Integrated power MOSFET
Buck Switching Regulators
BD9Dxxx Series
Ver. 3
Supports 12V input rails
No phase compensation required
High-speed load response
DC/DC converters with built-in power MOSFET
Simplifies
design
G##C
at all loads
No phase
compensation
required
HTSOP-J8
Power Conversion Efficiency
Lineup
&'()5+01
Fast load
response
Energy
saving
The BD9Dxxx series utilizes fixed ON time control for fast
load response characteristics. Both pin-compatible models
with/without Light Load Mode are offered for optimum compatibility.
In addition phase compensation is not required, simplifying design
while reducing the number of parts required.
;J
High-speed
operation
Input
4J: to *8
&'()*+01
Max.
Output
$
(J5
*55
Light Load
Efficiency
\
90
Vo=5.0V
Vo=3.3V
85
Vo=1.8V
G318
@5
! VU
<
24J:*8
! U
< 25J@K:@J5
!<#
25J@K:P*J:Q
!0AC 2@55GH
!%0+;<==
2*55>?@5>
! Operating Temp. Range 2345678:6
! Fixed ON Time control
!No phase compensation required
! Supports output ceramic capacitors
! Synchronous rectification eliminates the need for external diode
!$%&'()*+01
!"
#
! Multiple protection functions
+##CQ
Specifications
K5
G##C==
the entire load range
:5
40
(5
)5
Conditions
VIN=12V
*5
0
5J55*
5J5*
5J*
$
IN
*)
BOOT
IN
)J)YG
*5Y0
SW
! Distributed power systems
!=
! =G?
! Secondary power supplies
! Gaming equipment
! ;"=?"
=
*5
Application Circuit Diagram
Applications
!=
*
))Y0
Enable
EN
SS
REG
GND
FB
<G%&?U
<
G%&
&
U
DC/DC
C Conve
Converter Series
Buck-Type Produc
ct Family
^%%
Light Load Mode
;3
j2;3C=
)5
&'K5*+01
Internal FET
(Converter)
0==<=U=?G+##C
KJ5
Single Output
S
&'&K55%
&'$K55%
Buck Type
)5
&':5*+01
0==<=U=?G+##C
:J5
Boost Type
&=3&
Type
&'&:55%
&'$:55%
&'&455%
&'$455%
Output Current (A)
&CU
&=?;J
Type
&CU
External FET
Single Output
)5
&'45*+01
0==<=U=?G+##C
4.0
Dual Output
Max. Rating
0==<=U=?G+##C
)5
&'()*+01
Fast Transient Response
)5
&'()5+01
Ideal for Industrial Equipment
)5
)5
&'(5*013&
&'(5*01
(J5
0==<=U=?G+##C
&'&(55%
Ideal for Industrial Equipment
&'$(5*%3&
&'$(55%
Boost Type
^_:@5GH?V
#V=
+AU
&=?;J
Type
^_*%GH?V
#V=
+AU
&CU
&'&)55%
G+##C?^_:@5GH
0==<=U=?G+##C
&'&*55%
^_:@5GH?V
#V=
+AU
&'+*5*013&
&'$*5*%3&
&'$*55%
^_*%GH?V
#V=
+AU
&'+*55013&
j &'`*5*`
5J:
:J5
(J(
(5
&'+*5)01
Ideal for Industrial Equipment
*J5
(5
&'+*:*;k
j
*J)
&=?;J?
&CU
45
&'+(55+013&
0==<=U=?G+##C
)J5
Dual Output
45
&'+(5*+013&
)J:
*)
45
45
4:
)4
Input Rail Voltage (V)
Buck Converter Product Family Diagram
Synchronous Rectification
Non-Synchronous Rectification
<#
Synchronous Rectification
Control Method
Control Method
%
%
Light Load Mode
GC===
Light Load Mode
None
Yes
Light Load Mode
No
Yes
No
BD9A100MUV
BD9E100FJ-LB
BD9B100MUV
BD9D320EFJ
6.0-42V,0.5A,1.5MHz
2.7-5.5V,1.0A,1MHz
7.0-36V,1.0A,1MHz
2.7-5.5V,1.0A,1M/2MHz
4.5-18V,3.0A,700kHz
BD9E151NUX
BD9A600MUV
BD9E101FJ-LB
BD9B600MUV
6.0-28V,1.2A,600kHz
2.7-5.5V,6.0A,1MHz
7.0-36V,1.0A,570kHz
2.7-5.5V,6.0A,1M/2MHz
BD9A101MUV-LB
BD9E300EFJ-LB
BD9D321EFJ
2.7-5.5V,1.0A,1MHz
7.0-36V,2.5A,1MHz
4.5-18V,3.0A,700kHz
BD9E102FJ
BD9E301EFJ-LB
7.0-26V,1.0A,570kHz
7.0-36V,2.5A,570kHz
BD9A301MUV-LB
BD9C301FJ/301FJ-LB
2.7-5.5V,3.0A,1MHz
4.5-18V,3.0A,500kHz
...
...
...
BD9G101G
BD9C601EFJ
4.5-18V,6.0A,500kHz
Non-Synchronous Rectification
%
Synchronous Rectification
%
Synchronous Rectification
GC===
The content specified in this document is correct as of February 1st, 2014.
[{5(*| ;J:KK@@8+3&5)J)5*4<G%© 0