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REG710NA-5 Datasheet

  • REG710NA-5

  • 60mA, 5.0V, Buck/Boost Charge Pump in ThinSOT-23 and ThinQFN

  • 23頁

  • TI

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REG710
www.ti.com...............................................................................................................................................
SBAS221F 鈥?DECEMBER 2001 鈥?REVISED MARCH 2008
60mA, 5.0V, Buck/Boost Charge Pump
in ThinSOT-23 and ThinQFN
1
FEATURES
Wide Input Range: 1.8V to 5.5V
Automatic Step-Up/Step-Down Operation
Low Input Current Ripple
Low Output Voltage Ripple
Minimum Number of External
Components鈥擭o Inductors
1MHz Internal Oscillator Allows Small
Capacitors
Shutdown Mode
Thermal and Current Limit Protection
Six Output Voltages Available:
鈥?5.5V, 5.0V, 3.3V, 3.0V, 2.7V, 2.5V
Small Packages:
鈥?SOT23-6
鈥?TSOT23-6 (REG71055 and
REG71050
Only)
鈥?TQFN-6 (2脳2脳0.8mm;
REG71050
Only)
Evaluation Modules Available:
鈥?/div>
REG710EVM-33, REG710EVM-5
DESCRIPTION
The REG710 is a switched capacitor voltage
converter that produces a regulated, low-ripple output
voltage from an unregulated input voltage. A wide
input supply voltage of 1.8V to 5.5V makes the
REG710 ideal for a variety of battery sources, such
as single-cell Li-Ion, or two- and three-cell nickel- or
alkaline-based chemistries.
The input voltage may vary above and below the
output voltage and the output remains in regulation. It
works equally well for step-up or step-down
applications without the need for an inductor,
providing low EMI dc/dc conversion. The high
switching frequency allows the use of small
surface-mount capacitors, saving board space and
reducing cost. The REG710 is thermally protected
and current limited, protecting the load and the
regulator during fault conditions. Typical ground pin
current (quiescent current) is 65碌A with no load, and
less than 1碌A in shutdown mode.
C
PUMP
0.22
m
F
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
2
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
APPLICATIONS
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
Smart Card Readers
SIM Card Supplies
Cellular Phones
Portable Communication Devices
Personal Digital Assistants
Notebook and Palm-Top Computers
Modems
Electronic Games
Handheld Meters
PCMCIA Cards
Card Buses
White LED Drivers
LCD Displays
Battery Backup Supplies
Enable
3.3V to
4.2V
REG71050
REG710-5
C
IN
2.2
m
F
GND
C
OUT
2.2
m
F
R
R
R
LED
LED
LED
REG710 Used in White LED Backlight Application
1
2
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
All trademarks are the property of their respective owners.
Copyright 漏 2001鈥?008, Texas Instruments Incorporated
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.

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