Rainbow Electronics BA9708K - Manual

295
Regulator ICs
3-channel switching regulator
BA9708K
The BA9708K, a 3-channel switching regulator that uses a pulse width modulation (PWM) system, can drive all channel
PNP transistors directly.
F
Applications
VCRs and other portable equipment
F
Features
1) Reference voltage precision is
±
1%.
2) Output stages are based on the push-pull method
(resembling the totem-pole method), and ON / OFF
currents can be set independently.
3) Triangular waves can be externally synchronized.
4) Pins allow ON / OFF control of channel 3 only, or all
channels at once.
F
Absolute maximum ratings (Ta = 25
_
C)
F Recommended operating conditions (Ta = 25 _ C)