HA16107P Datasheet, PDF (27/40 Pages) Hitachi Semiconductor – PWM Switching Regulator for High-performance Voltage Mode Control

HA16107P/FP, HA16108P/FP
40
30
20
10
0
500
0
−500
Vout Output Rising Waveform
200 ns/div
Test circuit
Current probe ^VIN
Ta = 25°C
R_T1 = R_T2 = 27 kΩ
C_T = 470 pF
f_OSC = 100 kHz
C_L
1000 pF
I_O
TL
OUT
CL (+)
27 kΩ
R _T1
470 pF
C_T S_T
R_T2 Vref
+ _{1 µF}
C_ST
+ _{1 µF}
27 kΩ
* Current probe: Tektronix AM503
40
30
20
10
0
500
0
−500
Vout Output Falling Waveform
200 ns/div
Rev.4.00 Jun 15, 2005 page 27 of 39