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LM2665

Features: `Doubles or Splits Input Supply Voltage`SOT23-6 Package`12W Typical Output Impedance`90% Typical Conversion Efficiency at 40 mA`1A Typical Shutdown CurrentApplication·Cellular Phones·Pagers·PDAs·Operational Amplifier Power Suppliers·Interface Power Suppliers·Handheld InstrumentsSpecifica...

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SeekIC No. : 004394961 Detail

LM2665: Features: `Doubles or Splits Input Supply Voltage`SOT23-6 Package`12W Typical Output Impedance`90% Typical Conversion Efficiency at 40 mA`1A Typical Shutdown CurrentApplication·Cellular Phones·Pager...

LM2665 Data Sheet

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Part Number:
LM2665
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: 2024/4/27

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Product Details

Description



Features:

`Doubles or Splits Input Supply Voltage
`SOT23-6 Package
`12W Typical Output Impedance
`90% Typical Conversion Efficiency at 40 mA
`1A Typical Shutdown Current




Application

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




Specifications

Output Current 40 mA
Input Min Voltage 1.8 Volt
Input Max Voltage 5.8 Volt
Switching Frequency 160 kHz
On/Off Pin Yes
Efficiency (peak) 91 %
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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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 GND to OUT).......... 5.8V
SD .....................................(GND − 0.3V) to (V+ + 0.3V)
V+ and OUT Continuous Output Current ............50 mA
Output Short-Circuit Duration to GND (Note 2) ....1 sec.
Continuous Power............................................600 mW
Dissipation (TA = 25)(Note 3)
TJMax(Note 3) .....................................................150
qJA (Note 3) ...................................................210/W
Operating Junction..................................−40 to 85
Temperature Range
Storage Temperature Range .............−65 to +150
Lead Temp. (Soldering, 10 seconds) ..................300
ESD Rating ............................................................2kV




Description

The LM2665 CMOS charge-pump voltage converter operates as a voltage doubler for an input voltage in the range of +2.5V to +5.5V. Two low cost capacitors and a diode (needed during start-up) are used in this circuit to provide up to 40 mA of output current. The LM2665 can also work as a voltage divider to split a voltage in the range of +1.8V to +11V in half.

The LM2665 operates at 160 kHz oscillator frequency to reduce output resistance and voltage ripple. With an operating current of only 650 A (operating efficiency greater than 90% with most loads) and 1A typical shutdown current, the LM2665 provides ideal performance for battery powered systems. The device is in SOT-23-6 package.






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