BD99011EFV-ME2 by Rohm

5V output Low Iq DC/DC Converters


The BD99011EFV-M is ultra low Iq Step-down DC/DC converters with integrated power MOSFETs for 5V, 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 BD99011EFV-M is available in a HTSSOP-B24 package. In an application it requires a small number of external components and small PCB footprint.

Where to Buy

Prices starting from US$1.20

Distributor Stock
Logo for Farnell
Farnell
from US$1.20
No stock
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Logo for CoreStaff
CoreStaff
from US$2.37
2,000
in stock
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Logo for Chip One Stop
Chip One Stop
from US$5.65
92
in stock
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Logo for Future Electronics
Future Electronics
from US$3.00
-
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Logo for Avnet America
Avnet America
from US$2.18
-
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Logo for element14
element14
from US$3.40
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Features

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

Specifications

ch 1
Integrated FET / Controller Integrated FET
Topology Buck
Synchronous / Nonsynchronous Synchronous
Vin1(Min.)[V] 3.6
Vin1(Max.)[V] 35
Vout1(Min.)[V] 4.9
Vout1(Max.)[V] 5.1
Iout1(Max.)[A] 2
SW frequency(Max.)[MHz] 0.5
Light Load mode Yes
EN Yes
PGOOD No
Operating Temperature (Min.)[°C] -40
Operating Temperature (Max.)[°C] 105
Package Size [mm] 7.8x7.6 (t=1)
Common Standard AEC-Q100 (Automotive Grade)

Resources




Schematic Design & Verification
Calculation of Power Dissipation in Switching Circuit
Considering Input Filter to Reduce Conducted Emissions by DCDC Converter
Considering Polarity of Power Inductor to Reduce Radiated Emission of DC-DC converter
Method for Monitoring Switching Waveform
PCB Layout Techniques of Buck Converter
Phase Compensation Design for Current Mode Buck Converter
Bootstrap Circuit in the Buck Converter
Method for Determining Constants of Peripheral Parts of Buck DC/DC Converter
Power Supply Sequence Circuit with General Purpose Power Supply IC
Suppression Method of Switching Noise Using Linear Regulator and Low Pass Filter
Measurement Method for Phase Margin with Frequency Response Analyzer (FRA)
Usage of SPICE Macromodel for DC/DC
Snubber Circuit for Buck Converter IC
Efficiency of Buck Converter
Calculation of Power Loss (Synchronous)
Inductor Calculation for Buck converter IC
Considerations for Power Inductors Used for Buck Converters
Capacitor Calculation for Buck converter IC
The Important Points of Multi-layer Ceramic Capacitor Used in Buck Converter circuit
Resistor Value Table to set Output Voltage of Buck Converter IC
Importance of Probe Calibration When Measuring Power: Deskew
Impedance Characteristics of Bypass Capacitor



Manufacturing Data
Factory Information



Alternative Descriptions

AEC-Q 100, 5V Output, 2A, Low Iq Synchronous Buck DC/DC Converter | Future Electronics
Conv DC-DC Single Step Down 3.6V to 35V 24-Pin HTSSOP-B Embossed T/R | Avnet America
DC/DC CONV, AEC-Q100, 500KHZ, HTSSOP-24 | element14


Frequently Asked Questions

Where can I find additional details, specifications and documents for a BD99011EFV-ME2?

Additional datasheets, footprints and schematics for BD99011EFV-ME2 are listed on our Part Details page. You can also find images and similar parts to BD99011EFV-ME2 on this page.

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Is the BD99011EFV-ME2 RoHS compliant?

Yes. This part has been flagged as RoHS Compliant by ROHM Semiconductor.

Which authorised distributors for BD99011EFV-ME2 have stock available?

Authorised distributors including CoreStaff, Chip One Stop, Future Electronics, Avnet America and element14 have stock available or on a lead time for BD99011EFV-ME2.

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