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LINEAR TECHNOLOGY  LT3487EDD#PBF  芯片, 开关稳压器, 2MHz, CCD偏置, 10DFN

LINEAR TECHNOLOGY LT3487EDD#PBF
Technical Data Sheet (289.50KB) EN 查看所有技术文档

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产品概述

The LT3487EDD#PBF is a Boost and Inverting Switching Regulator generates positive and negative outputs for biasing CCD imagers. The boost regulator incorporates output disconnect technology to eliminate the DC current path from VIN to the output load that is present in standard boost configurations. The 2MHz switching frequency allows CCD solutions using tiny, low profile capacitors and inductors and generates low noise outputs that are easy to filter. Schottky diodes are internal and the output voltages are set with one resistor per channel, reducing external component count. Intelligent soft-start allows sequential soft-start of the two channels with a single capacitor. The soft-start is sequenced such that the output ramp of the negative channel begins after the ramp of the positive channel. Internal sequencing circuitry also disables the negative channel until the positive channel has reached 87% of its final value, ensuring that the sum of the two outputs is always positive.
  • Generates 15V at 45mA, -8V at 90mA from a Li-ion cell
  • Output disconnect
  • Positive output reaches regulation before negative channel begins switching
  • Internal Schottky diodes
  • 2MHz Constant switching frequency
  • Requires only one resistor per channel to set output voltages
  • Output voltage up to 28V
  • Short-circuit robust
  • Capacitor programmable soft-start
  • Separate VBAT pin allows separate sources for power and control circuitry

产品信息

输入电压最小值:
2.3V
输入电压最大值:
16V
输出个数:
2输出
直流直流转换器芯片封装:
DFN
针脚数:
10引脚
电流输出 - 输出1:
45mA
电流输出 - 输出2:
90mA
电压输出 - 输出1:
15V
输出电压 - 输出2:
-8V
稳压器输出类型:
固定
开关频率:
2MHz
拓扑结构:
升压, 反相
工作温度最高值:
85°C
封装:
剪切带
产品范围:
-
MSL:
MSL 1 -无限制
SVHC(高度关注物质):
No SVHC (17-Dec-2015)

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应用

  • 信号处理;
  • 发光二极管照明

法律与环境

潮湿敏感级别:
MSL 1 -无限制
原产地:
Malaysia

进行最后一道重要生产流程所在的国家

RoHS 合规:
税则号:
85423990
重量(千克):
.0001