Datasheet
CMOS LDO Regulators for Automotive Equipments
1ch 200mA
CMOS LDO Regulators
BUxxSD2-M series
●General
Description
BUxxSD2-M series are high-performance CMOS LDO
regulators with output current ability of up to 200-mA.
These devices have excellent noise and load response
characteristics despite of its low circuit current
consumption of 33µA. They are most appropriate for
various applications such as power supplies for logic IC,
RF, and camera modules.
●Features
High Output Voltage Accuracy:
±2.0%
(In all recommended conditions)
High Ripple Rejection: 68 dB (Typ, 1 kHz,)
Compatible with small ceramic capacitor
(Cin=Cout=0.47 µF)
Low Current Consumption: 33 µA
Output Voltage ON/OFF control
Built-in Over Current Protection Circuit (OCP)
Built-in Thermal Shutdown Circuit (TSD)
Package SSOP5 is similar to SOT23-5(JEDEC)
●Key
Specifications
Input Power Supply Voltage Range:
1.7V to 6.0V
Output Current Range:
0 to 200mA
Operating Temperature Range:
-40℃ to +105℃
Output Voltage Lineup:
1.2V,1.5V,1.8V,2.5V
2.8V,3.0V,3.3V
Output Voltage Accuracy:
±2.0%
Circuit Current:
33µA(Typ.)
Standby Current:
0μA (Typ.)
●Package
SSOP5
W(Typ.) x D(Typ.) x H(Max.)
2.90mm x 2.80mm x 1.25mm
●Applications
Automotive equipments.
Portable devices
Camera modules
Other electronic devices using microcontrollers or
logic circuits
AEC-Q100 qualified
●Typical
Application Circuit
Vin
Cin
VIN
VOUT
Cout
BUxxSD2MG-M
BUxxSD2-M
Vout
On
Off
STBY
GND
Figure 1. Typical Application Circuit
○Product
structure：Silicon monolithic integrated circuit
.
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© 2012 ROHM Co., Ltd. All rights reserved.
TSZ22111・14・001
○This
product is not designed protection against radioactive rays
1/35
TSZ02201-0RBR0A300020-1-2
2014.02.17 Rev.003
BUxxSD2-M series
●Pin
Configuration
VOUT
N.C.
Datasheet
Marking
VIN GND STBY
Lot. No
●Pin
Description
Pin No.
1
2
3
4
5
Symbol
VIN
GND
STBY
N.C.
VOUT
Input Pin
GND Pin
Output Control Pin
(High:ON, Low:OFF)
No Connect
Output Pin
Function
●Block
Diagram
VIN
VIN
1
VREF
Cin
5
VOUT
GND
2
OCP
TSD
VOUT
Cout
4
N.C.
VSTBY
STBY
3
STBY
Cin(min)=0.47
µ
F (Ceramic)
Cout(min)=0.47
µ
F (Ceramic)
Figure 2. Block diagram
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© 2012 ROHM Co., Ltd. All rights reserved.
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TSZ02201-0RBR0A300020-1-2
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BUxxSD2-M series
●Absolute
Maximum Ratings
Parameter
Maximum Power Supply
Voltage Range
Power Dissipation
Maximum Junction
Temperature
Operating Temperature Range
Storage Temperature Range
(*1)
Datasheet
Symbol
V
MAX
Pd
Tjmax
Topr
Tstg
Rating
-0.3 to +6.5
540
(*1)
+125
-40 to +105
-55 to +125
Unit
V
mW
℃
℃
℃
Derate by 5.6mW/℃ when operating above Ta=25℃.(When mounted on a board 70mm×70mm×1.6mm glass-epoxy board, two layer)
●Recommended
Operating Ratings
Parameter
Input Power Supply Voltage
Range
Maximum Output Current
Symbol
V
IN
I
MAX
Limit
1.7 to 6.0
200
Unit
V
mA
●Recommended
Operating Conditions
Parameter
Input capacitor
Output capacitor
Symbol
Cin
Cout
Rating
Min.
0.47
(*2)
0.47
(*2)
Typ.
1.0
1.0
Max.
－
－
Unit
µF
µF
Conditions
A ceramic capacitor is recommended.
A ceramic capacitor is recommended.
DC
device
(*2) Set the value of the capacitor so that it does not fall below the minimum value. Take into consideration the temperature characteristics,
characteristics, and degradation with time.
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© 2012 ROHM Co., Ltd. All rights reserved.
TSZ22111・15・001
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TSZ02201-0RBR0A300020-1-2
2014.02.17 Rev.003
BUxxSD2-M series
●Electrical
Characteristics
(*3)
(Unless otherwise noted, Ta=-40 to 105℃, V
IN
=V
OUT
+1.0V , V
STBY
=1.5V, Cin=1μF, Cout=1μF.)
Limit
PARAMETER
Symbol
Unit
Conditions
MIN.
TYP.
MAX.
V
OUT
×0.98
V
OUT
×1.02
Datasheet
Output Voltage
V
OUT
V
OUT
V
-
Line Regulation
Load Regulation1
Load Regulation2
V
DLI
4
6
10
15
5
10
700
550
370
290
220
180
150
-
-
200
80
2.0
-
-
-
-
300
V
IN
0.5
4.0
mV
mV
mV
mV
mV
mV
mV
mV
mV
mV
mV
mA
mA
mA
µA
µA
dB
mV
mV
V
DLO1
V
DLO2
-
-
-
-
-
-
-
-
-
200
250
-
-
-
-
-
-
-
-
1.1
-0.2
-
0.5
1
400
280
180
150
110
100
85
-
400
100
33
-
68
±65
±5
30
100
-
-
-
I
OUT
=0 to 200mA,
V
OUT
≧2.5V,
V
IN
=V
OUT
+0.5 to 6.0V
V
OUT
＜2.5V,
V
IN
=3.0 to 6.0V
Ta=-40 to +105℃
(*4,5,6)
I
OUT
=10mA
V
OUT
≦2.5V,
V
IN
=3.0 to 6.0V
I
OUT
=10mA
V
OUT
＞2.5V,
V
IN
=V
OUT
+0.5 to 6.0V
I
OUT
=1 to 100mA
I
OUT
=1 to 200mA
1.0V≦V
OUT
＜1.2V,
I
OUT
=100mA
1.2V≦V
OUT
＜1.5V,
I
OUT
=100mA
1.5V≦V
OUT
＜1.7V,
I
OUT
=100mA
1.7V≦V
OUT
＜2.1V,
I
OUT
=100mA
2.1V≦V
OUT
＜2.5V,
I
OUT
=100mA
2.5V≦V
OUT
＜2.8V,
I
OUT
=100mA
2.8V≦V
OUT
, I
OUT
=100mA
V
IN
=V
OUT
+1.0V
(*3)
Vo=V
OUT
×0.98, Ta=25℃
Vo=0V, Ta=25℃
I
OUT
=0mA
V
STBY
=0V
V
RR
=-20dBv,f
RR
=1kHz,I
OUT
=10mA
I
OUT
=1 to 150mA,Trise=Tfall=1µs,
V
IN
=V
OUT
+1.0V
(*5)
V
IN
=V
OUT
+0.5 to V
OUT
+1.0V,
Trise=Tfall =10µs
Output Voltage settled
(*7)
within tolerances
Ta=25℃
Dropout Voltage
V
DROP
Maximum Output Current
Limit Current
Short Current
Circuit Current
Circuit Current (STBY)
Ripple Rejection Ratio
Load Transient Response
Line Transient Response
Output Noise Voltage
Startup Time
STBY Control
Voltage
STBY Pin Current
(*3) V
IN
=3.5V for V
OUT
＜2.5V.
I
OMAX
I
LMAX
I
SHORT
I
GND
I
CCST
R.R.
V
LOT
V
LIT
V
NOIS
T
ST
µVrms Bandwidth 10 to 100kHz
µsec
V
V
µA
ON
OFF
V
STBH
V
STBL
I
STBY
(*4) Operating Conditions are limited by Pd.
(*5) Typical values apply for Ta=25℃.
(*6) V
IN
=3.0V to 6.0V for V
OUT
＜2.5V.
(*7) Startup time=time from EN assertion to V
OUT
×0.98
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TSZ02201-0RBR0A300020-1-2
2014.02.17 Rev.003
BUxxSD2-M series
●Reference
data BU12SD2MG-M (Unless otherwise specified, Ta=25℃.)
Datasheet
1.4
1.2
Output Voltage V
OUT
(V)
1.0
0.8
0.6
0.4
0.2
0.0
0.0
1.0
2.0
3.0
4.0
Input Voltage V
IN
(V)
5.0
6.0
T
a
=25℃
V
IN
=V
STBY
I
OUT
=0mA
I
OUT
=50mA
I
OUT
=200mA
1.25
1.24
1.23
Output Voltage V
OUT
(V)
1.22
1.21
1.20
1.19
1.18
1.17
1.16
1.15
0.0
1.0
2.0
3.0
4.0
Input Voltage V
IN
(V)
Figure 4. Line Regulation
T
a
=25℃
V
IN
=V
STBY
I
OUT
=0mA
I
OUT
=50mA
I
OUT
=200mA
5.0
6.0
Figure 3. Output Voltage vs. Input Voltage
50
45
40
Circuit Current I
GND
(μA)
Output Voltage V
OUT
(V)
35
30
25
20
15
10
5
0
0.0
1.0
2.0
3.0
4.0
Input Voltage V
IN
(V)
5.0
6.0
V
IN
=V
STBY
I
OUT
=0mA
1.25
1.24
1.23
1.22
1.21
1.20
1.19
1.18
1.17
1.16
1.15
0
50
100
150
200
Output Current I
OUT
(mA)
V
IN
=3.5V
V
STBY
=1.5V
Ta=25℃
Ta=105℃
Ta=-40℃
Ta=105℃
Ta=25℃
Ta=-40℃
Figure 5. Circuit Current vs. Input Voltage
Figure 6. Load Regulation
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TSZ22111・15・001
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TSZ02201-0RBR0A300020-1-2
2014.02.17 Rev.003
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