LM5013-Q1
6-V to 100-V input, 3.5-A non-synchronous buck DC/DC converter with ultra-low quiescent current (IQ)
LM5013-Q1
- AEC-Q100-qualified for automotive applications
- Device temperature grade 1: –40°C to +125°C, ambient temperature range
- Functional Safety-Capable
- Designed for reliable and rugged applications
- Wide input voltage range of 6 V to 100 V
- –40°C to +150°C junction temperature range
- Fixed 3.5-ms internal soft-start timer
- Peak current-limit protection
- Input UVLO and thermal shutdown protection
- Optimized for ultra-low EMI requirements
- Meets CISPR 25 class 5 standard
- Suited for scalable automotive power supplies
- Pin-to-pin compatible with the LM5163-Q1 and LM5164-Q1 (100 V, 0.5 A, or 1 A)
- 50-ns low minimum on times and off times
- 10-µA no-load sleep current
- 3.1-µA shutdown quiescent current
- Integration reduces solution size and cost
- COT mode control architecture
- Integrated 100-V, 0.25-Ω power MOSFET
- 1.2-V internal voltage reference
- No loop compensation components
- Internal VCC bias regulator and boot diode
- Create a custom regulator design with the LM5013-Q1 using WEBENCH Power Designer
The LM5013-Q1 non-synchronous buck converter is designed to regulate over a wide input voltage range, minimizing the need for external surge suppression components. A minimum controllable on time of 50 ns facilitates large step-down conversion ratios, enabling the direct step-down from a 48-V nominal input to low-voltage rails for reduced system complexity and solution cost. The LM5013-Q1 operates during input voltage dips as low as 6 V, at nearly 100% duty cycle if needed, making it an excellent choice for high-performance 48-V battery automotive applications and MHEV/EV systems.
With integrated high-side power MOSFET, the LM5013-Q1 delivers up to 3.5 A of output current. A constant on-time (COT) control architecture provides nearly constant switching frequency with excellent load and line transient response. Additional features of the LM5013-Q1 include ultra-low IQ operation for high light-load efficiency, innovative peak overcurrent protection, integrated VCC bias supply and bootstrap diode, precision enable and input UVLO, and thermal shutdown protection with automatic recovery. An open-drain PGOOD indicator provides sequencing, fault reporting, and output voltage monitoring.
The LM5013-Q1 is qualified to automotive AEC-Q100 grade 1 and is available in a 8-pin SO PowerPAD™ package. The 1.27-mm pin pitch provides adequate spacing for high-voltage applications.
Technical documentation
| Type | Title | Date | ||
|---|---|---|---|---|
| * | Data sheet | LM5013-Q1 Automotive 100-V Input, 3.5-A Non-Synchronous Buck DC/DC Converter with Ultra-low IQ datasheet | PDF | HTML | 01 Apr 2022 |
| Application note | Optimizing Line and Load Regulation in Automotive, 48-V Battery and eBike Apps | PDF | HTML | 16 Mar 2023 | |
| Application note | LM501x Thermals and Example PCB Design | PDF | HTML | 07 Apr 2022 | |
| Functional safety information | LM5013-Q1 Functional Safety, FIT Rate, Failure Mode Distribution and Pin FMA | PDF | HTML | 16 Mar 2022 | |
| User guide | LM5013-Q1 EVM User's Guide (Rev. A) | PDF | HTML | 01 Nov 2021 | |
| Certificate | LM5013-Q1EVM Declaration of Conformity | 09 Mar 2021 |
Design & development
For additional terms or required resources, click any title below to view the detail page where available.
| Package | Pins | Download |
|---|---|---|
| HSOIC (DDA) | 8 | View options |
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