LTC3882_15 Datasheet, PDF (16/104 Pages) Linear Technology – Dual Output PolyPhase Step-Down DC/DC Voltage Mode Controller with Digital Power System Management

LTC3882
OPERATION
MODE
OSCILLATOR
CLOCK
RQ
S
0V
PWM
LOGIC
RAMP
VC
VINSNS
4
FEED
FORWARD
+
S
SLAVE
ENABLE
SLAVE
DETECT
OV
V_{OC0 8-BIT DAC}
I_LIM
LTC3882
V_IN
TG0
7
BG0
6
GATE
DRIVER
IOUT_OC_FAULT_LIMIT
V_REV
I_REV
MASTER
ENABLE
V_{OV0 9-BIT DAC}
I_SENSE0+
R_S
38
CA
I_SENSE0–
C_S
37
I_AVG0
39
I_{AVG_GND}
5
VOUT_OV_FAULT_LIMIT
L1
V_OUT
C_OUT
16
UV
V_{UV0 9-BIT DAC}
VOUT_UV_FAULT_LIMIT
V_SENSE0+
36
EA
V_{SP0 12-BIT DAC}
9R
(RANGE 0)
VOUT_COMMAND
FB0
40
2R _{VSENSE0–}
35
LOOP
COMPENSATION
NETWORK
COMP0
1
3882 F01
Figure 1. LTC3882 PWM Control Loop Diagram
3882f
For more information www.linear.com/LTC3882