Regulator ICs
Switching regulator for DC / DC
converters
BA9701 / BA9701F
The BA9701 and BA9701F are DC / DC converter switching regulators that use a pulse width modulation (PWM) sys-
tem. With an error amplifier, PWM comparator, and output driver, the ICs operate by receiving reference voltage and
triangular wave oscillation from the BA9700A-series regulator.
FFeatures
1) The slave IC operates by receiving reference voltage
and triangular waves from a BA9700-series regula-
tor.
2) Contains error amplifier and PWM comparator ; the
BA9701 is in an 8-pin dual-inline package, and the
BA9701F is in an 8-pin SOP package.
FBlock
diagram
3) Suited for multiple output power supply; superb cost
performance in combination with BA9700A-series
regulators.
4) Voltage output can step up, step down, or invert at an
arbitrary level.
FAbsolute
maximum ratings (Ta = 25_C)
274
1
2
3
4
