ncp1570d ON Semiconductor, ncp1570d Datasheet - Page 5

• Manufacturer Part Number: ncp1570d
• Description: Low Voltage Synchronous Buck Controller
• Manufacturer: ON Semiconductor

COMP
GND
V
V
CC
FB
+
−
8.5 V/7.5 V
0.525 V
+
−
+
−
−
−
+
0.985 V
+
0.89 V/0.69 V
−
+
−
+
UVLO COMP
Σ
Error Amp
80%, 200 kHz
+
−
Art Ramp
PGDELAY Latch
Set Dominant
0.25 V
S
R
−
+
0.25 V
Q
+
−
OSC
PWM COMP
Figure 2. Block Diagram
+
−
http://onsemi.com
5
Set Dominant
Reset Dominant
Fault Latch
S
R
PWM Latch
R
S
+
−
Q
Q
+
−
3.3 V
−
+
Non
Overlap
12 μA
V
CC
GATE(H)
GATE(L)
PGDELAY
PWRGD