Datasheet

LTC3630A
8
3630afa
For more information www.linear.com/LTC3630A
block DiagraM
C
OUT
C
IN
V
OUT
+
–
+
–
+
3
–
+
–
+
+
PEAK CURRENT
COMPARATOR
REVERSE CURRENT
COMPARATOR
FEEDBACK
COMPARATOR
VOLTAGE
REFERENCE
V
PRG2
GND
GND
SS
SS
V
PRG1
GND
SS
GND
SS
R1
1.0M
4.2M
2.5M
1.0M
R2
∞
800k
800k
800k
V
OUT
ADJUSTABLE
5V FIXED
3.3V FIXED
1.8V FIXED
START-UP: 50µA
NORMAL: 5µA
IMPLEMENT DIVIDER
EXTERNALLY FOR
ADJUSTABLE VERSION
V
IN
V
IN
1
SW
L1
GND
LOGIC
AND
SHOOT-
THROUGH
PREVENTION
16
SS
R2
R1
5V
5V
20µA
FBO
70Ω
10
12
GND
8
14
GND
17
V
FB
9
V
PRG1
7
V
PRG2
3630a BD
6
0.800V
1.21V
RUN
2M
5V
I
SET
11
ACTIVE: 5µA
SLEEP: 1µA
SLEEP, ACTIVE: 2µA
SHUTDOWN: 0µA
1.3V
5