HA16666P Datasheet, PDF (4/15 Pages) Hitachi Semiconductor – 600kHz PWM Controlled Switching Regulator

HA16666P/FP
Block Diagram
E/I 1
ST 2
C_T 3
R_T1 4
R_T2 5
OSC Out 6
+
+
PWM
comparator
–
S
R
S/R
Flip-flop
+
Over-
current
detector _–
–
Comparator
+
Triangular
waveform
oscillator
1.3 V
Reference
voltage _{5 V}
Undervoltage
lockout
protection
16 N.INV+
15 INV ^–
14 CS
13 Vref
12 V_IN
11 RM
GND 7
Output driver
10 OUT
N.C 8
9 N.C
4