FAN2500S Fairchild Semiconductor, FAN2500S Datasheet

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FAN2500S

Manufacturer Part Number
FAN2500S
Description
Adj. 100 mA CMOS LDO Regulator
Manufacturer
Fairchild Semiconductor
Datasheet

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Features
• Ultra Low Power Consumption
• 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
Applications
• Cellular Phones and accessories
• PDAs
• Portable cameras and video recorders
• Laptop, notebook and palmtop computers
Description
The FAN2500/01 family of micropower low-dropout voltage
regulators utilize CMOS technology to offer a new level of
cost-effective performance in GSM and TDMA 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
FAN2500, FAN2501
100 mA CMOS LDO Regulators
V IN
FAN2500
Bandgap
Thermal
Sense
Error
Amplifier
EN
p
V IN
FAN2501-XX
GND
ADJ
Bandgap
V OUT
Thermal
Sense
Error
Amplifier
wide variety of external capacitors, and the compact SOT23-5
surface-mount package. The FAN2500/01 family of products
offer significant improvements over older BiCMOS designs
and are pin-compatible with many popular devices. The
output is thermally protected against overload.
The FAN2500 and FAN2501 devices are distinguished by
the assignment of pin 4:
FAN2500: pin 4 – ADJ, allowing the user to adjust the
output voltage over a wide range using an external voltage
divider.
FAN2500-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.
FAN2501-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.
EN
V IN
FAN2500-XX
Bandgap
p
GND
Thermal
Sense
ERR
Error
Amplifier
V OUT
EN
www.fairchildsemi.com
p
GND
BYP
V OUT
REV. 1.0.6 2/14/03

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FAN2500S Summary of contents

Page 1

FAN2500, FAN2501 100 mA CMOS LDO Regulators Features • Ultra Low Power Consumption • 100 mV dropout voltage at 100 mA • 25 µA ground current at 100 mA • Enable/Shutdown Control • SOT23-5 package • Thermal limiting • 300 ...

Page 2

PRODUCT SPECIFICATION Pin Assignments Pin No. FAN2500 Pin Descriptions Pin Name Pin No. Type ADJ 4 Input BYP 4 Passive ERR 4 Open drain EN 3 Digital Input V 1 Power ...

Page 3

FAN2500/FAN2501 Depending on the model selected, a number of control and status functions are available to enhance the operation of the LDO regulator. An Enable pin, available on all devices, allows the user to shut down the regulator output to ...

Page 4

PRODUCT SPECIFICATION Thermal Characteristics The FAN2500/01 is designed to supply 100mA at the specified output voltage with an operating die (junction) temperature 125°C. Once the power dissipation and thermal resistance is known, the maximum junction temperature of ...

Page 5

FAN2500/FAN2501 Absolute Maximum Ratings Parameter Power Supply Voltages V (Measured to GND) IN Enable Input (EN) Applied voltage (Measured to GND) ERR Output Applied voltage (Measured to GND) Power 3 Dissipation Temperature Junction Lead Soldering (5 seconds) Storage 4 Electrostatic ...

Page 6

PRODUCT SPECIFICATION Electrical Characteristics Symbol Parameter Regulator V Drop Out Voltage DO V Output Voltage Accuracy O V Reference Voltage Accuracy, Adjustable DO Mode 3 V Output Voltage Accuracy, Adjustable Mode O I Ground Pin Current GND Protection Current Limit ...

Page 7

FAN2500/FAN2501 Typical Performance Characteristics Power Supply Rejection Ratio 100 I = 100 A OUT C = 1.0 F Cer. 80 OUT 4. 3.0V OUT 0 1k 10k 100k 1M 10M 10 100 ...

Page 8

PRODUCT SPECIFICATION Typical Performance Characteristics Ground Pin Current OUT I = 100 - 125 Temperature ( C) Dropout Characteristics 3.5 3 ...

Page 9

FAN2500/FAN2501 Mechanical Dimensions 5-Lead SOT-23-5 (S) Package Inches Millimeters Symbol Min. Max. Min. A .035 .057 .90 A1 .000 .006 .00 B .008 .20 .020 c .003 .010 .08 D .106 .122 2.70 E .059 .071 1.50 e .037 BSC ...

Page 10

... PRODUCT SPECIFICATION Ordering Information Product Number FAN2500SX FAN2500S25X FAN2500S26X FAN2500S27X FAN2500S28X FAN2500S285X FAN2500S30X FAN2500S33X FAN2501S25X FAN2501S26X FAN2501S27X FAN2501S28X FAN2501S285X FAN2501S30X FAN2501S33X Tape and Reel Information Quantity 3000 DISCLAIMER FAIRCHILD SEMICONDUCTOR RESERVES THE RIGHT TO MAKE CHANGES WITHOUT FURTHER NOTICE TO ANY PRODUCTS HEREIN TO IMPROVE RELIABILITY, FUNCTION OR DESIGN. FAIRCHILD DOES NOT ASSUME ANY LIABILITY ARISING OUT OF THE APPLICATION OR USE OF ANY PRODUCT OR CIRCUIT DESCRIBED HEREIN ...

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