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Product Detailed Parameters
- Description：IC REG BUCK 3.3V 2A 20HTSSOP-B
- Series：-
- Mfr：Rohm Semiconductor
- Package：Tape & Reel (TR),Cut Tape (CT)
- Function：Step-Down
- Output Configuration：Positive
- Topology：Buck
- Output Type：Fixed
- Number of Outputs：1
- Voltage - Input (Min)：3.5V
- Voltage - Input (Max)：40V
- Voltage - Output (Min/Fixed)：3.3V
- Voltage - Output (Max)：-
- Current - Output：2A
- Frequency - Switching：2.2MHz
- Synchronous Rectifier：Yes
- Operating Temperature：-40°C ~ 125°C (TA)
- Mounting Type：Surface Mount
- Package / Case：20-VSSOP (0.173", 4.40mm Width) Exposed Pad
- Supplier Device Package：20-HTSSOP-B
- Grade：Automotive
- Qualification：AEC-Q100
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Overview
The BD9P235EFV-CE2 is a synchronous buck DC/DC converter from ROHM Semiconductor, designed for automotive applications. It features a wide input voltage range of 3.5 V to 40 V and provides a fixed 3.3 V output at up to 2.0 A. The device operates with a switching frequency of 2.2 MHz and supports an operating temperature range from -40 °C to +125 °C. Packaged in HTSSOP-B20, it integrates power FETs and control circuitry for efficient power management.
Feature Summary
- Integrates Nano Pulse Control technology for stable operation under high step-down ratios
- Features spread spectrum function to reduce electromagnetic interference (EMI)
- Supports fast response during battery start-up conditions
Applications
- Advanced Driver Assistance Systems (ADAS) sensors
- Automotive infotainment systems
- Instrument clusters
- Body Control Modules (BCM)
Procurement Notes
Verify the specific suffix CE2 against official datasheets to confirm package type and tape-and-reel specifications. Ensure compatibility with automotive grade requirements by checking AEC-Q100 qualification status. Confirm lead times and minimum order quantities directly with authorized distributors or the manufacturer, as these parameters are subject to change based on production schedules.
Selection Notes
Select this component when a compact solution is required for 42V automotive systems. The integrated FET design reduces external component count compared to discrete solutions. Consider the 2.2 MHz frequency for smaller passive components. Verify thermal performance within the HTSSOP-B20 package for the expected load current and ambient temperature conditions.
Part Context
This part belongs to the BD9P series of Nano Pulse Control™ converters. These ICs are engineered for high efficiency and fast transient response in automotive environments. The series supports various output configurations while maintaining robust performance across wide input voltage ranges typical of vehicle electrical systems.
Replacement Considerations
Check for BD9P235MUF-CE2 if a VQFN package is preferred over HTSSOP-B20. Both share similar electrical characteristics but differ in physical footprint and thermal dissipation properties. Verify pinout compatibility before substitution.
