LTC3548-1 Datasheet, PDF (6/16 Pages) Linear Technology – Dual Synchronous, Fixed Output 2.25MHz Step-Down DC/DC Regulator

LTC3548-1
BLOCK DIAGRAM
REGULATOR 1
V_IN
V_OUT1 2
V_FB1 1
0.6V
+
I_TH
EA
–
R1 ^VFB
R3 ^0.55V –
UV
UVDET
+
+
OV
OVDET
0.65V
–
SHUTDOWN
SLOPE
COMP
0.35V
–
EN
BURST
+
SLEEP
BURST
CLAMP
–+
I_COMP
S
Q
RS
LATCH
R
Q
SWITCHING
LOGIC
AND
BLANKING
CIRCUIT
ANTI
SHOOT-
THRU
I_RCMP
RUN1 8
RUN2 6
0.6V REF
OSC
OSC
V_OUT2 9
V_FB2 10
REGULATOR 2 (IDENTICAL TO REGULATOR 1)
R1 = 240k, R3 = 120k FOR REGULATOR 1
R1 = 195k, R3 = 120k FOR REGULATOR 2
V_IN
5Ω
4 SW1
11 GND
V_IN
3 V_IN
5 GND
7 SW2
3548-1 BD
35481fb
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