LTC3114-1_15 Datasheet, PDF (8/34 Pages) Linear Technology – 40V, 1A Synchronous Buck-Boost DC/DC Converter with Programmable Output Current

LTC3114-1
BLOCK DIAGRAM
V_IN
PV_IN
MA
SW1
INDUCTOR
I_SENSE
LDO ^4.4V
PLDO
REVERSE
BLOCKING
LDO
MB
PGND
–
+
0.1A
I_ZERO
SW2
MD
MC
PGND
10µA
PV_OUT
OUTPUT
CURRENT
SENSE
BST1
BST2
MODE
RUN
+
1.2V –
V_IN +
2.1V –
LDO +
2.5V –
PGND
LTC3114-1
GATE DRIVERS
PWM
AVERAGE
CURRENT
AMP
1.2MHz OSCILLATOR
SOFT-START
1V
BIAS GENERATOR
BANDGAP REFERENCE POR
OVERTEMPERATURE PROTECTION
VOLTAGE
ERROR
AMP
I_OUT
25k
PROG
1V
FB
1V
VC
GND
31141 BD
31141fa
8
For more information www.linear.com/LTC3114-1