Datasheet Summary
01W038A
5-channel switching regulator controller
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 parator, 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
0.2±0. 1
Features
1) Can operate both external transistors of Bipolar and MOS. (Base current can be set by resistance.) 2) Built-in...