Datasheet

LTC3115-1
12
31151fb
For more information www.linear.com/LTC3115-1
block DiagraM
Pin numbers are shown for the DHD package only.
CURRENT
LIMIT
+
–
3A
DA
PGND
CB
PV
OUT
REVERSE
CURRENT
LIMIT
+
–
–1.5A
ZERO
CURRENT
+
–
0A
3
V
IN
PV
CC
*
10
11
BST2
12
BST1
13
V
CC
*
V
CC
V
IN
V
IN
2.4V
0.5µA
9
SW2
2
GATE
DRIVES
PGND
SOFT-START
RAMP
1000mV
SW1
15
PV
IN
14
FB
7
VC
REVERSE
BLOCKING
LDO
BANDGAP
REFERENCE
OVERTEMPERATURE
OSCILLATOR
MODE
SELECTION
1000mV
1.21V
PWM
CHIP
ENABLE
EXPOSED
PAD
BURST/PWM
(PWM MODE IF PWM/SYNC
IS HIGH OR SWITCHING)
V
IN
÷
+
+
–
6
RT
8
PWM/SYNC
*PV
CC
AND V
CC
MUST BE CONNECTED TOGETHER IN THE APPLICATION
THE EXPOSED PAD IS AN ELECTRICAL CONNECTION AND MUST BE SOLDERED
TO THE BOARD AND ELECTRICALLY CONNECTED TO GROUND
16
INPUT UVLO
+
–
1.21V
PGND
GND
+
–
2.4V
V
CC
UVLO
+
–
RUN
3115 BD
1
174
GND
5
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