Voltage Regulator. LM76002-Q1 Datasheet

LM76002-Q1 Regulator. Datasheet pdf. Equivalent


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LM76002-Q1, LM76003-Q1
SNVSAU3B – DECEMBER 2017 – REVISED OCTOBER 2019
LM7600x-Q1 3.5-V to 60-V, 2.5-A/3.5-A Synchronous
Step-Down Voltage Regulator
1 Features
1 AEC-Q100 qualified for automotive applications
– Device temperature grade 1: –40°C to +125°C
ambient operating temperature
– Device HBM ESD classification level 2
– Device CDM ESD classification level C5
• Integrated synchronous rectification
• Input voltage 3.5 V to 60 V (65 V maximum)
• Output voltage 1 V to 95% VIN
• 15-µA Quiescent current in regulation
• Wide voltage conversion range
– tON-MIN = 65 ns (typical)
– tOFF-MIN = 95 ns (typical)
• System-level features
– Synchronization to external clock
– Power-good flag
– Adjustable soft-start (6.3 ms default)
• Pin-selectable FPWM operation
• Adjustable frequency range: 300 kHz to 2.2 MHz
• High-efficiency at light-load architecture (PFM)
• Protection features
– Cycle-by-cycle current limit
– Short-circuit protection with hiccup mode
– Overtemperature thermal shutdown protection
• Create a custom design using the LM76002-
Q1η/LM76003-Q1 with the WEBENCH® Power
Designer
Simplified Schematic
VIN
CIN
CVCC
PVIN BOOT
EN
SW
PGND
LM76003
SS/TRK BIAS
RT
SYNC/MODE
FB
VCC
AGND
CBOOT
L
VOUT
COUT
RFBT
RFBB
2 Applications
Camera applications for commercial vehicles
Infotainment and cluster
Hybrid electric vehicles
Electric vehicles
3 Description
The LM76002-Q1/LM76003-Q1 regulator is an easy-
to-use synchronous step-down DC-DC converter
capable of driving up to 2.5 A (LM76002-Q1) or 3.5 A
(LM76003-Q1) of load current from an input up to
60 V. The LM76002-Q1/LM76003-Q1 provides
exceptional efficiency and output accuracy in a very
small solution size. Peak current-mode control is
employed. Additional features such as adjustable
switching frequency, synchronization, FPWM option,
power-good flag, precision enable, adjustable soft
start, and tracking provide both flexible and easy-to-
use solutions for a wide range of applications.
Automatic frequency foldback at light load and
optional external bias improve efficiency. This device
requires few external components and has a pinout
designed for simple PCB layout with best-in-class
EMI (CISPR25) and thermal performance. Protection
features include input undervoltage lockout, thermal
shutdown, cycle-by-cycle current limit, and short-
circuit protection. The LM76002-Q1/LM76003-Q1
device is available in the WQFN 30-pin leadless
package with wettable flanks.
Device Information(1)
PART NUMBER
PACKAGE
BODY SIZE (NOM)
LM76002-Q1
LM76003-Q1
WQFN (30)
6.00 mm × 4.00 mm
(1) For all available packages, see the orderable addendum at
the end of the data sheet.
space
Efficiency vs Output Current
(VOUT = 5 V, fSW = 400 kHz, Auto Mode)
100
90
80
70
60
50
40
30
20
10
0
0.001
0.01 0.1
Load Current (A)
VIN = 8 V
VIN = 12 V
VIN = 13.5 V
VIN = 24 V
15
D034
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.


LM76002-Q1 Datasheet
Recommendation LM76002-Q1 Datasheet
Part LM76002-Q1
Description Synchronous Step-Down Voltage Regulator
Feature LM76002-Q1; Product Folder Order Now Technical Documents Tools & Software Support & Community LM76002-Q1, L.
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Datasheet
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etcTI LM76002-Q1
LM76002-Q1, LM76003-Q1
SNVSAU3B – DECEMBER 2017 – REVISED OCTOBER 2019
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......................................................... 5
6.1 Absolute Maximum Ratings ...................................... 5
6.2 ESD Ratings.............................................................. 5
6.3 Recommended Operating Conditions....................... 5
6.4 Thermal Information .................................................. 6
6.5 Electrical Characteristics........................................... 6
6.6 Timing Characteristics............................................... 8
6.7 Switching Characteristics .......................................... 8
6.8 System Characteristics ............................................. 9
6.9 Typical Characteristics ............................................ 10
7 Detailed Description ............................................ 12
7.1 Overview ................................................................. 12
7.2 Functional Block Diagram ....................................... 12
7.3 Feature Description................................................. 13
7.4 Device Functional Modes........................................ 22
8 Application and Implementation ........................ 24
8.1 Application Information............................................ 24
8.2 Typical Applications ............................................... 24
9 Power Supply Recommendations...................... 42
10 Layout................................................................... 42
10.1 Layout Guidelines ................................................. 42
10.2 Layout Example .................................................... 45
10.3 Thermal Design..................................................... 46
11 Device and Documentation Support ................. 47
11.1 Device Support...................................................... 47
11.2 Receiving Notification of Documentation Updates 47
11.3 Support Resources ............................................... 47
11.4 Trademarks ........................................................... 47
11.5 Electrostatic Discharge Caution ............................ 47
11.6 Glossary ................................................................ 47
12 Mechanical, Packaging, and Orderable
Information ........................................................... 47
4 Revision History
Changes from Revision A (November 2018) to Revision B
Page
• Updated the Thermal Information table .................................................................................................................................. 6
• Changed Figure 17 .............................................................................................................................................................. 18
• Changed "the PGOOD switch is turned off" to "the PGOOD switch is turned on" in the Power Good and Overvoltage
Protection (PGOOD) section ................................................................................................................................................ 20
Changes from Original (October 2018) to Revision A
Page
• Deleted "Operating" from "Junction temperature row" in Absolute Maximum Ratings ......................................................... 5
• Deleted Operating junction TJ from Recommended Operating Conditions ............................................................................ 5
• Updated the Power Good and Overvoltage Protection (PGOOD) section........................................................................... 20
• Updated title of Table 2 ........................................................................................................................................................ 25
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Product Folder Links: LM76002-Q1 LM76003-Q1



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5 Pin Configuration and Functions
LM76002-Q1, LM76003-Q1
SNVSAU3B – DECEMBER 2017 – REVISED OCTOBER 2019
SW 1
SW 2
SW 3
SW 4
SW 5
BOOT 6
NC 7
VCC 8
BIAS 9
RT 10
SS/TRK 11
RNP Package
30-Pin WQFN
Top View
NC NC NC NC
30 29 28 27
26 PGND
25 PGND
24 PGND
23 NC
22 PVIN
DAP
21 PVIN
20 PVIN
19 NC
18 EN
17 SYNC/MODE
12 13 14 15
16 PGOOD
FB AGND AGND AGND
Copyright © 2017–2019, Texas Instruments Incorporated
Product Folder Links: LM76002-Q1 LM76003-Q1
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