参数资料
型号: LT3571IUD#TRPBF
厂商: Linear Technology
文件页数: 16/16页
文件大小: 0K
描述: IC REG BOOST ADJ 0.47A 16QFN
产品培训模块: APD Biasing
标准包装: 2,500
类型: 升压(升压)
输出类型: 可调式
输出数: 1
输出电压: 最高 75V
输入电压: 2.7 V ~ 20 V
PWM 型: 电流/电压模式
频率 - 开关: 250kHz ~ 2MHz
电流 - 输出: 470mA
同步整流器:
工作温度: -40°C ~ 125°C
安装类型: 表面贴装
封装/外壳: 16-WFQFN 裸露焊盘
包装: 带卷 (TR)
供应商设备封装: 16-QFN-EP(3x3)
LT3571
TYPICAL APPLICATIONS
3.3V to 50V APD Bias Power Supply
L1
450
Input Power vs APD Current
V IN
10μH
400
3.3V
OFF ON
V IN
SHDN
SW
V OUT
350
300
C1
1μF
V REF
CTRL
LT3571
MONIN
55V
R SENSE
20Ω
250
200
R T
SYNC
FB
R1
1M
C2
0.1μF
150
100
R T
26.1k
500kHz
GND
MON
R3
10k
APD
50V
R2
18.2k
C3
0.1μF
3571 TA05a
50
0
0
0.5 1 1.5
APD CURRENT (mA)
2
3571 TA05b
L1: TDK VLF3010AT-100MR49
C1: MURATA X7R GRM21BR71C105KA01B
C2, C3: MURATA X7R GRM188R72A104KA35
Transient Response on Input Signal Falling Edge
(1mA to 10μA)
PWM GND
Transient Response on Input Signal Falling Edge
(10μA to 1mA)
PWM GND
PWM
1V/DIV
I APD = 1mA
I APD = 10μA
PWM
1V/DIV
I APD = 10μA
I APD = 1mA
OUT
OUT
500mV/DIV
OUT GND
T FD < 100ns
500mV/DIV
OUT GND
T RD < 100ns
50ns/DIV
3571 TA05c
50ns/DIV
3571 TA05d
FOR TRANSIENT RESPONSE, PLEASE REFER TO FIGURE 4
RELATED PARTS
PART NUMBER
DESCRIPTION
COMMENTS
LT1930/LT1930A 1A(I SW ), 1.2MHz/2.2MHz High Ef?ciency Step-Up
DC/DC Converters
LT3460/LT3460-1 0.3A (I SW ), 1.3MHz, 650kHz High Ef?ciency Step-Up
DC/DC Converters
LT3461/LT3461A 0.3A (I SW ), 1.3MHz/3MHz High Ef?ciency
Step-Up DC/DC Converters with Integrated Schottky
V IN : 2.6V to 16V, V OUT(MAX) = 34V, I Q = 4.2mA/5.5mA, I SD <1μA,
ThinSOT? Package
V IN : 2.5V to 16V, V OUT(MAX) = 38V, I Q = 2mA, I SD <1μA, SC70 and ThinSOT
Packages
V IN : 2.5V to 16V, V OUT(MAX) = 38V, I Q = 2.8mA, I SD <1μA, ThinSOT Package
LT3482
0.3A (I SW ), 650k/1.1MHz Step-Up DC/DC Converter
with APD Current Monitor
V IN : 2.5V to 16V, V OUT1(MAX) = 48V, V OUT2(MAX) = 90V, I Q = 3.3mA, I SD <1μA,
3mm × 3mm QFN Package
ThinSOT is a trademark of Linear Technology Corporation.
3571fa
16 Linear Technology Corporation
(408) 432-1900 ● FAX: (408) 434-0507 www.linear.com
1630  McCarthy  Blvd.,  Milpitas,  CA  95035-7417
LT 0809 REV A ? PRINTED IN USA
? LINEAR TECHNOLOGY CORPORATION 2009
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