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LMR12007YMK 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:
TSOT-23-6
描述:
TEXAS INSTRUMENTS LMR12007YMK 直流-直流开关降压(逐步递减)稳压器, 可调, 3V-18V输入, 1.25V-16V输出, 750mA输出, SOT-6
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P1
原理图在P7P8
封装尺寸在P24P26P27
标记信息在P24
封装信息在P24P25P26P27
焊接温度在P2
技术参数、封装参数在P2P3
应用领域在P1
电气规格在P3P4P5P6
导航目录
LMR12007YMK数据手册
Page:
of 30 Go
若手册格式错乱，请下载阅览PDF原文件
V
IN
V
IN
EN
BOOST
SW
FB
GND
V
OUT
C3
L1
C1
C2
R1
R2
D1
D2
ON
OFF
LMR12007
www.ti.com
SNVS982 –SEPTEMBER 2013
LMR12007 Thin SOT23 750mA Load Step-Down DC-DC Regulator
Check for Samples: LMR12007
1
FEATURES
DESCRIPTION
The LMR12007 regulator is a monolithic, high
23
• Thin SOT-6 Package
frequency, PWM step-down DC/DC converter in a 6-
• 3.0V to 18V Input Voltage Range
pin Thin SOT package. It provides all the active
• 1.25V to 16V Output Voltage Range
functions to provide local DC/DC conversion with fast
transient response and accurate regulation in the
• 750mA Output Current
smallest possible PCB area.
• 550kHz (LMR12007Y) and 1.6MHz (LMR12007X)
With a minimum of external components and online
Switching Frequencies
design support through WEBENCH
®
, the LMR12007
• 350mΩ NMOS Switch
is easy to use. The ability to drive 750mA loads with
• 30nA Shutdown Current
an internal 350mΩ NMOS switch using state-of-the-
• 1.25V, 2% Internal Voltage Reference
art 0.5µm BiCMOS technology results in the best
power density available. The world class control
• Internal Soft-Start
circuitry allows for on-times as low as 13ns, thus
• Current-Mode, PWM Operation
supporting exceptionally high frequency conversion
• WEBENCH
®
Online Design Tool
over the entire 3V to 18V input operating range down
to the minimum output voltage of 1.25V. Switching
• Thermal Shutdown
frequency is internally set to 550kHz (LMR12007Y) or
1.6MHz (LMR12007X), allowing the use of extremely
APPLICATIONS
small surface mount inductors and chip capacitors.
• Local Point of Load Regulation
Even though the operating frequencies are very high,
efficiencies up to 90% are easy to achieve. External
• Core Power in HDDs
shutdown is included, featuring an ultra-low stand-by
• Set-Top Boxes
current of 30nA. The LMR12007 utilizes current-mode
• Battery Powered Devices
control and internal compensation to provide high-
performance regulation over a wide range of
• USB Powered Devices
operating conditions. Additional features include
• DSL Modems
internal soft-start circuitry to reduce inrush current,
• Notebook Computers
pulse-by-pulse current limit, thermal shutdown, and
output over-voltage protection.
Typical Application Circuit
Efficiency vs Load Current "X"
V
IN
= 5V, V
OUT
= 3.3V
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.
2WEBENCH is a registered trademark of Texas Instruments.
3All other trademarks are the property of their respective owners.
PRODUCTION DATA information is current as of publication date.
Copyright © 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.
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