LTC3626_15 Datasheet, PDF (10/28 Pages) Linear Technology – 20V, 2.5A Synchronous Monolithic Step-Down Regulator with Current and Temperature Monitoring

LTC3626
Functional Diagram
R_IN
C_IN2
C_IN
160k
V_ON
A_V = 1
RUN
1.25V
RUN
PV_{IN 0.72V}
6V
RUN
RT
R_RT
OSC
I_ON
I_ON
CONTROLLER
MODE/SYNC OSC
PLL-SYNC
t_ON =
V_VON
I_ION
I_CMP
R
ON
SQ
I_REV
–+
SWITCH
LOGIC
AND
ANTI-
SHOOT-
THROUGH
COMP
SELECT
ITH
R_COMP
C_COMP
IMON_OUT
IMON_IN
PGOOD
–+
1.2V
0.648V
DUTY
OV
CYCLE
EA
OUTPUT
CURRENT
MONITOR
SV_IN
PV_IN
3.3V
REG
INTV_CC
BOOST
TG
M1
SW
BG
M2
PGND
SENSE^–
SENSE⁺
C_INTVCC
C_BST
L
C_OUT
R1
FB
IDEAL
R2
DIODES
0.6V
REF
INTERNAL
SOFT-START
INTV_CC
1.4µA
C_SS
TRACK/SS
SGND
10
TRACK –
UV
0.552V
SS
+
MODE/SYNC
0.48V AT START-UP
0.10V AFTER START-UP
+
T_J
1V/200k
+
–
–
TMON TSET
BURST FC _MODE
SELECT
TEMP
FAULT
CONTROL
For more information www.linear.com/LTC3626
3626 BD
3626fa