NCP1445 ONSEMI [ON Semiconductor], NCP1445 Datasheet - Page 5

• Manufacturer Part Number: NCP1445
• Description: 4.0 A 280 kHz/560 kHz Boost Regulators
• Manufacturer: ONSEMI [ON Semiconductor]

NCP1443/5
NCP1442/4
NFB
V
FB
CC
SS
only
only
250 k
1.276 V
Shutdown
Delay
Timer
2.0 V
200 k
−0.65 V Detector
NCP1442, NCP1443, NCP1444, NCP1445
Regulator
Sync
0.4 V Detector
2.0 V
Negative
Error Amp
+
−
−
+
Positive
Error Amp
Frequency
Figure 2. Block Diagram
Shift 5:1
Shutdown
http://onsemi.com
Thermal
Oscillator
V
C
5
S PWM
Latch
+
R
Slope
Compensation
−
PWM
Comparator
Q
Driver
Ramp
Summer
5
Switch
15 mW
V
GND
SW