Switching Regulator. LM26001-Q1 Datasheet

LM26001-Q1 Regulator. Datasheet pdf. Equivalent

Part LM26001-Q1
Description 1.5-A Switching Regulator
Feature Product Folder Sample & Buy Technical Documents Tools & Software Support & Community LM26001, L.
Manufacture etcTI
Datasheet
Download LM26001-Q1 Datasheet

Product Folder Sample & Buy Technical Documents Tools & S LM26001-Q1 Datasheet
Recommendation Recommendation Datasheet LM26001-Q1 Datasheet




LM26001-Q1
Product
Folder
Sample &
Buy
Technical
Documents
Tools &
Software
Support &
Community
LM26001, LM26001-Q1
SNVS430I – MAY 2006 – REVISED MARCH 2015
LM26001/-Q1 1.5-A Switching Regulator With High-Efficiency Sleep Mode
1 Features
1 LM26001-Q1 is an Automotive-Grade Product that
is AEC-Q100 Grade 1 Qualified (–40°C to +125°C
Operating Junction Temperature)
• High-Efficiency Sleep Mode
• 40-µA Typical Iq in Sleep Mode
• 10-µA Typical Iq in Shutdown Mode
• 3.0-V Minimum Input Voltage
• 4.0-V to 38-V Continuous Input Range
• 1.5% Reference Accuracy
• Cycle-by-Cycle Current Limit
• Adjustable Frequency (150 kHz to 500 kHz)
• Synchronizable to an External Clock
• Power Good Flag
• Forced PWM Function
• Adjustable Soft-Start
• HTSSOP-16 Exposed Pad Package
• Thermal Shut Down
2 Applications
• Automotive Telematics
• Navigation Systems
• In-Dash Instrumentation
• Battery-Powered Applications
• Standby Power for Home Gateways/Set-top
Boxes
3 Description
The LM26001 is a switching regulator designed for
the high-efficiency requirements of applications with
standby modes. The device features a low-current
sleep mode to maintain efficiency under light-load
conditions and current-mode control for accurate
regulation over a wide input voltage range. Quiescent
current is reduced to 10 µA typically in shutdown
mode and less than 40 µA in sleep mode. Forced
PWM mode is also available to disable sleep mode.
The LM26001 can deliver up to 1.5 A of continuous
load current with a fixed current limit, through the
internal N-channel switch. The part has a wide input
voltage range of 4.0 V to 38 V and can operate with
input voltages as low as 3 V during line transients.
Operating frequency is adjustable from 150 kHz to
500 kHz with a single resistor and can be
synchronized to an external clock.
Other features include Power Good, adjustable soft-
start, enable pin, input undervoltage protection, and
an internal bootstrap diode for reduced component
count.
Device Information(1)
PART NUMBER PACKAGE
BODY SIZE (NOM)
LM26001
LM26001-Q1
HTSSOP (16)
5.00 mm x 4.40 mm
(1) For all available packages, see the orderable addendum at
the end of the datasheet.
Typical Application Circuit
VIN
C1
R4
VDD
EN
SYNC
R6
C5
R3
1 VIN
2
VIN
3 PGOOD
12
VBIAS
16
SW
15
SW
4
EN
14
BOOT
11 LM26001
7
SYNC
FB
5
SS
9
FREQ
COMP 6
13
VDD
10
FPWM
EP
8
GND
17
L
C4 D1
C8
C3 R5
VOUT
+
R1 C6
R2
1
An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,
intellectual property matters and other important disclaimers. PRODUCTION DATA.



LM26001-Q1
LM26001, LM26001-Q1
SNVS430I – MAY 2006 – REVISED MARCH 2015
www.ti.com
Table of Contents
1 Features .................................................................. 1
2 Applications ........................................................... 1
3 Description ............................................................. 1
4 Revision History..................................................... 2
5 Pin Configuration and Functions ......................... 3
6 Specifications......................................................... 4
6.1 Absolute Maximum Ratings ...................................... 4
6.2 ESD Ratings - LM26001 ........................................... 4
6.3 ESD Ratings - LM26001-Q1 ..................................... 4
6.4 Recommended Operating Conditions....................... 5
6.5 Thermal Information .................................................. 5
6.6 Electrical Characteristics........................................... 5
6.7 Typical Characteristics .............................................. 8
7 Detailed Description ............................................ 11
7.1 Overview ................................................................. 11
7.2 Functional Block Diagram ....................................... 11
7.3 Feature Description................................................. 12
7.4 Device Functional Modes........................................ 16
8 Applications and Implementation ...................... 17
8.1 Application Information............................................ 17
8.2 Typical Application .................................................. 17
9 Power Supply Recommendations...................... 23
10 Layout................................................................... 23
10.1 Layout Guidelines ................................................. 23
10.2 Layout Example .................................................... 24
10.3 Thermal Considerations and TSD......................... 24
11 Device and Documentation Support ................. 25
11.1 Documentation Support ........................................ 25
11.2 Related Links ........................................................ 25
11.3 Trademarks ........................................................... 25
11.4 Electrostatic Discharge Caution ............................ 25
11.5 Glossary ................................................................ 25
12 Mechanical, Packaging, and Orderable
Information ........................................................... 25
4 Revision History
NOTE: Page numbers for previous revisions may differ from page numbers in the current version.
Changes from Revision H (November 2014) to Revision I
Page
• Update made to the Power Dissipation description in Section 6.1 ....................................................................................... 4
• Changed ESD Ratings to ± and moved storage temp to Absolute Maximum Ratings .......................................................... 4
Changes from Revision G (April 2013) to Revision H
Page
• Added Pin Configuration and Functions section, Handling Rating table, Feature Description section, Device
Functional Modes, Application and Implementation section, Power Supply Recommendations section, Layout
section, Device and Documentation Support section, and Mechanical, Packaging, and Orderable Information
section ................................................................................................................................................................................... 1
Changes from Revision F (April 2013) to Revision G
Page
• Changed layout of National Data Sheet to TI format ........................................................................................................... 24
2 Submit Documentation Feedback
Copyright © 2006–2015, Texas Instruments Incorporated
Product Folder Links: LM26001 LM26001-Q1





@ 2014 :: Datasheetspdf.com :: Semiconductors datasheet search & download site (Privacy Policy & Contact)