Low

LINEAR TECHNOLOGY  LTC1700EMS#PBF  直流/直流控制器, 电流模式, 900mV至5V, 1路输出, 同步升压, 680kHz, MSOP-10

LINEAR TECHNOLOGY LTC1700EMS#PBF
Technical Data Sheet (201.03KB) EN 查看所有技术文档

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产品概述

The LTC1700EMS#PBF is a current-mode synchronous step-up DC/DC Controller drives external N-channel and P-channel power MOSFETs using a constant frequency PWM architecture. Current limiting is provided by sensing the voltage drop across the main MOSFET, eliminating the need of a sense resistor. This No RSENSE technique helps the LTC1700 maintain high efficiency at heavy loads while Burst Mode operation ensures high efficiency at light loads, thus providing high efficiencies over a wide range of load currents. It operates at a minimum input voltage as low as 0.9V. The device boasts a ±1.5% output voltage accuracy and consumes only 200µA of quiescent current. In shutdown, it only draws 10µA. To prevent inductor current runaway, the duty cycle is limited to 90%. Overvoltage protection is also provided which shuts both the external MOSFETs off when tripped. High constant operating frequency of 530kHz allows the use of small inductors and output capacitors.
  • No current sense resistor required
  • OPTI-LOOP® Compensation minimizes COUT
  • Selectable Burst Mode® operation
  • Current mode operation for excellent line and load transient response
  • Soft-start reduces supply current transients
  • 1.5% Output voltage accuracy
  • Uses low value, small size, surface mount inductors

产品信息

电源电压最小值:
900mV
电源电压最大值:
5V
输出个数:
1输出
占空比 (%):
92%
控制器芯片封装类型:
MSOP
针脚数:
10引脚
开关频率:
680kHz
拓扑结构:
同步升压 (升压)
工作温度最小值:
-40°C
工作温度最高值:
85°C
封装:
剪切带
产品范围:
-
汽车质量标准:
-
MSL:
MSL 1 -无限制
SVHC(高度关注物质):
No SVHC (17-Dec-2015)

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应用

  • 无线;
  • 通信与网络;
  • 消费电子产品;
  • 便携式器材;
  • 电源管理;
  • 射频通信

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):
.000254

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