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| 型号： | LT3482EUD#PBF |
| 厂商： | Linear Technology |
| 文件页数： | 1/12页 |
| 文件大小： | 0K |
| 描述： | IC REG BOOST ADJ 0.28A 16QFN |
| 标准包装： | 121 |
| 类型： | 升压（升压） |
| 输出类型： | 可调式 |
| 输出数： | 1 |
| 输出电压： | 1.24 V ~ 90 V |
| 输入电压： | 2.5 V ~ 16 V |
| PWM 型： | 电流模式 |
| 频率 - 开关： | 650kHz ~ 1.1MHz |
| 电流 - 输出： | 280mA |
| 同步整流器： | 无 |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 16-WFQFN 裸露焊盘 |
| 包装： | 管件 |
| 供应商设备封装： | 16-QFN-EP（3x3） |
| 产品目录页面： | 1331 (CN2011-ZH PDF) |
LT3482
90V Boost DC/DC
Converter with APD
Current Monitor
FEATURES
DESCRIPTIO
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High Output Voltage: Up to 90V
Integrated Schottky Diodes
48V, 280mA Internal Switch
High Side APD Current Monitor
Adjustable Switching Frequency: 650kHz or 1.1MHz
Wide V IN Range: 2.5V to 16V
Surface Mount Components
Low Shutdown Current: <1μA
Soft-Start
Internal Compensation
CTRL Pin Allows Output Adjustment with No Polarity
Inversion
3mm × 3mm 16-Lead QFN Package
The LT ? 3482 is a ?xed frequency current mode step-up
DC/DC converter with voltage doubler designed to bias
avalanche photodiodes (APDs) in optical receivers. It can
provide up to 90V output. The LT3482 features high side
APD current monitoring with better than 10% relative ac-
curacy over the entire temperature range. The integrated
power switch, Schottky diodes and APD current monitor
allow a small converter footprint and low solution cost.
Constant switching frequency results in predictable output
noise that is easy to ?lter. The inductor-based topology
ensures an input free from switching noise. An integrated
high side current monitor produces a current proportional
to APD current with better than 10% relative accuracy
APPLICATIO S
over four decades of dynamic range in the input range of
250nA to 2.5mA. This current can be used as a reference
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APD Bias
PIN Diode Bias
Optical Receivers and Modules
Fiber Optic Network Equipment
to provide a digitally programmed output voltage via the
CTRL pin. The LT3482 is available in the tiny footprint
(3mm × 3mm) 16-lead QFN package.
, LT, LTC and LTM are registered trademarks of Linear Technology Corporation.
All other trademarks are the property of their respective owners.
TYPICAL APPLICATIO
V IN
5V
1 μ F
10 μ H
SW
V IN
f SET
0.1 μ F
PUMP
MONIN
LT3482
Output Voltage Ripple
OFF ON
SHDN
CTRL
V OUT2
V OUT1
0.47 μ F
0.47 μ F
0.1 μ F
1M
V APD
RIPPLE
100 V/DIV
GND
FB
MON
APD
85V
AT 2.5mA
14k
10nF
10k
0.1 μ F
3482 TA01a
500ns/DIV
3482 TA01b
3482fa
1
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相关代理商/技术参数 |
参数描述 |
|---|---|
| LT3482EUD-TRPBF | 制造商:LINER 制造商全称:Linear Technology 功能描述:90V Boost DC/DC Converter with APD Current Monitor |
| LT3482IUD#PBF | 功能描述:IC REG BOOST ADJ 0.28A 16QFN RoHS:是 类别:集成电路 (IC) >> PMIC - 稳压器 - DC DC 开关稳压器 系列:- 产品培训模块:MIC23xxx HyperLight Load™ Regulators 标准包装:5,000 系列:HyperLight Load® 类型:降压（降压） 输出类型:固定 输出数:1 输出电压:1.8V 输入电压:2.7 V ~ 5.5 V PWM 型:混合物 频率 - 开关:4MHz 电流 - 输出:2A 同步整流器:是 工作温度:-40°C ~ 125°C 安装类型:表面贴装 封装/外壳:8-VFDFN 裸露焊盘，8-MLF? 包装:带卷 (TR) 供应商设备封装:8-MLF?（2x2） 产品目录页面:1094 (CN2011-ZH PDF) 其它名称:576-3303-2 |
| LT3482IUD#TRPBF | 功能描述:IC REG BOOST ADJ 0.28A 16QFN RoHS:是 类别:集成电路 (IC) >> PMIC - 稳压器 - DC DC 开关稳压器 系列:- 设计资源:Design Support Tool 标准包装:1 系列:- 类型:升压（升压） 输出类型:固定 输出数:1 输出电压:3V 输入电压:0.75 V ~ 2 V PWM 型:- 频率 - 开关:- 电流 - 输出:100mA 同步整流器:是 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:SOT-23-5 细型，TSOT-23-5 包装:剪切带 (CT) 供应商设备封装:TSOT-23-5 其它名称:AS1323-BTTT-30CT |
| LT3482IUD-PBF | 制造商:LINER 制造商全称:Linear Technology 功能描述:90V Boost DC/DC Converter with APD Current Monitor |
| LT3482IUD-TRPBF | 制造商:LINER 制造商全称:Linear Technology 功能描述:90V Boost DC/DC Converter with APD Current Monitor |
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