FAN2510_10 Datasheet, PDF (1/10 Pages) Fairchild Semiconductor – 100 mA CMOS LDO Regulators

www.fairchildsemi.com
FAN2510, FAN2511
100 mA CMOS LDO Regulators with Fast Start Enable
Features
• Ultra Low Power Consumption
• Enable optimized for CDMA time slices
• 100 mV dropout voltage at 100 mA
• 25 µA ground current at 100 mA
• Enable/Shutdown Control
• SOT23-5 package
• Thermal limiting
• 300 mA peak current
wide variety of external capacitors, and the compact SOT23-5
surface-mount package. In addition, the FAN2510/11 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 FAN2510 and FAN2511 devices are distinguished by
the assignment of pin 4:
Applications
• Cellular Phones and accessories
• PDAs
• Portable cameras and video recorders
• Laptop, notebook and palmtop computers
Description
The FAN2510/11 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
p
Amplifier
VOUT
ADJ
FAN2510: pin 4 – ADJ, allowing the user to adjust the
output voltage over a wide range using an external voltage
divider.
FAN2510-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.
FAN2511-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
p
Amplifier
BYP
VOUT
FAN2510
Thermal
Sense
GND
VIN
Bandgap
FAN25100-XX
EN
Error
p
Amplifier
Thermal
Sense
ERR
VOUT
GND
FAN2511-XX
Thermal
Sense
GND
REV. 1.0.7 12/17/10