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BD9853AFV

Description
Single/Dual-output High-frequency Step-down Switching Regulato (Controller type)
CategoryPower/power management    The power supply circuit   
File Size478KB,17 Pages
ManufacturerROHM Semiconductor
Websitehttps://www.rohm.com/
Environmental Compliance
Download Datasheet Parametric View All

BD9853AFV Overview

Single/Dual-output High-frequency Step-down Switching Regulato (Controller type)

BD9853AFV Parametric

Parameter NameAttribute value
Is it lead-free?Lead free
Is it Rohs certified?conform to
Parts packaging codeSOIC
package instructionSSOP, TSSOP16,.25
Contacts16
Reach Compliance Codecompli
ECCN codeEAR99
Other featuresALSO HAS 11.5 VOLT OUTPUT AVAILABLE
Analog Integrated Circuits - Other TypesDUAL SWITCHING CONTROLLER
control modeVOLTAGE-MODE
Control TechnologyPULSE WIDTH MODULATION
Maximum input voltage16 V
Minimum input voltage4.5 V
Nominal input voltage12 V
JESD-30 codeR-PDSO-G16
JESD-609 codee2
length5 mm
Number of functions1
Number of terminals16
Maximum operating temperature85 °C
Minimum operating temperature-40 °C
Nominal output voltage5 V
Package body materialPLASTIC/EPOXY
encapsulated codeSSOP
Encapsulate equivalent codeTSSOP16,.25
Package shapeRECTANGULAR
Package formSMALL OUTLINE, SHRINK PITCH
Peak Reflow Temperature (Celsius)260
Certification statusNot Qualified
surface mountYES
Switch configurationPUSH-PULL
Maximum switching frequency2000 kHz
Temperature levelINDUSTRIAL
Terminal surfaceTin/Copper (Sn/Cu)
Terminal formGULL WING
Terminal pitch0.65 mm
Terminal locationDUAL
Maximum time at peak reflow temperatureNOT SPECIFIED
width4.4 mm
Base Number Matches1
Large Current External FET Controller Type Switching Regulators
Single/Dual-output High-frequency
Step-down Switching Regulator(Controller type)
BD9853AFV
No.09028EAT05
●Description
The BD9853AFV is a 2-ch synchronous DC/DC controller that can operate at a maximum switching frequency of 2MHz,
enabling the use of a smaller external coil than conventional lower-frequency switching regulators. This makes the
BD9853AFV a suitable choice for downsizing applications.
●Features
1) Synchronous Switching Regulator Controller 2channels
2) FET(Pch/Nch) Direct Drive
3) Adjustable Oscillator Frequency with External Resistor (Max. 2MHz)
4) Under Voltage Lockout Function (UVLO)
5) Thermal Shut Down Function (TSD)
6) Short Circuit Protection (SCP)
7) Independent ON/OFF Function in Each Channel with Soft Start Pin
8) SSOP-B16 Package
SSOPB16
●Applications
TVSTB, PC, Portable CD・DVD,DVC etc.
●Absolute
Maximum Ratings
(Ta = 25℃)
Parameter
Supply Voltage (VCC-GND)
VREGA-GND Voltage
VCC-VREGB Voltage
Power Dissipation
Operating Temperature Range
Junction Temperature
Storage Temperature Range
*
Symbol
Vcc
VREGA
VREGB
Pd
Topr
Tjmax
Tstg
Limits
18
7
7
562(*1)
-40 to +85
+150
-55 to +150
Unit
V
V
V
mW
Reduced by 4.49mW for each increase in Ta of 1℃ over 25℃ (When mounted on a board 70×70×1.6tmm grass-epoxy PCB)
●Recommended
Operating Conditions
Parameter
Supply Voltage
Oscillator Frequency
Symbol
Vcc
fosc
Limits
Min.
4.5
100
Typ.
12
1000
Max.
16
2000
Unit
V
KHz
www.rohm.com
© 2009 ROHM Co., Ltd. All rights reserved.
1/16
2009.05 - Rev.A
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