.
2. Bold values indicate -40 TJ 125°C.
3. The adjustable version, has a bandgap voltage range of 1.24V to 1.40V with a nominal value of 1.32V.
4. When using repeated cycling.
6 REV. 1.1.7 2/14/03

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