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PDF LM2765M6 Data sheet ( Hoja de datos )

Número de pieza LM2765M6
Descripción Switched Capacitor Voltage Converter
Fabricantes National Semiconductor 
Logotipo National Semiconductor Logotipo



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No Preview Available ! LM2765M6 Hoja de datos, Descripción, Manual

March 2000
LM2765
Switched Capacitor Voltage Converter
General Description
The LM2765 CMOS charge-pump voltage converter oper-
ates as a voltage doubler for an input voltage in the range of
+1.8V to +5.5V. Two low cost capacitors and a diode are
used in this circuit to provide up to 20 mA of output current.
The LM2765 operates at 50 kHz switching frequency to re-
duce output resistance and voltage ripple. With an operating
current of only 130 µA (operating efficiency greater than 90%
with most loads) and 0.1µA typical shutdown current, the
LM2765 provides ideal performance for battery powered
systems. The device is manufactured in a SOT-23-6 pack-
age.
Features
n Doubles Input Supply Voltage
n SOT23-6 Package
n 20Typical Output Impedance
n 90% Typical Conversion Efficiency at 20 mA
n 0.1µA Typical Shutdown Current
Applications
n Cellular Phones
n Pagers
n PDAs
n Operational Amplifier Power Supplies
n Interface Power Supplies
n Handheld Instruments
Basic Application Circuits
Voltage Doubler
Connection Diagram
6-Lead SOT (M6)
DS101281-1
DS101281-22
Actual Size
DS101281-13
Top View With Package Marking
Ordering Information
Order Number
LM2765M6
LM2765M6X
Package
Number
MA06A
MA06A
Package
Marking
S15B (Note 1)
S15B (Note 1)
Supplied as
Tape and Reel (1000 units/reel)
Tape and Reel (3000 units/reel)
Note 1: The small physical size of the SOT-23 package does not allow for the full part number marking. Devices will be marked with the designation shown in
the column Package Marking.
© 2000 National Semiconductor Corporation DS101281
www.national.com

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LM2765M6 pdf
Typical Performance Characteristics (Circuit of Figure 1, VIN = 5V, TA = 25˚C unless otherwise
specified) (Continued)
Output Voltage vs
Load Current
Efficiency vs
Load Current
Switching Frequency vs
Supply Voltage
DS101281-8
Switching Frequency vs
Temperature
DS101281-9
Output Ripple vs
Load Current
DS101281-10
DS101281-11
DS101281-12
5
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