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LM2767

Features: ·Doubles Input Supply Voltage·SOT23-5 Package·20W Typical Output Impedance·96% Typical Conversion Efficiency at 15mAApplication·Cellular Phones·Pagers·PDAs, Organizers·Operational Amplifier Power Suppliers·Interface Power Suppliers·Handheld InstrumentsPinoutSpecificationsIf Military/Aero...

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SeekIC No. : 004395051 Detail

LM2767: Features: ·Doubles Input Supply Voltage·SOT23-5 Package·20W Typical Output Impedance·96% Typical Conversion Efficiency at 15mAApplication·Cellular Phones·Pagers·PDAs, Organizers·Operational Amplifie...

LM2767 Data Sheet

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Part Number:
LM2767
Supply Ability:
5000

Price Break

  • Qty
  • 1~5000
  • Unit Price
  • Negotiable
  • Processing time
  • 15 Days
Total Cost: $ 0.00

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Upload time: 2024/11/21

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Product Details

Description



Features:

·Doubles Input Supply Voltage
·SOT23-5 Package
·20W Typical Output Impedance
·96% Typical Conversion Efficiency at 15mA




Application

·Cellular Phones
·Pagers
·PDAs, Organizers
·Operational Amplifier Power Suppliers
·Interface Power Suppliers
·Handheld Instruments




Pinout

Connection Diagram




Specifications

If Military/Aerospace specified devices are required,
please contact the National Semiconductor Sales Office/
Distributors for availability and specifications.
Supply Voltage (V+ to GND, or V+ to VOUT).......... 5.8V
VOUT Continuous Output Current ......................30 mA
Output Short-Circuit Duration to GND (Note 3).... 1 sec.
Continuous Power...........................................400 mW
Dissipation (TA = 25)(Note 4)
TJMax(Note 4) .....................................................150

Output Current 15 mA
Input Min Voltage 1.8 Volt
Input Max Voltage 5.5 Volt
Switching Frequency 11 kHz
On/Off Pin No
Efficiency (peak) 96 %
Error Flag No
Sync Pin No
Adj Switch Frequency No
Adjustable Output No
Inverting No
Step-Up Yes
Step-Down No
RegType Switched Capacitor
Temperature Min -40 deg C
Temperature Max 85 deg C
Topology Charge Pump
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Description

The LM2767 CMOS charge-pump voltage converter operates 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 mAof output current.

The LM2767 operates at 11 kHz switching frequency to avoid audio voice-band interference. With an operating current of only 40 A (operating efficiency greater than 90% with most loads), the LM2767 provides ideal performance for battery powered systems. The device is manufactured in a SOT23-5 package.






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