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LM60430AQRPKRQ1

Automotive 36-V, 3-A synchronous converter in a QFN package with wettable flank and external pad

Manufacturer:

Texas Instruments, Inc
Mfr.Part #:

LM60430AQRPKRQ1
Datasheet:

LM60430AQRPKRQ1 Datasheet (PDF)
Series:

Automotive, AEC-Q100
Function:

Step-Down
Output Configuration:

Positive
Topology:

Buck
EDA/CAD Models:

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LM60430AQRPKRQ1 General Description

The LM604x0-Q1 automotive-qualified regulator is an easy-to-use, synchronous, step-down DC/DC converter that delivers best-in-class efficiency for automotive applications. The LM60430-Q1 drives up to 3-A of load current, and the LM60440-Q1 is industrys smallest 4A step-down converter.

The LM604x0-Q1 is available in an ultra-miniature WQFN package with wettable flanks and a standard QFN pin-out with a thermal pad to enhance thermal performance. This enhanced QFN package features extremely small parasitic inductance and resistance, enabling very high efficiency while minimizing switch node ringing and dramatically reducing EMI.

The LM604x0-Q1 uses peak-current-mode control to automatically fold back frequency at light load to ensure exceptional efficiency across the entire load range. The low power dissipation paired with a thermally optimized QFN package enables a power dense solution size. In addition the device requires few external components and has a pinout designed for simple PCB layout. The small solution size and feature set of the LM604x0-Q1 are designed to simplify implementation for a wide range of end equipment.

Key Features

AEC-Q100 qualified for automotive applications:
- Temperature grade 1: –40°C to +125°C, T_A
Functional Safety-Capable
- Documentation available to aid functional safety system design
Low EMI and switching noise
- Meets CISPR25 class 5 standard
- Enhanced QFN package minimizes parasitic inductance and switch node ringing
Configured for automotive applications
- Standard QFN footprint: single large thermal pad and all pins accessible from perimeter
- Pin compatible variants:
  - LM60440-Q1 (36 V, 4 A)
  - LM60430-Q1 (36 V, 3 A)
- Junction temperature range –40°C to +150°C
- ±1.5% total output regulation accuracy
- Frequency: 400 kHz
- Output voltage range: 1 V to 24 V
High efficiency power conversion at all loads
- Peak efficiency > 95%
- 90% PFM efficiency at 10-mA, 12 V_IN, 5 V_OUT
- Low operating quiescent current of 25 µA
Create a custom design using the LM60440-Q1 with the WEBENCH^® Power Designer

Specifications

Category	Integrated Circuits (ICs)Power Management (PMIC)Voltage Regulators - DC DC Switching Regulators	Series	Automotive, AEC-Q100
Function	Step-Down	Output Configuration	Positive
Topology	Buck	Output Type	Adjustable
Number of Outputs	1	Voltage - Input (Min)	3.8V
Voltage - Input (Max)	36V	Voltage - Output (Min/Fixed)	1V
Voltage - Output (Max)	24V	Current - Output	3A
Frequency - Switching	400kHz	Synchronous Rectifier	Yes
Operating Temperature	-40°C ~ 150°C (TJ)	Mounting Type	Surface Mount, Wettable Flank
Base Product Number	LM60430