3.5-V to 36-V, 2.5-A step-down voltage converter with spread spectrum
Product details
Parameters
Package | Pins | Size
Features
- AEC-Q100-Qualified for automotive applications
- Device temperature grade 1: –40°C to +125°C ambient operating temperature
- Functional safety capable
- Documentation available to aid functional safety system design
- Supports automotive system requirements
- Input voltage range: 3.5 V to 36 V
- Short minimum on-time of 50 ns
- Good EMI performance
Pseudo-random spread spectrum
Compatible with CISPR 25 - Low operating quiescent current of 23 µA
- Junction temperature range –40°C to +150°C
- High design flexibility
- Small solution size
- As small as: 10 mm x 10 mm for 2.5 A, 2.2 MHz with WSON package
- Highly integrated solution
- Low component count
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Description
The LM636x5D-Q1 regulator is an easy-to-use, synchronous, step-down DC/DC converter designed for rugged automotive applications. The LM636x5D-Q1 can drive up to 1.5-A or 2.5-A of load current from an input of up to 36 V. The converter has high light load efficiency and output accuracy in a small solution size. Features such as a RESET flag and precision enable provide both flexible and easy-to-use solutions for a wide range of applications. Automatic frequency foldback at light load improves efficiency while maintaining tight load regulation. Integration eliminates many external components and provides a pinout designed for simple PCB layout. Protection features include thermal shutdown, input undervoltage lockout, cycle-by-cycle current limit, and hiccup short-circuit protection. The LM636x5D-Q1 is available in both the HTSSOP 16-pin power package, with PowerPAD™, and the WSON 12-pin power package.
Sample availability
Preproduction samples in DRR (WSON) package (PLM63625DQB1DRRQ1) are available. Request now
Technical documentation
Design & development
For additional terms or required resources, click any title below to view the detail page where available.Hardware development
Description
Features
- Integrated synchronous rectification
- Low operating quiescent current
- High efficiency at light loads
- Low minimum on-time
Description
Features
- Integrated synchronous rectification
- Low operating quiescent current
- High efficiency at light loads
- Low minimum on-time
Software development
Design tools & simulation
Features
- Leverages Cadence PSpice Technology
- Preinstalled library with a suite of digital models to enable worst-case timing analysis
- Dynamic updates ensure you have access to most current device models
- Optimized for simulation speed without loss of accuracy
- Supports simultaneous analysis of multiple products
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Reference designs
Design files
-
download PMP30794 BOM.pdf (189KB) -
download PMP30794 Assembly Drawing.pdf (92KB) -
download PMP30794 PCB.pdf (237KB) -
download PMP30794 CAD Files.zip (386KB) -
download PMP30794 Gerber.zip (42KB)
Design files
-
download PMP30785 BOM.pdf (177KB) -
download PMP30785 Assembly Drawing.pdf (290KB) -
download PMP30785 PCB.pdf (1226KB) -
download PMP30785 CAD Files.zip (1037KB) -
download PMP30785 Gerber.zip (630KB)
Design files
-
download PMP22030 BOM.pdf (60KB) -
download PMP22030 Assembly Drawing.pdf (192KB) -
download PMP22030 PCB.pdf (1005KB) -
download PMP22030 CAD Files.zip (1134KB) -
download PMP22030 Gerber.zip (600KB)
CAD/CAE symbols
Package | Pins | Download |
---|---|---|
HTSSOP (PWP) | 16 | View options |
WSON (DRR) | 12 | View options |
Ordering & quality
- RoHS
- REACH
- Device marking
- Lead finish/Ball material
- MSL rating/Peak reflow
- MTBF/FIT estimates
- Material content
- Qualification summary
- Ongoing reliability monitoring
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Support & training
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