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GM3326

Features: `Input Voltage Range : 2.0V ~ 10V`Output Voltage Range : 2.4V ~ 6.0V ( ± 2.5% accuracy) (selectable in 0.1V steps)`Oscillation Frequency : 300KHz ( ± 15% accuracy)`Output Current : more than 250mA (VIN=2.4V,`VOUT=3.3V)`Efficiency : 81% (typ) at 5.0V, 78% (typ) at 3.3V`Stand-By : ISTB = 0...

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SeekIC No. : 004354077 Detail

GM3326: Features: `Input Voltage Range : 2.0V ~ 10V`Output Voltage Range : 2.4V ~ 6.0V ( ± 2.5% accuracy) (selectable in 0.1V steps)`Oscillation Frequency : 300KHz ( ± 15% accuracy)`Output Current : more th...

GM3326 Data Sheet

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Part Number:
GM3326
Supply Ability:
5000

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

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Product Details

Description



Features:

`Input Voltage Range : 2.0V ~ 10V
`Output Voltage Range : 2.4V ~ 6.0V ( ± 2.5% accuracy) (selectable in 0.1V steps)
`Oscillation Frequency : 300KHz ( ± 15% accuracy)
`Output Current : more than 250mA (VIN=2.4V,
`VOUT=3.3V)
`Efficiency : 81% (typ) at 5.0V, 78% (typ) at 3.3V
`Stand-By : ISTB = 0.5A (max)
`Output Voltage Internal Set-Up
`SOT-25 Package


Application

·Mobile phones
·PDAs
·Palmtop computers
·Portable audio equipment
·Various power supplies


Specifications

PARAMETER SYMBOL RATINGS UNITS
VDD Pin Voltage VDD -0.3 ~ 12 V
VOUT Pin Voltage VOUT -0.3 ~ 12 V
CE Pin Voltage VCE -0.3 ~ 12 V
EXT/ Pin Voltage VEXT/ -0.3 ~ VDD +0.3 V
EXT/ Pin Current IEXT/ ± 100 mA
Power Dissipation PD 150
mW
Operating Ambient Temp. TOPR -40 to + 85 °C
Storage Temp. TSTG -40 to +125 °C



Description

The GM3326 series are step-up/down DC/DC converter controller ICs with fast, low ON resistance drivers built-in. A versatile, large output current, step-up/ down DC/DC converter can be realised using only 4 basic external components - transistors, coils, diodes and capacitors. Output voltage of GM3326 is selectable in 0.1V steps within a 2.4V ~ 6.0V ( ± 2.5% accuracy) range and switching frequency is set at or 300KHz.

The GM3326 series switches from PWM to PFM control during light loads and the series offers high efficiencies from light loads through to large output currents. Soft-start time is internally set to 10 msec which offers protection against rush currents when the power is switched on and also against voltage overshoot. During shutdown (CE pin = L), consumption current of GM3326 can be reduced to as little as 0.5A or less.




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