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LM2767M5X Datasheet

  • LM2767M5X

  • Switched Capacitor Voltage Converter

  • 9頁(yè)

  • NSC

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LM2767 Switched Capacitor Voltage Converter
February 2000
LM2767
Switched Capacitor Voltage Converter
General Description
The LM2767 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 at least 15 mA of output current.
The LM2767 operates at 11 kHz switching frequency to
avoid audio voice-band interference. With an operating cur-
rent of only 40 碌A(chǔ) (operating efficiency greater than 90% with
most loads), the LM2767 provides ideal performance for bat-
tery powered systems. The device is manufactured in a
SOT23-5 package.
Features
n
n
n
n
Doubles Input Supply Voltage
SOT23-5 Package
20鈩?Typical Output Impedance
96% Typical Conversion Efficiency at 15mA
Applications
n
n
n
n
n
n
Cellular Phones
Pagers
PDAs, Organizers
Operational Amplifier Power Suppliers
Interface Power Suppliers
Handheld Instruments
Basic Application Circuit
Voltage Doubler
DS101274-1
Ordering Information
Order Number
LM2767M5
LM2767M5X
Package
Number
MA05B
MA05B
Package
Marking
S17B (Note 1)
S17B (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.
漏 2000 National Semiconductor Corporation
DS101274
www.national.com

LM2767M5X 產(chǎn)品屬性

  • 3,000

  • 集成電路 (IC)

  • PMIC - 穩(wěn)壓器 - DC DC 開(kāi)關(guān)穩(wěn)壓器

  • -

  • 切換式電容器（充電泵），倍增器

  • 可調(diào)式

  • 1

  • 3.6 V ~ 11 V

  • 1.8 V ~ 5.5 V

  • -

  • 11kHz

  • 15mA

  • 無(wú)

  • -40°C ~ 85°C

  • 表面貼裝

  • SC-74A，SOT-753

  • 帶卷 (TR)

  • SOT-23-5

  • *LM2767M5X

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