ChipApex | Global Electronic Components Supplier
SEARCH
Search Product
Search Post
— IC芯片 | 连接器 | 传感器 | 被动器件 —
Consult the customer manager about the wholesale price.
consultation hotline：86-132-6715-2157
email：[email protected]
Contact the product manager for consultation. One-stop consultation is available.
Do you want a lower wholesale price? Please send us your inquiry and we will reply immediately.
Product Detailed Parameters
- Description：IC REG BUCK ADJ 2A TSOT23-8L
- Series：-
- Mfr：Rohm Semiconductor
- Package：Tape & Reel (TR),Cut Tape (CT)
- Function：Step-Down
- Output Configuration：Positive
- Topology：Buck
- Output Type：Adjustable
- Number of Outputs：1
- Voltage - Input (Min)：2.7V
- Voltage - Input (Max)：5.5V
- Voltage - Output (Min/Fixed)：1.25V
- Voltage - Output (Max)：3.85V
- Current - Output：2A
- Frequency - Switching：1MHz
- Synchronous Rectifier：Yes
- Operating Temperature：-40°C ~ 85°C
- Mounting Type：Surface Mount
- Package / Case：SOT-23-8 Thin, TSOT-23-8
- Supplier Device Package：TSOT23-8L
- Grade：-
- Qualification：-
Download product information
Overview
The BD9A201FP4-LBZTL is a single-channel synchronous buck DC-DC converter from ROHM Semiconductor, featuring an integrated low-on-resistance power MOSFET. It operates with an input voltage range of 2.7 V to 5.5 V and delivers a maximum output current of 2 A. The device supports adjustable output voltages between 0.8 V and 3.85 V. It utilizes current-mode control for stable phase compensation and excellent load response. Key electrical parameters include a maximum switching frequency setting of 1 MHz and a quiescent current of 10 uA. The component is housed in a compact TSOT23-8L package.
Feature Summary
- Integrates a low on-resistance power MOSFET within a synchronous buck topology for high efficiency.
- Employs current-mode control architecture to facilitate simple phase compensation and robust load transient response.
- Includes a Power Good (PGOOD) output pin to assist in system timing and sequence control.
- Features light load mode operation to minimize switching losses and reduce standby power consumption.
Applications
- Industrial equipment power supplies
- Programmable Logic Controllers (PLCs)
- Consumer appliances such as refrigerators and washing machines
- Inverter systems
Procurement Notes
Verify the complete part number including the TL suffix to ensure correct tape-and-reel packaging configuration. Confirm that the required operating temperature range aligns with the specified -40°C to +85°C limit. Ensure compatibility with the TSOT23-8L footprint dimensions during PCB layout. Check for RoHS compliance status if required by specific regulatory standards.
Selection Notes
Select this component when a compact solution is needed for low-voltage input applications requiring up to 2 A. The current-mode control is advantageous for designs prioritizing ease of compensation stability. The small TSOT23-8L package is suitable for space-constrained industrial and consumer boards. Consider the 1 MHz switching frequency capability for minimizing external passive component sizes.
Part Context
This device belongs to ROHM's series of energy-saving DC-DC converters designed for industrial and consumer markets. It is positioned alongside similar models like the BD9E304FP4-LBZ and BD9A600MUV-E2, offering a balance of performance and size. The product line emphasizes long-term supply availability for industrial applications while utilizing advanced control methods to enhance efficiency at light loads.
Replacement Considerations
Direct substitutes may include other ROHM synchronous buck converters with similar input ranges and current capabilities, such as the BD9E202FP4-Z or BD9A400MUV-E2, provided pinout and thermal requirements are compatible. Verify functional equivalence regarding control topology and protection features before substitution.
