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Overview
| Topology | Buck Converter |
| Input voltage | 5-36 V |
| Switching frequency | 200-2200 kHz |
| Output 1 | 5 V / 3 A |
| IC revision | A |
Description
The LM61430-Q1 is a high-performance, DC-DC synchronous step-down converter. With integrated high-side and low-side MOSFETs, up to 3 A of output current is delivered over a wide input range from 3.0 V to 36 V tolerant of 42 V, easing input surge protection design. The LM61430-Q1 implements soft recovery from dropout eliminating overshoot on the output.
Features
- AEC-Q100 qualified for automotive applications
- Temperature grade 1: –40°C to +150°C, TJ
- Functional Safety-Capable
- Documentation available to aid functional safety system design
- Optimized for ultra low EMI requirements
- HotRod™ package minimizes switch node ringing
- Parallel input path minimizes parasitic inductance
- Adjustable SW node rise time
- Designed for automotive applications
- Supports 42-V automotive load dump
- ±1% total output regulation accuracy
- VOUT adjustable from 1 V to 95% of VIN
- High efficiency power conversion at all loads
- 7-µA nonswitching current at 13.5 VIN, 3.3 VOUT
- External bias option for improved efficiency
- Suitable for scalable power supplies
- Pin compatible with:
- LM61435-Q1 (36 V, 3.5 A, adjustable fsw)
- LM61440-Q1 (36 V, 4 A, adjustable fSW)
- LM61460-Q1 (36 V, 6 A, adjustable fSW)
Typical applications
- Automotive ADAS and body electronics, Automotive infotainment and cluster: head unit, media hub, USB charge, display
More information
Products
Order Code | Datasheet | Simulation | Downloads | Status | Product series | L(µH) | IRP,40K(A) | ISAT,30%(A) | RDC typ.(mΩ) | fres(MHz) | VOP(V) | Mount | ISAT,10%(A) | RDC(mΩ) | Material | Samples | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 | WE-MAPI SMT Power Inductor, 1 µH, 10.1 A | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWE-MAPI SMT Power Inductor | Inductance1 µH | Performance Rated Current10.1 A | Saturation Current @ 30%11.5 A | DC Resistance12 mΩ | Self Resonant Frequency55 MHz | Operating Voltage80 V | MountSMT | Saturation Current @ 10%5.3 A | – | – | ||||
| WE-MAPI SMT Power Inductor, 1.5 µH, 8.6 A | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWE-MAPI SMT Power Inductor | Inductance1.5 µH | Performance Rated Current8.6 A | Saturation Current @ 30%10.2 A | DC Resistance16 mΩ | Self Resonant Frequency48 MHz | Operating Voltage80 V | MountSMT | Saturation Current @ 10%4.8 A | – | – | ||||
 | WE-HCI SMT Flat Wire High Current Inductor, 2.2 µH, 9.2 A | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWE-HCI SMT Flat Wire High Current Inductor | Inductance2.2 µH | Performance Rated Current9.2 A | Saturation Current @ 30%7.5 A | – | Self Resonant Frequency108 MHz | – | MountSMT | Saturation Current @ 10%3.5 A | DC Resistance11.3 mΩ | MaterialSuperflux |