3.3V output Low Iq DC/DC Converters - BD99010EFV-M

The BD99010EFV-M is ultra low Iq Step-down DC/DC converters with integrated power MOSFETs for 3.3V, respectively. The SLLM™ (Simple Light Load Mode) control ensures an ultra low quiescent current and high efficiency at low load situation as well as a high efficiency at high load situations while maintaining a regulated output voltage. The product is compliant with automotive standards and accommodates a maximum voltage of 42V. The minimum input voltage is 3.6 V in order to sustain output at cold cranking conditions. The current mode regulation loop gives a fast transient response and easy phase compensation.
The BD99010EFV-M is available in a HTSSOP-B24 package. In an application it requires a small number of external components and small PCB footprint.

Part number
Unit Quantity
Minimum Package Quantity
Packing Type
BD99010EFV-ME2 Active HTSSOP-B24 2000 2000 Taping Yes
Grade Automotive
ch 1
Integrated FET / Controller Integrated FET
Buck / Boost / Buck-Boost / Inverting Buck
Synchronous / Nonsynchronous Synchronous
Vin1(Min.)[V] 3.6
Vin1(Max.)[V] 35.0
Vout1(Min.)[V] 3.23
Vout1(Max.)[V] 3.37
Iout1(Max.)[A] 2.0
SW frequency(Max.)[MHz] 0.5
Light Load mode Yes
EN Yes
Operating Temperature (Min.)[°C] -40
Operating Temperature (Max.)[°C] 105
    • Low Quiescent Operating Current: 22uA
    • Simple Light Load Mode (SLLM)
    • Supports Cold Cranking Down to 3.6V
    • Output Voltage Accuracy: ±2%
    • Synchronous Rectifier
    • Soft Start
    • Chip Enable pin compatible with CMOS logic and battery voltages
    • Forced PMW Mode Function
    • Current Mode Control with External Compensation Circuit
    • Over Current Protection, Short Circuit Protection, Over Voltage Protection for VOUT, Under Voltage Lock Out for VIN and Thermal Protection Circuits
Other New/Updated Products Relating to Power Management
PART NUMBER Product Name Package Datasheet Distribution Inventory
BD99011EFV-M 5V output Low Iq DC/DC Converters HTSSOP-B24   Buy Sample
New Products:
Technical Data
Capacitor Calculation for Buck converter IC

This application note explains the calculation of external capacitor value for buck converter IC circuit.

Inductor Calculation for Buck converter IC

This application note covers the steps required in choosing the inductor and to calculate the value used in buck regulator IC circuits.

Resistor Value Table to set Output Voltage of Buck Converter IC

This Application Note offers reference table to easily set resistor values for output voltage with various internal reference voltages VREF.

Thermal Resistance

The definition and how to use thermal resistance and thermal characterization parameter of packages for ROHM’s integrated circuit are described in this application note.

PCB Layout Techniques of Buck Converter

Major problems that arise from in appropriate layout may cause increase in noise superposed by output and switching signal, the deterioration of regulator, and also lack of stability...

The Important Points of Multi-layer Ceramic Capacitor Used in Buck Converter circuit

Using unmatched MLCC may not obtain required target characteristics for power supply circuit and may cause abnormal operation. This application note explains the important points while using MLCC.

Calculation of Power Loss (Synchronous)

This application note describes how to obtain the power loss required to calculate the temperature of a semiconductor device. Temperature control is important to ensuring product reliability.

Thermal Resistance

The definition and how to use thermal resistance and thermal characterization parameter of packages for ROHM’s integrated circuit are described in this application note.

Considerations for Power Inductors Used for Buck Converters

This application note explains the features and things to consider when shopping for power inductors.

Snubber Circuit for Buck Converter IC

In buck converter ICs, many high-frequency noises are generated at switch nodes. A snubber circuit provides one way of eliminating such harmonic noise. This application note explains how to set up the RC snubber circuits.

Efficiency of Buck Converter

This application note explains power loss factors and methods for calculating them. It also explains how the relative importance of power loss factors depends on the specifications of the switching power source.

Measurement Method for Phase Margin with Frequency Response Analyzer (FRA)

This application note introduces a method for easily measuring the phase margin with a Frequency Response Analyzer (FRA) made by NF Corporation.