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LM2830

正在供货

高频 1A 降压直流/直流转换器

可提供此产品的更新版本

open-in-new 比较替代产品
功能与比较器件相同且具有相同引脚
LM2830-Q1 正在供货 高频 1A 汽车类降压直流/直流转换器 Qualified for automotive.
功能与比较器件相同但引脚有所不同
TPS628501 正在供货 采用 SOT583 封装的 2.7V 至 6V、1A 可调频率降压转换器 This product has higher efficiency, lower EMI and a smaller solution size.

产品详情

Vin (min) (V) 3 Vin (max) (V) 5.5 Vout (min) (V) 0.6 Vout (max) (V) 4.5 Iout (max) (A) 1 Iq (typ) (mA) 3.3 Switching frequency (min) (kHz) 1600 Switching frequency (max) (kHz) 3000 Features Enable, Light Load Efficiency, Light load efficiency Operating temperature range (°C) -40 to 125 Rating Catalog Regulated outputs (#) 1 Control mode current mode Duty cycle (max) (%) 94 Type Converter
Vin (min) (V) 3 Vin (max) (V) 5.5 Vout (min) (V) 0.6 Vout (max) (V) 4.5 Iout (max) (A) 1 Iq (typ) (mA) 3.3 Switching frequency (min) (kHz) 1600 Switching frequency (max) (kHz) 3000 Features Enable, Light Load Efficiency, Light load efficiency Operating temperature range (°C) -40 to 125 Rating Catalog Regulated outputs (#) 1 Control mode current mode Duty cycle (max) (%) 94 Type Converter
SOT-23 (DBV) 5 8.12 mm² 2.9 x 2.8 WSON (NGG) 6 9 mm² 3 x 3
  • LM2830Z-Q1 and LM2830X-Q1 in the
    SOT-23 Package are Automotive-Grade
    Products thatare AEC-Q100 Grade 1
    Qualified (–40°C to +125°C Operating
    Junction Temperature)
  • Space-Saving SOT-23 Package
  • Input Voltage Range of 3.0 V to 5.5 V
  • Output Voltage Range of 0.6 V to 4.5 V
  • 1.0-A Output Current
  • High Switching Frequencies
    • 1.6 MHz (LM2830X)
    • 3.0 MHz (LM2830Z)
  • 130-mΩ PMOS Switch
  • 0.6-V, 2% Internal Voltage Reference
  • Internal Soft-Start
  • Current Mode, PWM Operation
  • Thermal Shutdown
  • Overvoltage Protection
  • LM2830Z-Q1 and LM2830X-Q1 in the
    SOT-23 Package are Automotive-Grade
    Products thatare AEC-Q100 Grade 1
    Qualified (–40°C to +125°C Operating
    Junction Temperature)
  • Space-Saving SOT-23 Package
  • Input Voltage Range of 3.0 V to 5.5 V
  • Output Voltage Range of 0.6 V to 4.5 V
  • 1.0-A Output Current
  • High Switching Frequencies
    • 1.6 MHz (LM2830X)
    • 3.0 MHz (LM2830Z)
  • 130-mΩ PMOS Switch
  • 0.6-V, 2% Internal Voltage Reference
  • Internal Soft-Start
  • Current Mode, PWM Operation
  • Thermal Shutdown
  • Overvoltage Protection

The LM2830 regulator is a monolithic, high-frequency, PWM step-down DC-DC converter in a 5-pin SOT-23 and a 6-Pin WSON package. The device provides all the active functions to provide local DC-DC conversion with fast transient response and accurate regulation in the smallest possible PCB area. With a minimum of external components, the LM2830 regulator is easy to use. The ability to drive 1.0-A loads with an internal 130-mΩ PMOS switch using state-of-the-art 0.5-µm BiCMOS technology results in the best power density available. The world-class control circuitry allows on-times as low as 30 ns, thus supporting exceptionally high frequency conversion over the entire 3-V to 5.5-V input operating range down to the minimum output voltage of 0.6 V. Switching frequency is internally set to 1.6 MHz, or 3.0 MHz, allowing the use of extremely small surface-mount inductors and chip capacitors. Even though the operating frequency is high, efficiencies up to 93% are easy to achieve. External shutdown is included, featuring an ultra-low standby current of 30 nA. The LM2830 regulator uses current-mode control and internal compensation to provide high-performance regulation over a wide range of operating conditions. Additional features include internal soft-start circuitry to reduce inrush current, pulse-by-pulse current limit, thermal shutdown, and output overvoltage protection.

The LM2830 regulator is a monolithic, high-frequency, PWM step-down DC-DC converter in a 5-pin SOT-23 and a 6-Pin WSON package. The device provides all the active functions to provide local DC-DC conversion with fast transient response and accurate regulation in the smallest possible PCB area. With a minimum of external components, the LM2830 regulator is easy to use. The ability to drive 1.0-A loads with an internal 130-mΩ PMOS switch using state-of-the-art 0.5-µm BiCMOS technology results in the best power density available. The world-class control circuitry allows on-times as low as 30 ns, thus supporting exceptionally high frequency conversion over the entire 3-V to 5.5-V input operating range down to the minimum output voltage of 0.6 V. Switching frequency is internally set to 1.6 MHz, or 3.0 MHz, allowing the use of extremely small surface-mount inductors and chip capacitors. Even though the operating frequency is high, efficiencies up to 93% are easy to achieve. External shutdown is included, featuring an ultra-low standby current of 30 nA. The LM2830 regulator uses current-mode control and internal compensation to provide high-performance regulation over a wide range of operating conditions. Additional features include internal soft-start circuitry to reduce inrush current, pulse-by-pulse current limit, thermal shutdown, and output overvoltage protection.

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技术文档

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类型 标题 下载最新的英语版本 日期
* 数据表 LM2830/-Q1 High-Frequency 1.0-A Load Step-Down DC-DC Regulator 数据表 (Rev. E) PDF | HTML 2014年 12月 22日

设计和开发

如需其他信息或资源,请点击以下任一标题进入详情页面查看(如有)。

仿真模型

LM2830X PSpice Average Model

SNVM481.ZIP (73 KB) - PSpice Model
仿真模型

LM2830X PSpice Transient Model

SNVM138.ZIP (194 KB) - PSpice Model
仿真模型

LM2830X Unencrypted PSpice Average Model

SNVM847.ZIP (1 KB) - PSpice Model
仿真模型

LM2830X Unencrypted PSpice Transient Model

SNVM855.ZIP (2 KB) - PSpice Model
仿真模型

LM2830Z PSpice Transient Model

SNVM186.ZIP (177 KB) - PSpice Model
仿真模型

LM2830Z Unencrypted PSpice Transient Model

SNVM854.ZIP (2 KB) - PSpice Model
模拟工具

PSPICE-FOR-TI — 适用于 TI 设计和模拟工具的 PSpice®

PSpice® for TI 可提供帮助评估模拟电路功能的设计和仿真环境。此功能齐全的设计和仿真套件使用 Cadence® 的模拟分析引擎。PSpice for TI 可免费使用,包括业内超大的模型库之一,涵盖我们的模拟和电源产品系列以及精选的模拟行为模型。

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参考设计

PMP8631 — 具有 5V 输入和 1.3V/600mA 输出的降压转换器

This design is a non-synchronous buck converter which operates at 5.0V input voltage and provides 1.3V @ 600mA. For comparisson of the size of the passive components and the performance, one converter is running at 1.6 MHz, the other one at 3.0 MHz.
测试报告: PDF
封装 引脚 下载
SOT-23 (DBV) 5 查看选项
WSON (NGG) 6 查看选项

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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