LTC3528B Linear Technology Corporation, LTC3528B Datasheet - Page 7

• Manufacturer Part Number: LTC3528B
• Description: 1MHz Synchronous Step-Up DC/DC Converters
• Manufacturer: Linear Technology Corporation

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V
of 1μF ceramic decoupling capacitor from this pin to
ground.
BLOCK DIAGRAM
PIN FUNCTIONS
TO 5V
0.7V
IN
V
IN
(Pin 8): Battery Input Voltage. Connect a minimum
C
4.7μF
IN
1
3
SHDN
PGOOD
4M
SHUTDOWN
PGND
6
+
–
UVLO
V
REF
SHUTDOWN
START-UP
THERMAL
V
FB
1MHz
REF
OSC
– 10%
V
SHUTDOWN
REF
V
OUT
V
BEST
UVLO
TSD
CLK
8
V
IN
V
B
GATE DRIVERS
CONDUCTION
ANTI-CROSS
LOGIC
AND
4.7μH
L1
ANTI-RING
SGND
V
SEL
7
I
PK
ZERO
Exposed Pad (Pin 9): The Exposed Pad must be soldered
to the PCB ground plane. It serves as another ground
connection and as a means of conducting heat away
from the die.
COMP
(LTC3528)
CONTROL
PK
MODE
BURST
WAKE
5
SW
–
+
Σ
SLOPE
COMP
CLAMP
SWITCH
–
WELL
LTC3528/LTC3528B
SOFT-START
+
I
COMP
ZERO
SLEEP COMP
ERROR AMP
EXPOSED
+
–
PAD
9
V
FB
REF
V
OUT
FB
3528 BD
4
2
R2
R1
C
10μF
V
1.6V
TO 5.25V
OUT
OUT
3528fa
7