ROHM manuals, page 11
ROHM BD3550HFN handbook
The BD3550HFN, BD3551HFN, and BD3552HFN are a series of high-performance regulator ICs designed for PCs. They feature ultra-low dropout and linear regulation, making them ideal for low input voltage to low output voltage applications. These ICs incorporate a built-in N-MOSFET power transistor to minimize the voltage differential and achieve high current output with reduced conversion loss. This eliminates the need for a switching regulator and its components, resulting in package profile downsizing and cost reduction.
rohm BD3540NUV handbook
BD3540NUV, BD3541NUV are low voltage output linear 1ch series chipset regulator ICs that operate from a very low input supply, and offer ideal performance in low input voltage to low output voltage applications. It incorporates a built-in N-MOSFET power transistor to minimize the input-to-output voltage differential to the ON resistance (RON=200mΩ～ 400mΩ) level. By lowering the dropout voltage in this way, the regulator realizes high current output (Iomax=0.5A～1.0A) with reduced conversion loss, and thereby obviates the switching regulator and its power transistor, choke coil, and rectifier diode. Thus, the BD3540NUV, BD3541NUV are designed to enable significant package profile downsizing and cost reduction. An external resistor allows the entire range of output voltage configurations between 0.65 and 2.7V, while the NRCS (soft start) function enables a controlled output voltage ramp-up, which can be programmed to whatever power supply sequence is required.
ROHM BD3539FVM handbook
BD3539FVM/NUX is a termination regulator compatible with JEDEC DDR1-SDRAM, DDR2-SDRAM, DDR3-SDRAM which functions as a linear power supply incorporating an N-channel MOSFET and provides a sink/source current capability up to 1A respectively.
ROHM BD3538FVM handbook
This is a specification document for the BD3538FVM model, a regulator IC for memory termination. The product features a built-in push-pull amplifier for termination (VTT), a built-in reference voltage circuit (VREF), and dual channels (DDR-Ⅱ). The absolute maximum ratings include input voltage, enable input voltage, termination input voltage, and VDDQ reference voltage. The operating conditions for the product include input voltage, termination input voltage, VDDQ reference voltage, and enable input voltage. Additionally, this product is designed for protection against radioactive rays.
ROHM BD3538F handbook
BD3538F / HFN is a termination regulator compatible with JEDEC DDR-SDRAM, which functions as a linear power supply incorporating an N-channel MOSFET and provides a sink / source current capability up to 1A respectively. A built-in high-speed OP-AMP specially designed offers an excellent transient response. Requires 3.3 volts or 5.0 volts as a bias power supply to drive the N-channel MOSFET. Has an independent reference voltage input pin (VDDQ) and an independent feedback pin (VTTS) to maintain the accuracy in voltage required by JEDEC, and offers an excellent output voltage accuracy and load regulation. Also has a reference power supply output pin (VREF) for DDR-SDRAM or a memory controller. When EN pin turns to “Low”, VTT output becomes “Hi-Z” while VREF output is kept unchanged, compatible with “Self Refresh” state of DDR-SDRAM.
ROHM BD3537F handbook
ROHM BD3533HFN handbook
BD3533HFN is a push-pull termination power supply IC in the BD series, which integrates a push-pull termination power supply circuit and a reference voltage circuit, and is compatible with dual channels (DDR-Ⅱ).
ROHM BD3533FVM handbook
This document introduces a high-performance regulator IC series for DDR-SDRAM, which has current capabilities of 1A, 1.5A, and 3A. It functions as a linear power supply and offers excellent transient response and output voltage accuracy.
ROHM BD35281HFN handbook
The BD35281HFN is an ideal choice for low input voltage to low output voltage applications, and offers high conversion efficiency, which can reduce the size and cost of the power supply line.
ROHM BD3571FP handbook
The BD357XFP/HFP series regulators feature a high 50V withstand-voltage and are suitable for use with onboard vehicle microcontrollers. They offer an output current of 500mA while limiting the quiescent current to 30μA (typical). These devices allow the selection of a ceramic capacitor at the output for stable operation. The output tolerance is within ±2% over the wide ambient temperature range of -40℃ to 125℃, and the short circuit protection is folded-type to minimize heat generation during malfunction. The BD357XFP/HFP series is developed to provide the most robust power-supply design under the harsh automotive environment. They provide ideal solutions for lowering current consumption and simplifying the use with battery direct-coupled systems.
ROHM BU34TA2WNVX Technical Note
ROHM BU34TD2WNVX handbook
BU□□TD2WNVX series is a high-performance FULL CMOS regulator with 200mA output, which is mounted on micro miniature package SSON004X1010. Despite its low circuit current consumption of 35µA, it has excellent noise characteristics and load responsiveness characteristics. It is most appropriate for various applications such as power supplies for logic IC, RF, and camera modules.
ROHM BU34TD3WG handbook
BUTD3WG series is a high-performance FULL CMOS regulator with an output of 200 mA, which is mounted on a versatile SSOP5 (2.9 mm 2.8 mm 1.25 mm) package. It has excellent noise characteristics and load responsiveness characteristics despite its low circuit current consumption of 35A. It is most appropriate for various applications such as power supplies for logic IC, RF, and camera modules.
ROHM BU6655NUX handbook
BU6650NUX, BU6651NUX, BU6652NUX, BU6653NUX, BU6654NUX, BU6655NUX are high-performance 3ch FULL CMOS regulators with 200-mA outputs, which is mounted on small package VSON008X2030(2.0 mm 3.0 mm 0.6 mm). It has excellent noise characteristics and load responsiveness characteristics despite its low circuit current consumption of 120 A. It is most appropriate for various applications such as power supplies for logic IC, RF, and camera modules.
ROHM BU9006GUZ handbook
The BU9006GUZ is a synchronous rectifier step-down DC-DC converter with an input voltage range of 2.5V~4.5V, an output voltage range of 0.95V~4.5V (REF input voltage range of 0.5V~VIN), current mode control, an integrated output FET synchronous rectifier step-down DC-DC converter, a switching frequency of 2.0MHz typical, a maximum output current of 750mA (switching regulator part) and 1200mA (bypass switch part), and a PchFET on resistance at bypass mode of (70mohm) typical. The package size is 1.6mm x 1.6mm, t=0.4mm MAX, WLCSP.