01W038A
5-channel switching regulator controller
BD9731KV
Description BD9731KV is a PWM switching regulator controller IC.
The 5-channel (4 channel for step-up, and 1 channel for step-down) switching regulator controllers are integrated into a VQFP48 package.
This IC can operate both Bipolar and MOS transistor.
Triangle wave oscillator, reference
voltage, PWM comparator,
CMOS type driver, and short protection circuit are integrated.
Dimension (Units : mm)
9.
0±0.
3 7.
0±0.
2 36 9.
0±0.
3 7.
0±0.
2 37 48 1 1.
425±0.
1 0.
10 25 24 13 12 0.
4 0.
15±0.
1 0.
10
0.
5
0.
2±0.
1
Features 1) Can operate both external transistors of Bipolar and MOS.
(Base current can be set by resistance.
) 2) Built-in outpu...