LTC3704 Datasheet, PDF (7/28 Pages) Linear Technology – Wide Input Range, No RSENSE Positive-to-Negative DC/DC Controller

BLOCK DIAGRA
LTC3704
FREQ
4
MODE/SYNC
5
NFB _200k
3
0.62V
V-TO-I
200k
–
BUFFER
+
1.230V
I_TH
2
INTV_CC
8
– ^EA
g_m
+
5.2V
LDO
2.00V
– ^UV
+
SLOPE
COMPENSATION
OSC
I_OSC
50k
0.30V
+
–
BURST
COMPARATOR
BIAS AND
START-UP
CONTROL
S
Q
R
PWM LATCH
C2
100mV
HYSTERESIS
(1.348V RISING)
RUN
1
1.248V
V_IN
9
LOGIC
INTV_CC
GATE
7
GND
SENSE
10
C1
CURRENT
COMPARATOR
1.230V
V-TO-I
SLOPE
TO
START-UP
BIAS
CONTROL
I_LOOP
1.230V
V_REF
R_LOOP
GND
6
3704 BD
V_IN
sn3704 3704fs
7