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LM25005 データシート(PDF) 1 Page - Texas Instruments

部品番号 LM25005
部品情報  LM25005 42V, 2.5A Step-Down Switching Regulator
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メーカー  TI [Texas Instruments]
ホームページ  http://www.ti.com
Logo TI - Texas Instruments

LM25005 データシート(HTML) 1 Page - Texas Instruments

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BST
SW
COMP
FB
SS
RAMP RT
VCC
VIN
OUT
IS
GND
LM25005
VIN
VOUT
SD
SYNC
LM25005
www.ti.com
SNVS411C – JANUARY 2006 – REVISED MARCH 2013
LM25005 42V, 2.5A Step-Down Switching Regulator
Check for Samples: LM25005
1
FEATURES
DESCRIPTION
The LM25005 switching regulator features all of the
2
Integrated 42V, 160m
Ω N-Channel MOSFET
functions necessary to implement an efficient, high
Ultra-Wide Input Voltage Range from 7V to 42V
voltage buck regulator using a minimum of external
Internal Bias Regulator
components. This easy to use regulator includes a
42V, 160m
Ω, N-channel MOSFET, with an output
Adjustable Output Voltage from 1.225V
current capability of 2.5 Amps. The regulator control
1.5% Feedback Reference Accuracy
method is based upon current mode control utilizing
Current Mode Control with Emulated Inductor
an emulated current ramp. Current mode control
Current Ramp
provides inherent line voltage feed-forward, cycle-by-
cycle current limiting and ease of loop compensation.
Single Resistor Oscillator Frequency Setting
The use of an emulated control ramp reduces noise
Oscillator Synchronization Input
sensitivity of the pulse-width modulation circuit,
Programmable Soft-Start
allowing reliable control of very small duty cycles
necessary in high input voltage applications. The
Shutdown / Standby Input
operating frequency is programmable from 50kHz to
Wide Bandwidth Error Amplifier
500kHz. An oscillator synchronization pin allows
Thermal Shutdown
multiple LM25005 regulators to self-synchronize or to
be synchronized to an external clock. Additional
protection features include: current limit, thermal
shutdown and remote shutdown capability. The
device is available in a power enhanced HTSSOP
package featuring an exposed die attach pad to aid
thermal dissipation.
Package
HTSSOP (Exposed Pad)
Simplified Application Schematic
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.
2
All trademarks are the property of their respective owners.
PRODUCTION DATA information is current as of publication date.
Copyright © 2006–2013, 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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同様の説明 - LM25005_15

メーカー部品番号データシート部品情報
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