sc286ultrt Semtech Corporation, sc286ultrt Datasheet - Page 6

• Manufacturer Part Number: sc286ultrt
• Description: Dual Channel 4a Synchronous Step-down Regulator
• Manufacturer: Semtech Corporation

Block Diagram
VOUTA
AGNDA
VOUTB
AGNDB 17
CTL2B
CTL2A
CTL1B
CTL0A
CTL1A
CTL3A
CTL0B 19
CTL3B 22
AVINA
AVINB
SSA
SSB
20
21
11
10
18
25
24
5
6
7
8
4
3
Slope Generator
Slope Generator
Oscillator and
Oscillator and
Voltage
Voltage
Select
Select
NOTES:
A = Pins 1,2
B = Pins 27, 28
Error Amp
Error Amp
500mV
500mV
Plimit Amp
Ref
Plimit Amp
Ref
c
c
Comp
Comp
PWM
PWM
C = Pins 15, 16
D = Pins 13, 14
Current Amp
Current Amp
PGOOD Detector
PGOOD Detector
Control
Control
Logic
Logic
Delay
Delay
12
23
26
C
A
D
B
9
LXA
PGNDA
PGOODA
PVINB
LXB
PGNDB
PGOODB
PVINA
SC286
6