Datasheet 搜索 > National Semiconductor（美国国家半导体） > LM5005 数据手册 > LM5005 数据手册 1/21 页
￥ 0
LM5005 数据手册 - National Semiconductor（美国国家半导体）
制造商:
National Semiconductor（美国国家半导体）
描述:
高电压2.5安培降压稳压器 High Voltage 2.5 Amp Buck Regulator
Pictures:
3D模型
符号图
焊盘图
引脚图
产品图
LM5005数据手册
Page:
of 21 Go
若手册格式错乱，请下载阅览PDF原文件
LM5005
High Voltage 2.5 Amp Buck Regulator
General Description
The LM5005 high voltage switching regulator features all of
the functions necessary to implement an efficient high volt-
age buck regulator using a minimum of external compo-
nents. This easy to use regulator includes a 75V N-Channel
buck switch with an output current capability of 2.5 Amps.
The regulator control method is based upon current mode
control utilizing an emulated current ramp. Current mode
control provides inherent line feed-forward, cycle-by-cycle
current limiting and ease of loop compensation. The use of
an emulated control ramp reduces noise sensitivity of the
pulse-width modulation circuit, allowing reliable control of
very small duty cycles necessary in high input voltage appli-
cations. The operating frequency is programmable from
50kHz to 500kHz. An oscillator synchronization pin allows
multiple LM5005 regulators to self-synchronize or to be syn-
chronized to an external clock. Additional protection features
include: current limit, thermal shutdown and remote shut-
down capability. The device is available in a power enhanced
TSSOP-20 package featuring an exposed die attach pad to
aid thermal dissipation.
Features
n Integrated 75V, 2.5A N-Channel Buck Switch
n Ultra-wide input voltage range from 7V to 75V
n Internal high voltage bias regulator
n Adjustable output voltage from 1.225V
n 1.5% feedback reference accuracy
n Current mode control with emulated inductor current
ramp
n Single resistor oscillator frequency setting
n Oscillator synchronization input
n Programmable soft-start
n Shutdown / Standby input
n Wide bandwidth error amplifier
n Thermal Shutdown
Package
n TSSOP-20EP (Exposed Pad)
Simplified Application Schematic
20161901
September 2005
LM5005 High Voltage 2.5 Amp Buck Regulator
© 2005 National Semiconductor Corporation DS201619 www.national.com
查询LM5005供应商 捷多邦，专业PCB打样工厂，24小时加急出货
器件 Datasheet 文档搜索
AiEMA 数据库涵盖高达 72,405,303 个元件的数据手册，每天更新 5,000 多个 PDF 文件
