LTC3535_15 Datasheet, PDF (8/16 Pages) Linear Technology – Dual Channel 550mA 1MHz Synchronous Step-Up DC/DC Converter

LTC3535
BLOCK DIAGRAM
V_IN1
0.8V
TO 5V
V_IN2
0.8V
TO 5V
C_IN
2.2µF
11 ^SHDN1
4M
L2
4.7µH
C_IN2
2.2µF
SW2
5
7 ^VIN2
SHDN2
8
4M
L1
4.7µH
10 _VIN1
V_OUT
2
SW1
V_BEST
V_B
ANTI-RING
V_SEL
WELL
SWITCH
V_{OUT1 1}
SHUTDOWN SHUTDOWN
V_REF
UVLO
V_REF1
START-UP
1MHz
OSC
CLK1
GATE DRIVERS
AND
ANTI-CROSS
CONDUCTION
I_PK
COMP
I_PK
–+
I_ZERO
Σ
COMP
SLOPE
COMP
FB1
12
I_ZERO
LOGIC
MODE
CONTROL
ERROR AMP
SLEEP COMP
V_REF
CLAMP
THERMAL
TSD
SHUTDOWN
WAKE
C_SS
V_IN2
V_OUT2
V_BEST
V_B
ANTI-RING
V_SEL
WELL
SWITCH
V_{OUT2 4}
SHUTDOWN SHUTDOWN
V_REF
UVLO
V_REF2
START-UP
1MHz
OSC
CLK2
GATE DRIVERS
AND
ANTI-CROSS
CONDUCTION
I_PK
COMP
I_PK
–+
I_ZERO
Σ
COMP
SLOPE
COMP
I_ZERO
LOGIC
MODE
CONTROL
ERROR AMP
SLEEP COMP
V_REF
FB2
9
CLAMP
THERMAL
TSD
SHUTDOWN
WAKE
C_SS
EXPOSED
GND
PAD
GND
3
13
6
3535 BD
V_OUT1
1.5V
TO 5.25V
R2
C_OUT1
10µF
R1
V_OUT2
1.5V
TO 5.25V
R4
C_OUT2
10µF
R3
3535fa
8