LTC3737_15 Datasheet, PDF (7/24 Pages) Linear Technology – Dual 2-Phase, No RSENSE, DC/DC Controller with Output Tracking

W
FU CTIO AL DIAGRA
LTC3737
V_IN
C_IN
M1
L1
D1
C_OUT
V_OUT1
V_IN
SENSE1⁺
IPROG1
PV_IN1
SW1
VOLTAGE
V_REF
REFERENCE 0.6V
UNDERVOLTAGE ^UV
LOCKOUT
CMSD
V_IN
UVSD
SLOPE1
–
I_CMP
+
V_IN
0.7µA
RUN/SS
C_SS
t = 1ms
INTERNAL
SOFT-START
EXTSS
–
INTSS ^{+ MUX}
+
0.3V
SOFT-
START
CLK1
S
Q
R
SWITCHING
LOGIC AND
BLANKING
CIRCUIT
+
0.15V
–
SLEEP1
BURSTDIS
OV1
OVP
SC1
SCP
PGOOD1
OV1
PGATE1
PGND
0.68V
V_FB
0.12V
I_TH1
0.54V
BURST DEFEAT
SYNC/MODE
CLOCK DETECT
PLLLPF
BURSTDIS
PHASE
DETECTOR
V_IN
PGOOD
VOLTAGE
CONTROLLED CLK1
OSCILLATOR
CLK2
SLOPE
COMP
SLOPE1
SLOPE2
PGOOD1
PGOOD2
DUPLICATE FOR SECOND CHANNEL
V_REF = 0.6V
V_FB2
TRACK
R2B
R2A
V_OUT2
–
+ EAMP2
+
I_TH1
I_TH2
EAMP1
V_FB1
V_REF = 0.6V
SOFT-START
SGND
UVSD
R1B R_TRACKB
R_C
C_C
R1A
R_TRACKA
3737 BD
3737fa
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