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427

Regulator ICs

Two-channel switching regulator

controller

BA9741F / BA9741FS

The BA9741F and BA9741FS are two-channel switching regulator controllers that use the PWM method. Both circuits

can be used for DC to DC conversion for step-up, step-down, and inverting. The IC comes in a compact package, making

it ideal for use in portable equipment.

Applications

DC/DC converters for video cameras and notebook computers etc.

Features

1) High-accuracy reference voltage circuit (±1%).

2) Timer-latch, short-circuit protection circuit

3) Miss-operation prevention circuit for low-voltage in-

put.

4) Reference voltage with output (2.5V).

5) Rest period adjustment is possible over the entire

duty range.

Absolute maximum ratings (Ta = 25C)

Recommended operating conditions (Ta = 25C)

1 2 3 4 5

Indice de contenidos

Pagina 1 - BA9741F / BA9741FS

427Regulator ICsTwo-channel switching regulatorcontrollerBA9741F / BA9741FSThe BA9741F and BA9741FS are two-channel switching regulator controllers th

Pagina 2 - Pin descriptions

428Regulator ICs BA9741F / BA9741FSBlock diagramPin descriptions

Pagina 3 - CC = 6V)

429Regulator ICs BA9741F / BA9741FSElectrical characteristics (unless otherwise noted, Ta = 25C, and VCC = 6V)

Pagina 4

430Regulator ICs BA9741F / BA9741FSTiming chartElectrical characteristic curves

Pagina 5

External dimensions (Units: mm)431Regulator ICs BA9741F / BA9741FS

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Rainbow-electronics BA9741F Manual de usuario

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