ADP1621 Selling Leads, Price trend, ADP1621 DataSheet download, circuit diagram from SeekIC.com

Features: `92% efficiency (no sense resistor required)`±1.0% initial accuracy`IC supply voltage range: 2.9 V to 5.5 V`Power-input voltage as low as 1.0 V`Capable of high supply input voltage (>5.5 V) with an external NPN or a resistor`VIN UVLO and 35 mA shunt regulator`External slope compensati...

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SeekIC No. : 004276316 Detail

ADP1621: Features: `92% efficiency (no sense resistor required)`±1.0% initial accuracy`IC supply voltage range: 2.9 V to 5.5 V`Power-input voltage as low as 1.0 V`Capable of high supply input voltage (>5....

ADP1621 Data Sheet

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Part Number:: ADP1621
Supply Ability:: 5000

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Upload time: 2024/11/21

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Product Details

Description

Features:

`92% efficiency (no sense resistor required)
`±1.0% initial accuracy
`IC supply voltage range: 2.9 V to 5.5 V
`Power-input voltage as low as 1.0 V
`Capable of high supply input voltage (>5.5 V) with an external NPN or a resistor
`VIN UVLO and 35 mA shunt regulator
`External slope compensation with 1 resistor
`Programmable operating frequency (100 kHz to 1.5 MHz) with 1 resistor
`Lossless current sensing for switch-node voltage <30 V
`Resistor current sensing for switch-node voltage >30 V
`Synchronizable to external clock
`Current-mode operation for excellent line and load transient responses
`10 A shutdown current
`Current limit and thermal overload protection
`Soft start in 2048 clock cycles

Application

·APD bias
·Portable electronic equipment
·Isolated dc/dc converter
·Step-up/step-down dc/dc converter
·LED driver for laptop computer and navigation system
·LCD backlighting

Pinout

ADP1621 Diagram

Specifications

Vin Range	2.9V-5.5V
Vout	n/a
Step Up	Yes

Shutdown	Y
Pkg	MSOP-10

Description

The ADP1621 is a fixed-frequency, pulse-width modulation (PWM), current-mode, step-up converter controller. It drives an external n-channel MOSFET to convert the input voltage to a higher output

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ADP1621

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