Datasheet 搜索 > DC/DC转换器 > TI（德州仪器） > LM20123MH/NOPB 数据手册 > LM20123MH/NOPB 数据手册 1/29 页
器件3D模型￥ 24.463
LM20123MH/NOPB 数据手册 - TI（德州仪器）
制造商:
TI（德州仪器）
分类:
DC/DC转换器
封装:
TSSOP-16
描述:
Step-Down DC/DC Converters (Integrated Switch) up to 6V Input Max., LM Series, Texas Instruments### 直流/直流开关调节器转换器（集成开关），Texas InstrumentsTexas Instruments 的此系列高度集成的高效开关稳压器包括步升（升压）、步降（降压）、步升/降（增压/降压）和反相类型，为每个直流稳压器应用提供高效的解决方案。
Pictures:
3D模型
符号图
焊盘图
引脚图
产品图
页面导航:
引脚图在P2Hot
典型应用电路图在P1P13P22
原理图在P9P21
封装尺寸在P24P26P27
标记信息在P24
封装信息在P24P25P26P27
技术参数、封装参数在P3
应用领域在P1P29
电气规格在P3P4P5P6P7P8
导航目录
LM20123MH/NOPB数据手册
Page:
of 29 Go
若手册格式错乱，请下载阅览PDF原文件
PVIN
SW
AGND
FB
PGOOD
EN
SS/TRK
AVIN
COMP
LM20123
L
R
F
VCC
PGND
C
IN
R
C1
C
C1
V
IN
C
SS
C
VCC
C
OUT
V
OUT
R
FB2
R
FB1
C
F
(optional)
LM20123
www.ti.com
SNVS524E –OCTOBER 2007–REVISED MARCH 2013
LM20123/LM20123Q 3A, 1.5MHz PowerWise
®
Synchronous Buck Regulator
Check for Samples: LM20123
1
FEATURES
DESCRIPTION
The LM20123 is a full featured 1.5 MHz synchronous
2
• LM20123Q is AEC-Q100 Qualified and
buck regulator capable of delivering up to 3A of
Manufactured on an Automotive Grade Flow
continuous output current. The current mode control
• Input Voltage Range 2.95V to 5.5V
loop can be compensated to be stable with virtually
• Accurate Current Limit Minimizes Inductor
any type of output capacitor. For most cases,
compensating the device only requires two external
Size
components, providing maximum flexibility and ease
• 96% Efficiency with 1.5 MHz Switching
of use. The device is optimized to work over the input
Frequency
voltage range of 2.95V to 5.5V making it suited for a
• 32 mΩ Integrated FET Switches
wide variety of low voltage systems.
• Starts up into Pre-Biased Loads
The device features internal over voltage protection
• Output Voltage Tracking
(OVP) and over current protection (OCP) circuits for
increased system reliability. A precision enable pin
• Peak Current Mode Control
and integrated UVLO allows the turn on of the device
• Adjustable Output Voltage Down to 0.8V
to be tightly controlled and sequenced. Start-up
• Adjustable Soft-Start with External Capacitor
inrush currents are limited by both an internally fixed
and externally adjustable Soft-Start circuit. Fault
• Precision Enable Pin with Hysteresis
detection and supply sequencing is possible with the
• Integrated OVP, UVLO, Power Good and
integrated power good circuit.
Thermal Shutdown
The LM20123 is designed to work well in multi-rail
• HTSSOP (16-Pins) Exposed Pad Package
power supply architectures. The output voltage of the
device can be configured to track a higher voltage rail
APPLICATIONS
using the SS/TRK pin. If the output of the LM20123 is
• Simple to Design, High Efficiency Point of
pre-biased at startup it will not sink current to pull the
Load Regulation from a 5V or 3.3V Bus
output low until the internal soft-start ramp exceeds
the voltage at the feedback pin.
• High Performance DSPs, FPGAs, ASICs and
Microprocessors
The LM20123 is offered in a 16-pin HTSSOP
package with an exposed pad that can be soldered to
• Broadband, Networking and Optical
the PCB, eliminating the need for bulky heatsinks.
Communications Infrastructure
Typical Application Circuit
1
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
2All trademarks are the property of their respective owners.
PRODUCTION DATA information is current as of publication date.
Copyright © 2007–2013, Texas Instruments Incorporated
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
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
