Datasheet

LT3571
16
3571fa
Linear Technology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7417
[phone]
●
FAX: [phone]
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www.linear.com
© LINEAR TECHNOLOGY CORPORATION 2009
LT 0809 REV A • PRINTED IN USA
C1
1µF
MONIN
V
REF
R
T
SHDN
CTRL
GND
SYNC
V
OUT
FB
V
IN
SW
LT3571
MON APD
OFF ON
V
IN
3.3V
R2
18.2k
50V
R
T
26.1k
500kHz
L1: TDK VLF3010AT-100MR49
C1: MURATA X7R GRM21BR71C105KA01B
C2, C3: MURATA X7R GRM188R72A104KA35
R
SENSE
20
3571 TA05a
R3
10k
55V
C2
0.1µF
C3
0.1µF
L1
10µH
R1
1M
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ThinSOT is a trademark of Linear Technology Corporation.
Input Power vs APD Current
Transient Response on Input Signal Falling Edge
(1mA to 10μA)
3.3V to 50V APD Bias Power Supply
50ns/DIV
PWM GND
PWM
1V/DIV
OUT
500mV/DIV
3571 TA05c
T
FD
< 100ns
I
APD
= 10µA
I
APD
= 1mA
OUT GND
FOR TRANSIENT RESPONSE, PLEASE REFER TO FIGURE 4
50ns/DIV
PWM GND
PWM
1V/DIV
OUT
500mV/DIV
3571 TA05d
T
RD
< 100ns
I
APD
= 1mA
I
APD
= 10µA
OUT GND
Transient Response on Input Signal Falling Edge
(10μA to 1mA)
APD CURRENT (mA)
0
INPUT POWER (mW)
450
50
400
300
200
350
250
150
100
0
1 1.5
3571 TA05b
20.5