LM61495-Q1, LM61480-Q1, LM62460-Q1
LM61495-Q1, LM61480-Q1, LM62460-Q1
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SNVSBA0A – FEBRUARY 2020 – REVISED DECEMBER 2020
SNVSBA0A – FEBRUARY 2020 – REVISED DECEMBER 2020
LM62460-Q1, LM61480/95-Q1, Pin Compatible 6-A/8-A/10-A Automotive Buck
Optimized for Power Density and Low EMI
1 Features
3 Description
•
AEC-Q100 qualified for automotive applications:
– Temperature grade 1: –40°C to +125°C, TA
Functional Safety-Capable
– Documentation available to aid functional safety
system design
Input voltage range from 3 V to 36 V
RESET output with filter and delayed release
Designed for low EMI:
– CISPR 25 Class 5 compliant EVM
– Pin-configurable spread spectrum
– Adjustable SW node rise time
The LM6x4xx-Q1 buck regulator family are
automotive-focused regulators providing either fixed
or an adjustable output voltage which can be set from
1 V to 95% of expected input voltage. These
regulators operate under a wide input voltage range
or 3 to 36V and has transient tolerance up to 42 V.
•
•
•
•
The family is designed for low EMI. The device
incorporates pin selectable spread spectrum, and an
adjustable SW node rise time. Dual Random Spread
Spectrum (DRSS) Frequency hopping is set to ±5.5%
(typical), drastically reducing peak emissions through
a combination of triangular and pseudo random
modulation, and includes advanced techniques to
reduce output voltage ripple caused by spread
spectrum modulation.
– Above and below AM band operation: Pin
configurable 400 kHz and 2.2MHz fixed or
adjustable from 200 kHz – 2.2 MHz
– Low EMI symmetrical pinout
An open-drain RESET output, with filtering and
delayed release, gives a true indication of system
status. In auto-mode the device automatically
transitions between Fixed frequency Pulse Width
Modulation (FPWM) and Pulse Frequency Modulation
(PFM) modes of operation, allowing an unloaded
current consumption of only 5 µA (typical). Electrical
– Light load mode is pin-configurable for constant
frequency or pulse frequency modulation (PFM)
High-efficiency solution
•
•
– 95% Efficient for an 8-A load
– 5-µA input current while unloaded in auto mode
– <1-µA shutdown current (typical)
High power density
– Built-in compensation, soft start, current limit,
thermal shutdown and UVLO
characteristics are specified over
temperature range of –40°C to +150°C.
a
junction
Device Information
PACKAGE(1)
BODY SIZE (NOM)
– 4.5-mm × 3.5-mm wettable flank QFN package
PART NUMBER
LM61495-Q1
2 Applications
LM61480-Q1
VQFN (16)
4.50 mm × 3.50 mm
•
•
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Automotive infotainment
Instrument cluster
ADAS
LM62460-Q1
(1) For all available packages, see the orderable addendum at
the end of the data sheet.
3.0 V to 36 V input
VIN1
EN
VIN2
PGND2
PGND1
BIAS
SW
RESET
SPSP
CBOOT
RBOOT
FB
MODE/SYNC
VCC
RT
AGND
EVM Efficiency with ϴJA = 21.6°C/W: VOUT = 5 V,
FSW = 2.2 MHz
Simplified Schematic
An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,
Copyright © 2020 Texas Instruments Incorporated
Submit Document Feedback
intellectual property matters and other important disclaimers. ADVANCE INFORMATION for preproduction products; subject to change
Product Folder Links: LM61495-Q1 LM61480-Q1 LM62460-Q1
1
without notice.
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