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LM2757

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具有输出（停机时）的开关电容器升压稳压器

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数据表

LM2757

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产品详情

Iout (max) (A) 0.18 Vin (min) (V) 2.7 Vin (max) (V) 5.5 Type Charge pump Switching frequency (min) (kHz) 932 Switching frequency (max) (kHz) 1552 Features Enable, Load Disconnect Vout (min) (V) 4.87 Vout (max) (V) 5.13 Rating Catalog Operating temperature range (°C) -30 to 85 Iq (typ) (A) 0.0024
Iout (max) (A) 0.18 Vin (min) (V) 2.7 Vin (max) (V) 5.5 Type Charge pump Switching frequency (min) (kHz) 932 Switching frequency (max) (kHz) 1552 Features Enable, Load Disconnect Vout (min) (V) 4.87 Vout (max) (V) 5.13 Rating Catalog Operating temperature range (°C) -30 to 85 Iq (typ) (A) 0.0024
DSBGA (YFQ) 12 2.52000000000000018 mm² 1.8 x 1.4000000000000001
  • Dual Gain Converter (2×, 3/2×) With up to 93%
    Efficiency
  • Inductorless Solution Uses Only 4 Small Ceramic
    Capacitors
  • Total Solution Area < 12 mm2
  • True Input-Output and Output-Input Disconnect
  • Up to 180-mA Output Current Capability (5 V)
  • Selectable 4.1-V, 4.5-V or 5-V Output
  • Pre-Regulation Minimizes Input Current Ripple
  • 1.24-MHz Switching Frequency for Low-Noise,
    Low-Ripple Output Voltage
  • Integrated Overcurrent and Thermal Shutdown
    Protection
  • Dual Gain Converter (2×, 3/2×) With up to 93%
    Efficiency
  • Inductorless Solution Uses Only 4 Small Ceramic
    Capacitors
  • Total Solution Area < 12 mm2
  • True Input-Output and Output-Input Disconnect
  • Up to 180-mA Output Current Capability (5 V)
  • Selectable 4.1-V, 4.5-V or 5-V Output
  • Pre-Regulation Minimizes Input Current Ripple
  • 1.24-MHz Switching Frequency for Low-Noise,
    Low-Ripple Output Voltage
  • Integrated Overcurrent and Thermal Shutdown
    Protection

The LM2757 is a constant-frequency pre-regulated switched-capacitor charge pump that operates at 1.25 MHz to produce a low-noise regulated output voltage. The device can be configured to provide up to 100 mA at 4.1 V, 110 mA at 4.5 V, or 180 mA at 5 V. Excellent efficiency is achieved without the use of an inductor by operating the charge pump in a gain of either 3/2 or 2 according to the input voltage and output voltage option selection.

The LM2757 presents a high impedance at the VOUT pin when shut down. This allows for use in applications that require the regulated output bus to be driven by another supply while the LM2757 is shut down.

The LM2757 device comes in a tiny 12-pin 0.4-mm pitch DSBGA package. A perfect fit for space-constrained, battery-operated applications, the device requires only 4 small, inexpensive ceramic capacitors. Built-in soft-start, overcurrent protection, and thermal shutdown features are also included in this device.

The LM2757 is a constant-frequency pre-regulated switched-capacitor charge pump that operates at 1.25 MHz to produce a low-noise regulated output voltage. The device can be configured to provide up to 100 mA at 4.1 V, 110 mA at 4.5 V, or 180 mA at 5 V. Excellent efficiency is achieved without the use of an inductor by operating the charge pump in a gain of either 3/2 or 2 according to the input voltage and output voltage option selection.

The LM2757 presents a high impedance at the VOUT pin when shut down. This allows for use in applications that require the regulated output bus to be driven by another supply while the LM2757 is shut down.

The LM2757 device comes in a tiny 12-pin 0.4-mm pitch DSBGA package. A perfect fit for space-constrained, battery-operated applications, the device requires only 4 small, inexpensive ceramic capacitors. Built-in soft-start, overcurrent protection, and thermal shutdown features are also included in this device.
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类型 标题 下载最新的英语版本 日期
* 数据表 LM2757 Switched-Capacitor Boost Regulator With High Impedance Output in Shutdown 数据表 (Rev. F) PDF | HTML 2015年 7月 18日
应用手册 How to Meet the HDMI 5V Source Requirement (Rev. C) 2019年 9月 26日
白皮书 The Forgotten Converter 2015年 6月 15日
EVM 用户指南 AN-1731 LM2757 Evaluation Board (Rev. A) 2013年 4月 30日
应用手册 Designing Energy-Efficient Handheld Illum Solutions (Rev. A) 2013年 4月 30日

设计和开发

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评估板

LM2757TMEV — 具有高阻抗输出（停机时）的高效开关电容器升压稳压器 EVM

The LM2757 is a constant frequency pre-regulated switched-capacitor charge pump that operates at 1.25MHz to produce a low-noise regulated output voltage. The device can be configured to provide up to 100mA at 4.1V, 110mA at 4.5V, or 180mA at 5V. Excellent efficiency is achieved without the use of (...)

用户指南: PDF
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仿真模型

LM2757 PSpice Transient Model (Rev. A)

SNVMAR6A.ZIP (145 KB) - PSpice Model
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封装 引脚 下载
DSBGA (YFQ) 12 查看选项
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订购和质量

包含信息：
  • RoHS
  • REACH
  • 器件标识
  • 引脚镀层/焊球材料
  • MSL 等级/回流焊峰值温度
  • MTBF/时基故障估算
  • 材料成分
  • 鉴定摘要
  • 持续可靠性监测
包含信息：
  • 制造厂地点
  • 封装厂地点

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