Design tool
DRV3233-Q1-DESIGN — DRV3233-Q1-DESIGN documentation
Documentation and tools for DRV3233 design support
Data sheet
LM5164
- Designed for reliable and rugged applications
- Wide input voltage range of 6V to 100V
- Junction temperature range: –40°C to +150°C
- Fixed 3ms internal soft-start timer
- Peak and valley current-limit protection
- Input UVLO and thermal shutdown protection
- Optimized for ultra-low EMI requirements
- Meets CISPR 25 class 5 standard
- Suited for scalable Industrial power supplies and battery packs
- Low minimum on- and off-times of 50ns
- Adjustable switching frequency up to 1MHz
- Diode emulation for high light-load efficiency
- 10.5µA no-load input quiescent current
- 3µA shutdown quiescent current
- Integration reduces design size and cost
- COT mode control architecture
- Integrated 0.725Ω NFET buck switch
- Integrated 0.34Ω NFET synchronous rectifier eliminates external Schottky diode
- 1.2V internal voltage reference
- No loop compensation components
- Internal VCC bias regulator and boot diode
- Open-drain power good indicator
- 8-pin SOIC package with PowerPAD™
- Create a custom regulator design using WEBENCH power designer
The LM5164 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 50ns facilitates large step-down conversion ratios, enabling the direct step-down from a 48V nominal input to low-voltage rails for reduced system complexity and solution cost. The LM5164 operates during input voltage dips as low as 6V, at nearly 100% duty cycle if needed, making the device an excellent choice for wide input supply range industrial and high cell count battery pack applications.
With integrated high-side and low-side power MOSFETs, the LM5164 delivers up to 1A 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 LM5164 include ultra-low IQ and diode emulation mode operation for high light-load efficiency, innovative peak and valley 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 LM5164 is available in a thermally-enhanced, 8-pin SO PowerPAD™ package. The 1.27mm pin pitch provides adequate spacing for high-voltage applications.
The LM5164 is available in a thermally-enhanced, 8-pin SO PowerPAD™ package. The device 1.27mm pin pitch provides adequate spacing for high-voltage applications.
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Technical documentation
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Evaluation board
LM5164-Q1EVM — Synchronous step-down converter evaluation module
The LM5164-Q1 evaluation module (EVM) is a fully assembled and tested circuit for evaluating the LM5164-Q1, 300-kHz synchronous step-down converter. The LM5164-Q1EVM operates at very low quiescent current and delivers exceptional efficiency with minimum number of external components.
User guide: PDF
Calculation tool
LM5163-LM5164DESIGN-CALC — LM5163 and LM5164 converter quickstart design tool
Welcome to the LM5163 and LM5164 Quickstart Design Tool. This standalone tool facilitates and assists the power supply engineer with design of a DC/DC buck converter based on the LM5163 and LM5164 low IQ synchronous buck DC/DC regulator. As such, the user can expeditiously arrive at an optimized (...)
User guide: PDF
Reference designs
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This reference design is a low standby and ship mode current consumption and high SOC gauging accuracy 13S, 48-V Li-ion battery pack design. It monitors each cell voltage, pack current and temperature with high accuracy and protects the Li-ion battery pack against overvoltage, undervoltage, over (...)
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| Package | Pins | CAD symbols, footprints & 3D models |
|---|---|---|
| HSOIC (DDA) | 8 | Ultra Librarian |
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