BU665x

CMOS LDO Regulators for Portable Equipments
3ch CMOS LDO Regulators
BU6650NUX,BU6651NUX,BU6652NUX,BU6653NUX,BU6654NUX,BU6655NUX
No.11020EFT06
●Description
BU6650NUX, BU6651NUX, BU6652NUX, BU6653NUX, BU6654NUX, BU6655NUX are high-performance 3ch FULL
CMOS regulator with 200-mA outputs, which is mounted on small package VSON008X2030(2.0 mm  3.0 mm  0.6 mm).
It has excellent noise characteristics and load responsiveness characteristics despite its low circuit current consumption of
120 A. It is most appropriate for various applications such as power supplies for logic IC, RF, and camera modules.
●Features
1) High-accuracy output voltage of 1% (25 mV on 1.5 V & 1.8 V products)
2) High ripple rejection: 70 dB (Typ., 1 kHz, VOUT≦1.8 V)
3) Compatible with small ceramic capacitor (CIN=2.2F, Co=1.0 F)
4) Low current consumption: 120 A
5) ON/OFF control pin (STBY) of output voltage
6) With built-in over current protection circuit and thermal shutdown circuit
7) With built-in output discharge circuit
8) Adopting small package VSON008X2030
●Applications
Battery-powered portable equipment, etc.
●Line up matrix
■ 200 mA
BU665□NUX Series
Product Name
BU6650NUX
BU6651NUX
BU6652NUX
BU6653NUX
BU6654NUX
BU6655NUX
VOUT1
VOUT2
VOUT3
Package
2.8V
2.8V
2.8V
2.8V
3.3V
3.3V
2.8V
1.8V
2.8V
1.8V
1.8V
2.8V
1.8V
1.5V
1.5V
1.8V
1.5V
1.8V
VSON008X2030
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© 2011 ROHM Co., Ltd. All rights reserved.
1/21
2011.09 - Rev.F
BU6650NUX,BU6651NUX,BU6652NUX,BU6653NUX,BU6654NUX,BU6655NUX Technical Note
●Absolute maximum rating
Parameter
Maximum applied power voltage
Power dissipation
Symbol
Ratings
VMAX
-0.3 ~
Unit
+6.0
V
1
Pd
660*
MW
Maximum junction temperature
TjMAX
+125
°C
Operational temperature range
Topr
-40 ~
+85
°C
Storage temperature range
Tstg
-55 ~
+125
°C
*1 PCB (70 mm  70 mm, thickness 1.6-mm glass epoxy) a standard ROHM board is implemented. Reduced to 6.6 mW/C when used at Ta=25C or higher.
●Recommended operating range (Do not exceed Pd.)
Parameter
Input power supply voltage
Maximum output current
Symbol
Ratings
VIN
2.5 ~
IMAX
Unit
5.5
V
200
mA
●Recommended operating conditions
Parameter
Symbol
Ratings
Min.
Typ.
Max.
Unit
Conditions
Input capacitor
CIN
1.0*
2
2.2
-
μF
A ceramic capacitor is recommended.
Output capacitor
CO
0.5*2
1.0
-
μF
A ceramic capacitor is recommended.
*2 Set the capacity value of the capacitor so that it does not fall below the minimum value, taking temperature characteristics,
DC device characteristics, and change with time into consideration.
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© 2011 ROHM Co., Ltd. All rights reserved.
2/21
2011.09 - Rev.F
BU6650NUX,BU6651NUX,BU6652NUX,BU6653NUX,BU6654NUX,BU6655NUX Technical Note
●Electrical characteristics
(Ta=25C, VIN=VOUT+1.0 V (VIN=3.5 V on VOUT=1.8 V and1.5 V products), STBY=1.5 V, CIN=2.2 F, CO=1.0 F, unless
otherwise specified)
Limits
Parameter
Symbol
Unit
Min.
Output voltage
Typ.
Max.
VOUT
×0.99
VOUT
-25mV
VOUT
VOUT
×1.01
VOUT
+25mV
V
IIN1
-
40
95
μA
IIN2
-
80
190
μA
IIN3
-
120
285
μA
ISTBY
-
-
1
μA
VOUT
Operating current
Circuit current (at STBY)
IOUT=10 μA, VOUT≥2.5 V
IOUT=10 μA, VOUT<2.5 V
70
Ripple rejection
RR
55
-
dB
65
Input / Output
voltage difference
VSAT
-
360
720
-
300
600
-
220
460
Conditions
mV
IOUT=0mA
STBY×1=1.5V, STBY×2=0V
IOUT=0mA
STBY×2=1.5V, STBY×1=0V
IOUT=0mA
STBY×3=1.5V
STBY=0 V
VRR=-20dBv, fRR=1kHz,
IOUT=10 mA
1.5 V≦VOUT≦1.8 V
VRR=-20dBv, fRR=1 kHz,
IOUT=10 mA
2.5 V≦VOUT
VOUT=2.8V
(VIN=0.98*VOUT, IOUT=200 mA)
VOUT=3.3V
(VIN=0.98*VOUT, IOUT=200 mA)
VOUT=3.3V
(VIN=0.98*VOUT, IOUT=150 mA)
VIN=VOUT+1.0 V to 5.5 V,
IOUT=10 μA
Line regulation
VDL
-
2
20
mV
Load regulation
VDLO
-
10
80
mV
IOUT=0.01 mA to 100 mA
Over current protection
detection current
ILMAX
220
350
700
mA
Vo=VOUT*0.8
Output short-circuit current
ISHORT
20
70
150
mA
Vo=0 V
Output discharge resistance
RDSC
20
50
80
Ω
Standby pull down resistance
RSTB
500
1000
2000
kΩ
ON
VSTBH
1.5
-
5.5
V
Output Voltage ON
OFF
VSTBL
-0.3
-
0.3
V
Output Voltage OFF
VIN=4.0 V, STBY=0 V
Control Voltage
* This product does not have radiation-proof design.
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© 2011 ROHM Co., Ltd. All rights reserved.
3/21
2011.09 - Rev.F
BU6650NUX,BU6651NUX,BU6652NUX,BU6653NUX,BU6654NUX,BU6655NUX Technical Note
●Block diagram, recommended circuit diagram, and package dimensions (VSON008X2030)
VIN
Device Mark a
CIN
VREF
STBY1
VOUT1
STBY
COUT
Lot No.
OCP
VREF
STBY2
VOUT2
STBY
COUT
OCP
VREF
STBY3
VOUT3
STBY
COUT
OCP
Fig.1 Block diagram
Fig.2 Package dimensions
●Pin configuration diagram
PIN No.
1
PIN NAME
VIN
2
STBY1
3
STBY2
4
STBY3
5
6
7
8
GND
VOUT3
VOUT2
VOUT1
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© 2011 ROHM Co., Ltd. All rights reserved.
DESCRIPTION
INPUT Pin
OUTPUT1 CONTROL Pin
( High : ON, Low : OFF )
OUTPUT2 CONTROL Pin
( High : ON, Low : OFF )
OUTPUT3 CONTROL Pin
( High : ON, Low : OFF )
GROUND Pin
OUTPUT3 Pin
OUTPUT2 Pin
OUTPUT1 Pin
4/21
Device Mark
Series Name
Device Mark a
BU6650NUX
U6650
BU6651NUX
U6651
BU6652NUX
U6652
BU6653NUX
U6653
BU6654NUX
U6654
BU6655NUX
U6655
2011.09 - Rev.F
BU6650NUX,BU6651NUX,BU6652NUX,BU6653NUX,BU6654NUX,BU6655NUX Technical Note
●Input/Output terminal equivalent circuit schematic
6,7,8pin (VOUT)
5pin (GND)
2,3,4pin (STBY)
VIN
1pin (VIN)
VIN
VOUT
STBY
Fig.3 Input / Output equivalent circuit
Capacity value of ceramic capacitor - DC bias characteristics
(Example)
10-V withstand voltage
B1characteristics
GRM188B11A105KA61D
10
0
-10
Capacitance Change [%]
●About input/output capacitor
It is recommended to place a capacitor as close as possible to the
pins between the input terminal and GND or between the output
terminal and GND.
The capacitor between the input terminal and GND becomes valid
when source impedance increases or when wiring is long. The
larger the capacity of the output capacitor between the output
terminal and GND is, the better the stability and characteristics in
output load fluctuation become. However, please check the status
of actual implementation. Ceramic capacitors generally have
variation, temperature characteristics, and direct current bias
characteristics and the capacity value also decreases with time
depending on the usage conditions. It is recommended to select a
ceramic capacitor upon inquiring about detailed data of the related
manufacturer.
10-V withstand voltage
B characteristics
-20
6.3-V withstand voltage
B characteristics
-30
10-V withstand voltage
F characteristics
-40
-50
-60
4-V withstand voltage
X6S characteristics
10-V withstand voltage
F characteristics
-70
-80
-90
-100
0
0.5
1
1.5
2
2.5
3
3.5
DC Bias Voltage [V]
Fig.4 Capacity – bias characteristics
100
ESR [Ω]
●About the equivalent series resistance (ESR) of a ceramic capacitor
Capacitors generally have ESR (equivalent series resistance) and it
operates stably in the ESR-IOUT area shown on the right. Since
ceramic capacitors, tantalum capacitors, electrolytic capacitors, etc.
generally have different ESR, please check the ESR of the
capacitor to be used and use it within the stability area range shown
in the right graph for evaluation of the actual application.
Unstable area
10
Stability area
1
0.1
0.01
0
50
100
150
200
IOUT [mA]
Fig.5 Stability area characteristics (Example)
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© 2011 ROHM Co., Ltd. All rights reserved.
5/21
2011.09 - Rev.F
4
BU6650NUX,BU6651NUX,BU6652NUX,BU6653NUX,BU6654NUX,BU6655NUX Technical Note
●Reference data total device (Ta=25ºC unless otherwise specified.)
30.00
20.00
10.00
0.00
-40
-15
10
35
60
100.00
150.00
80.00
120.00
Input Current (uA)
40.00
Input Current (uA)
Input Current (uA)
50.00
60.00
40.00
20.00
0.00
-40
85
90.00
60.00
30.00
0.00
-15
10
35
60
85
-40
-15
10
Fig. 7 Iin2 vs. Temp
Fig. 6 Iin1 vs. Temp
35
60
85
Temp (°C)
Temp (°C)
Temp (°C)
Fig. 8 Iin3 vs. Temp
3.50
1.000
VIN=3.8V
0.900
3.00
Output Voltage (V)
Gnd Current (uA)
0.800
0.700
0.600
0.500
0.400
0.300
VIN=3.8V
STBY=0V
0.200
0.100
0.000
2.50
2.00
1.50
Temp.=85°C
Temp.=25°C
Temp.=-40°C
1.00
0.50
-0.100
-40
-15
10
35
60
85
0.00
0
Temp. (°C)
0.5
1
1.5
STBY Voltage (V)
Fig. 9 Istby vs Temp (STBY)
Fig. 10 STBY Threshold
●Reference data Vo=3.3V (Ta=25ºC unless otherwise specified.)
3.5
3.34
2.5
2.0
IO=0uA
IO=100uA
IO=50mA
IO=200mA
1.5
1.0
0.5
Temp.=25°C
VIN = STBY
IO=0uA
IO=100uA
IO=50mA
IO=200mA
3.33
3.32
3.31
3.30
3.29
3.28
60
40
Temp=25°C
VIN = STBY
0.5
1
1.5
2
2.5
3
3.5
4
4.5
5
5.5
3.2
3.3
3.4
Vin Voltage (V)
3.5
3.6
0
3.7
1
1.5
2
2.5
110
0.15
Temp.=-40°C
0.10
VIN=0.98 x VOUT
STBY = 1.5V
0.05
Temp.=85°C
8
Gnd Current (uA)
STBY Current (uA)
Temp.=25°C
0.20
Temp.=25°C
6
Temp.=-40°C
4
0.1
0.15
0.2
Fig. 14 Dropout Voltage
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© 2011 ROHM Co., Ltd. All rights reserved.
5.5
Temp.=85°C
Temp.=25°C
90
Temp.=-40°C
80
70
60
VIN = 4.3V
STBY = 1.5V
50
Output Current (A)
5
100
2
0
0.05
4.5
VIN = STBY
0.00
0
4
120
10
Temp.=85°C
3.5
Fig. 13 Circuit Current IGND
0.30
0.25
3
Vin Voltage (V)
Fig. 12 Line Regulation
0.35
Dropout Voltage (V)
0.5
Vin Voltage (V)
Fig. 11 Output Voltage
IO=0uA
VIN = STBY
0
3.25
0
Temp.=-40°C
Temp.=25°C
Temp.=85°C
20
3.27
3.26
0.0
80
Gnd Current (uA)
Output Voltage (V)
Output Voltage (V)
100
3.35
3.0
40
0
0.5
1
1.5
2
2.5
3
3.5
4
4.5
V STBY Voltage (V)
Fig. 15 STBY Input Current
6/21
5
5.5
0
0.05
0.1
0.15
Output Current (A)
Fig. 16 IOUT - IGND
2011.09 - Rev.F
0.2
BU6650NUX,BU6651NUX,BU6652NUX,BU6653NUX,BU6654NUX,BU6655NUX Technical Note
3.50
3.35
3.00
Temp.=25°C
Temp.=-40°C
3.31
3.30
3.29
3.28
Temp.=85°C
3.27
VIN = 4.3V
STBY = 1.5V
3.26
3.00
VIN=3.8V
VIN=5.5V
2.50
VIN=4.3V
2.00
1.50
1.00
STBY = 1.5V
Temp=25℃
0.50
3.25
Output Voltage (V)
3.32
Output Voltage (V)
3.33
Output Voltage (V)
3.50
VIN=4.3V
3.34
2.50
2.00
1.50
0.50
0.00
0
0.05
0.1
0.15
0.00
0
0.2
0.1
0.2
0.3
0.4
0.5
0.6
0
Fig. 17 Load Regulation
1.5
Fig. 19 STBY Threshold
50.00
1.000
3.34
0.900
3.32
3.31
3.30
3.29
3.28
VIN=4.3V
STBY=1.5V
Io=0.1mA
3.27
3.26
0.800
40.00
30.00
20.00
VIN=4.3V
STBY=1.5V
Io=0mA
10.00
3.25
Gnd Current (uA)
3.33
Gnd Current (uA)
Output Voltage (V)
1
STBY Voltage (V)
Fig. 18 OCP Threshold
3.35
0.700
0.600
0.500
0.400
0.300
-15
10
35
60
85
0.100
0.000
-0.100
-40
Temp. (°C)
-15
10
35
60
85
-40
Fig. 21 IGND vs Temp
40
30
Vin= 4.3V
Io=10mA
Ta = 25℃
60
f= 0 .1 kHz
50
f= 1 0 kHz
40
30
f= 1 0 0 kHz
20
10
Co=1.0μF
Cin=none
Iout=10mA
temp=25℃
0
0
3.3
10
100
1000
Frequency (kHz)
Fig. 23 Ripple Rejection VS Freq.
4.3
Fig. 24 Ripple Rejection VS VIN
Fig. 26 Load Response
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© 2011 ROHM Co., Ltd. All rights reserved.
5.3
Input Voltage VIN[V]
O u tpu t N o ise D e n sity [μ V / √ H z ]
Ripple Rejection [dB]
50
60
85
1.8
f= 1 kHz
70
60
35
Fig. 22 IGND vs Temp (STBY)
80
70
1
10
Temp. (°C)
80
10
-15
Temp. (°C)
Fig. 20 VOUT vs Temp
20
VIN=4.3V
STBY=0V
0.200
0.00
-40
R ipple R e je c tio n (dB )
0.5
Output Current (A)
Output Current (A)
0.1
Temp.=85°C
Temp.=25°C
Temp.=-40°C
1.00
1.6
Co=1.0μF
Cin=1.0μF
Iout=10mA
temp=25℃
1.4
1.2
1
0.8
0.6
0.4
0.2
0
0.1
1
10
Frequency f [kHz]
100
Fig. 25 Output Noise Spectral
Density VS Freq.
Fig. 27 Load Response
7/21
2011.09 - Rev.F
BU6650NUX,BU6651NUX,BU6652NUX,BU6653NUX,BU6654NUX,BU6655NUX Technical Note
Fig. 28 Load Response
Fig. 29 Load Response
Fig. 30 Load Response
Current Pulse=10kHz
Fig. 31 Load Response
Current Pulse=10kHz
Fig. 33 Load Response
Current Pulse=100kHz
Fig. 32 Load Response
Current Pulse=100kHz
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© 2011 ROHM Co., Ltd. All rights reserved.
8/21
2011.09 - Rev.F
BU6650NUX,BU6651NUX,BU6652NUX,BU6653NUX,BU6654NUX,BU6655NUX Technical Note
Fig. 34 Start Up Time
Iout = 0mA
Fig. 37 Start Up Time(STBY=VIN)
Iout = 200mA
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© 2011 ROHM Co., Ltd. All rights reserved.
Fig. 35 Start Up Time
Iout = 200mA
Fig. 38 Discharge Time
Iout = 0mA
9/21
Fig. 36 Start Up Time (STBY=VIN)
Iout = 0mA
Fig. 39 VIN Response
Iout = 10mA
2011.09 - Rev.F
BU6650NUX,BU6651NUX,BU6652NUX,BU6653NUX,BU6654NUX,BU6655NUX Technical Note
●Reference data Vo=2.8V (Ta=25ºC unless otherwise specified.)
3.5
IO=0uA
2.84
2.5
2.0
IO=0uA
IO=100uA
IO=50mA
IO=200mA
1.5
1.0
Temp.=25°C
VIN = STBY
0.5
0.0
IO=0uA
IO=100uA
IO=50mA
IO=200mA
2.83
2.82
2.81
2.80
2.79
2.78
60
40
0.5
1
1.5
2
2.5
3
3.5
4
4.5
5
Temp.=25°C
2.76
VIN = STBY
5.5
0
2.7
2.8
2.9
Vin Voltage (V)
3
3.1
3.2
0 0.5 1 1.5 2 2.5 3 3.5 4 4.5 5 5.5
Vin Voltage (V)
Fig. 40 Output Voltage
Vin Voltage (V)
Fig. 42 Circuit Current IGND
Fig. 41 Line Regulation
10
0.40
120
0.35
110
Temp.=85°C
0.25
Temp.=25°C
0.20
Temp.=-40°C
0.15
0.10
8
Temp.=85°C
Temp.=25°C
6
Temp.=-40°C
4
Temp.=85°C
100
90
Temp.=25°C
80
70
Temp.=-40°C
60
2
VIN=0.98 x VOUT
0.05
Gnd Current (uA)
0.30
STBY Current (uA)
Dropout Voltage (V)
Temp.=-40°C
Temp.=25°C
Temp.=85°C
20
2.77
2.75
0
VIN = STBY
80
Gnd Current (uA)
Output Voltage (V)
Output Voltage (V)
100
2.85
3.0
VIN = 3.8V
50
VIN = STBY
STBY = 1.5V
STBY = 1.5V
40
0
0.00
0
0.05
0.1
0.15
0
0.2
0.5
1
1.5
2
2.5
3
3.5
4
4.5
5
0
5.5
0.05
Fig. 44 STBY Input Current
Fig. 43 Dropout Voltage
0.15
0.2
Output Currnt (A)
STBY Voltage (V)
Output Current (A)
0.1
Fig. 45 IOUT - IGND
2.85
Output Voltage (V)
Output Voltage (V)
2.84
2.83
2.82
2.81
2.80
2.79
2.78
VIN=3.8V
STBY=1.5V
Io=0.1mA
2.77
2.76
2.75
-40
-15
10
35
60
85
Temp. (°C)
Fig. 47 OCP Threshold
80
80
1.6
f= 0 .1 kHz
70
60
Ripple Rejection [dB]
Ripple Rejection (dB )
70
Fig. 48 VOUT vs Temp
50
40
30
20
Vin= 3.8V
Io=10mA
Ta = 25℃
10
1
10
f= 1 kH z
50
f= 1 0 kH z
40
f= 1 0 0 kH z
30
Co=1.0μF
Cin=none
Iout=10mA
temp=25℃
20
10
0
0
0.1
60
100
1000
Frequency (kHz)
Fig. 49 Ripple Rejection VS Freq.
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© 2011 ROHM Co., Ltd. All rights reserved.
2.8
3.8
4.8
Input Voltage VIN[V]
Fig. 50 Ripple Rejection VS VIN
10/21
O utput N oise D ensity [μ V /√ H z]
Fig. 46 Load Regulation
Co=1.0μF
Cin=1.0μF
Iout=10mA
temp=25℃
1.4
1.2
1
0.8
0.6
0.4
0.2
0
0.1
1
10
Frequency f [kHz]
100
Fig. 51 Output Noise Spectral
Density VS Freq.
2011.09 - Rev.F
BU6650NUX,BU6651NUX,BU6652NUX,BU6653NUX,BU6654NUX,BU6655NUX Technical Note
Fig. 52 Load Response
Fig. 53 Load Response
Fig. 54 Load Response
Fig. 55 Load Response
⇔
⇔
Fig. 56 Load Response
Current Pulse=10kHz
Fig. 57 Load Response
Current Pulse=10kHz
⇔
⇔
Fig. 58 Load Response
Current Pulse=100kHz
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© 2011 ROHM Co., Ltd. All rights reserved.
Fig. 59 Load Response
Current Pulse=100kHz
11/21
2011.09 - Rev.F
BU6650NUX,BU6651NUX,BU6652NUX,BU6653NUX,BU6654NUX,BU6655NUX Technical Note
Fig. 60 Start Up Time
Iout = 0mA
Fig. 63 Start Up Time(STBY=VIN)
Iout = 200mA
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Fig. 61 Start Up Time
Iout = 200mA
Fig. 64 Discharge Time
Iout = 0mA
12/21
Fig. 62 Start Up Time (STBY=VIN)
Iout = 0mA
Fig. 65 VIN Response
Iout = 10mA
2011.09 - Rev.F
BU6650NUX,BU6651NUX,BU6652NUX,BU6653NUX,BU6654NUX,BU6655NUX Technical Note
●Reference data Vo=1.8V (Ta=25ºC unless otherwise specified.)
3.5
1.84
2.5
2.0
1.5
IO=0uA
IO=100uA
IO=50mA
IO=200mA
1.0
0.5
Temp=25°C
VIN = STBY
IO=0uA
IO=100uA
IO=50mA
IO=200mA
1.83
1.82
1.81
1.80
1.79
1.78
1.77
40
0.5
1
1.5
2
2.5
3
3.5
4
4.5
5
5.5
Temp=-40°C
Temp=25°C
Temp=85°C
20
1.75
1.85
1.95
Vin Voltage (V)
2.05
2.15
2.25
0
2.35
0.5
1
1.5
2
Fig. 67 Line Regulation
3
3.5
4
4.5
5
5.5
Fig. 68 Circuit Current IGND
120
10
140
2.5
Vin Voltage (V)
Vin Voltage (V)
Fig. 66 Output Voltage
IO=0uA
VIN = STBY
0
1.75
0
110
100
80
60
Temp=-40°C
Temp=25°C
Temp=85°C
40
Temp=25°C
6
Temp=-40°C
4
1
1.5
2
2.5
3
3.5
4
4.5
5
80
70
Temp=-40°C
60
VIN = 3.5V
STBY = 1.5V
50
0
0.5
Temp=25°C
90
VIN = STBY
40
0
0
100
2
IO=200mA
VIN = STBY
20
Temp=85°C
Temp=85°C
8
Gnd Current (uA)
STBY Current (uA)
120
Gnd Current (uA)
60
Temp=25°C
VIN = STBY
1.76
0.0
80
Gnd Current (uA)
Output Voltage (V)
Output Voltage (V)
100
1.85
3.0
0
5.5
0.5
1
1.5
2
2.5
3
3.5
4
4.5
5
0
5.5
0.05
Fig. 70 STBY Input Current
Fig. 69 Circuit Current IGND
0.1
0.15
0.2
Output Current (A)
STBY Voltage (V)
Vin Voltage (V)
Fig. 71 IOUT - IGND
3.50
Output Voltage (V)
Output Voltage (V)
Output Voltage (V)
3.00
2.50
2.00
1.50
Temp=85°C
Temp=25°C
Temp=-40°C
1.00
0.50
0.00
0
0.5
1
1.5
STBY Voltage (V)
Fig. 72 Load Regulation
Fig. 73 OCP Threshold
Fig. 74 STBY Threshold
50.00
1.85
1.82
1.81
1.80
1.79
1.78
VIN=3.5V
STBY=1.5V
Io=0.1mA
1.77
1.76
G nd Current (uA)
1.83
Input Current (uA)
Output Voltage (V)
1.84
40.00
30.00
20.00
VIN=3.5V
STBY=1.5V
Io=0mA
10.00
0.00
1.75
-40
-15
10
35
60
85
Temp (°C)
Fig. 75 VOUT vs. Temp
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© 2011 ROHM Co., Ltd. All rights reserved.
-40
-15
10
35
60
Temp (°C)
Fig. 76 IGND vs. Temp
13/21
85
1.000
0.900
0.800
0.700
0.600
0.500
0.400
0.300
0.200
0.100
0.000
-0.100
-40
VIN=3.5V
STBY=0V
-15
10
35
60
85
Temp (°C)
Fig. 77 IGND vs. Temp (STBY)
2011.09 - Rev.F
80
70
70
60
50
40
30
Vin= 3.5V
Io=10mA
Ta = 25℃
20
10
0.7
f= 0 .1 kHz
O u tpu t N oise D e n sity [μ V / √ H z]
80
Ripple Rejection [dB]
R ipple R ejection (dB)
BU6650NUX,BU6651NUX,BU6652NUX,BU6653NUX,BU6654NUX,BU6655NUX Technical Note
f= 1 kHz
60
f= 1 0 kHz
50
40
f= 1 0 0 kHz
30
Co=1.0μF
Cin=none
Iout=10mA
temp=25℃
20
10
0
0
0.1
1
10
100
1000
Frequency (kHz)
Fig. 78 Ripple Rejection VS Freq.
2.5
3.5
4.5
5.5
Co=1.0μF
Cin=1.0μF
Iout=10mA
temp=25℃
0.6
0.5
0.4
0.3
0.2
0.1
0
0.1
1
Input Voltage VIN[V]
Fig. 79 Ripple Rejection VS VIN
10
Frequency f [kHz]
100
Fig. 80 Output Noise Spectral
Density VS Freq.
Fig. 82 Load Response
Fig. 81 Load Response
Fig. 83 Load Response
Fig. 84 Load Response
⇔
Fig. 85 Load Response
Current Pulse=10kHz
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© 2011 ROHM Co., Ltd. All rights reserved.
Fig. 86 Load Response
Current Pulse=10kHz
14/21
2011.09 - Rev.F
BU6650NUX,BU6651NUX,BU6652NUX,BU6653NUX,BU6654NUX,BU6655NUX Technical Note
⇔
Fig. 87 Load Response
Current Pulse=100kHz
Fig. 89 Start Up Time
Iout = 0mA
Fig. 92 Start Up Time(STBY=VIN)
Iout = 200mA
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© 2011 ROHM Co., Ltd. All rights reserved.
Fig. 88 Load Response
Current Pulse=100kHz
Fig. 90 Start Up Time
Iout = 200mA
Fig. 93 Discharge Time
Iout = 0mA
15/21
Fig. 91 Start Up Time (STBY=VIN)
Iout = 0mA
Fig. 94 VIN Response
Iout = 10mA
2011.09 - Rev.F
BU6650NUX,BU6651NUX,BU6652NUX,BU6653NUX,BU6654NUX,BU6655NUX Technical Note
●Reference data Vo=1.5V (Ta=25ºC unless otherwise specified.)
100
1.55
1.54
1.5
1.2
IO=0uA
IO=100uA
IO=50mA
IO=200mA
0.9
0.6
Temp=25°C
VIN = STBY
0.3
IO=0uA
IO=100uA
IO=50mA
IO=200mA
1.53
1.52
1.51
1.50
1.49
1.48
1.47
0.5
1
1.5
2
2.5
3
3.5
4
4.5
5
5.5
1.25 1.35 1.45
1.55 1.65 1.75 1.85 1.95
Vin Voltage (V)
40
Temp=-40°C
Temp=25°C
Temp=85°C
0
2.05 2.15 2.25
0.5
1
1.5
Fig. 96 Line Regulation
2
2.5
3
3.5
4
4.5
5
5.5
Fig. 97 Circuit Current IGND
120
10
140
IO=0uA
VIN = STBY
Vin Voltage (V)
Vin Voltage (V)
Fig. 95 Output Voltage
110
120
80
60
Temp=-40°C
Temp=25°C
Temp=85°C
20
Temp=85°C
Temp=85°C
Gnd Current (uA)
100
40
8
STBY Current (uA)
Gnd Current (uA)
60
0
1.45
0
80
20
Temp=25°C
VIN = STBY
1.46
0.0
Gnd Current (uA)
Output Voltage (V)
Output Voltage (V)
1.8
Temp=25°C
6
Temp=-40°C
4
IO=200mA
VIN = STBY
1
1.5
2
2.5
3
3.5
4
4.5
5
80
70
Temp=-40°C
60
VIN = 3.5V
STBY = 1.5V
50
VIN = STBY
40
0
0.5
Temp=25°C
90
2
0
0
100
5.5
0
0.5
1
1.5
Vin Voltage (V)
2
2.5
3
3.5
4
4.5
5
0
5.5
0.05
Fig. 98 Circuit Current IGND
0.1
0.15
0.2
Output Current (A)
STBY Voltage (V)
Fig. 99 STBY Input Current
Fig. 100 IOUT - IGND
3.50
2.00
Temp=25℃
1.75
Output Voltage (V)
Output Voltage (V)
3.00
2.50
VIN=5.5V
2.00
VIN=3.5V
1.50
1.00
VIN=2.0V
0.50
1.50
1.25
1.00
0.75
Temp=85°C
Temp=25°C
Temp=-40°C
0.50
0.25
STBY=1.5V
0.00
0.00
0
0.1
0.2
0.3
0.4
0.5
0.6
0
0.5
Output Current (A)
Fig. 101 Load Regulation
Fig. 102 OCP Threshold
1.55
50.00
1.51
1.50
1.49
1.48
VIN=3.5V
STBY=1.5V
Io=0.1mA
1.47
1.46
1.45
Gnd Current (uA)
Input Current (uA)
Output Voltage (V)
1.52
40.00
30.00
20.00
VIN=3.5V
STBY=1.5V
Io=0mA
10.00
0.00
-40
-15
10
35
60
85
Temp (°C)
Fig. 104 VOUT vs. Temp
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© 2011 ROHM Co., Ltd. All rights reserved.
-40
-15
10
35
60
Temp (°C)
Fig. 105 IGND vs. Temp
16/21
1.5
Fig. 103 STBY Threshold
1.54
1.53
1
STBY Voltage (V)
85
1.000
0.900
0.800
0.700
0.600
0.500
0.400
0.300
0.200
0.100
0.000
-0.100
-40
VIN=3.5V
STBY=0V
-15
10
35
60
85
Temp (°C)
Fig. 106 IGND vs. Temp (STBY)
2011.09 - Rev.F
BU6650NUX,BU6651NUX,BU6652NUX,BU6653NUX,BU6654NUX,BU6655NUX Technical Note
80
0.7
f= 0 .1 kHz
70
Ripple Rejection [dB]
Ripple Re je c tion (dB )
70
O u tpu t N o is e D e n s ity [μ V / √ H z ]
80
60
50
40
30
Vin= 3.5V
Io=10mA
Ta = 25℃
20
10
f= 1 kHz
60
f= 1 0 kHz
50
40
30
f= 1 0 0 kHz
Co=1.0μF
Cin=none
Iout=10mA
temp=25℃
20
10
0
0
2.5
0.1
1
10
100
1000
Frequency (kHz)
Fig. 107 Ripple Rejection vs. Freq.
3.5
4.5
Input Voltage VIN[V]
Fig. 108 Ripple Rejection vs. VIN
(Iout=10 mA)
5.5
Co=1.0μF
Cin=1.0μF
Iout=10mA
temp=25℃
0.6
0.5
0.4
0.3
0.2
0.1
0
0.1
1
10
Frequency f [kHz]
Fig. 109 Output Noise Spectral Density
vs. Freq.
Fig. 110 Load Response
Fig. 111 Load Response
Fig. 112 Load Response
Fig. 113 Load Response
Fig. 114 Load Response
Current Pulse=10 kHz
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© 2011 ROHM Co., Ltd. All rights reserved.
100
Fig. 115 Load Response
Current Pulse=10 kHz
17/21
2011.09 - Rev.F
BU6650NUX,BU6651NUX,BU6652NUX,BU6653NUX,BU6654NUX,BU6655NUX Technical Note
Fig. 116 Load Response
Current Pulse=100 kHz
Fig. 118 Start-up Time
Iout = 0 mA
Fig. 121 Startup Time (STBY=VIN)
Iout = 200mA
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© 2011 ROHM Co., Ltd. All rights reserved.
Fig. 117 Load Response
Current Pulse=100 kHz
Fig. 119 Start-up Time
Iout = 200 mA
Fig. 122 Discharge Time
Iout = 0 mA
18/21
Fig. 120 Start-up Time (STBY=VIN)
Iout = 0 mA
Fig. 123 VIN Response
Iout = 10 mA
2011.09 - Rev.F
BU6650NUX,BU6651NUX,BU6652NUX,BU6653NUX,BU6654NUX,BU6655NUX Technical Note
●About power dissipation (Pd)
As for power dissipation, an approximate estimate of the heat reduction characteristics and internal power consumption of
IC are shown, so please use these for reference. Since power dissipation changes substantially depending on the
implementation conditions (board size, board thickness, metal wiring rate, number of layers and through holes, etc.), it is
recommended to measure Pd on a set board. Exceeding the power dissipation of IC may lead to deterioration of the original
IC performance, such as causing operation of the thermal shutdown circuit or reduction in current capability. Therefore, be
sure to prepare sufficient margin within power dissipation for usage.
Calculation of the maximum internal power consumption of IC (PMAX)
PMAX=(VIN-VOUT1)×IOUT1(MAX.)+(VIN-VOUT2)×IOUT2(MAX.)+(VIN-VOUT3)×IOUT3(MAX.)
(VIN : Input voltage VOUT1,2,3 : Output voltage IOUT(MAX) : Maximum output current)
0.7
0.6
0.66W
* Please design the margin so that PMAX
becomes is than Pd (PMAXPd) within
the usage temperature range.
Pd [W]
0.5
0.4
0.3
- Standard ROHM board Size: 70 mm  70 mm  1.6 mm
Material : Glass epoxy board
0.2
0.1
0
0
25
50
75
85
100
125
Ta [℃]
Fig.124 VSON008X2030
Power dissipation heat reduction characteristics (Reference)
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© 2011 ROHM Co., Ltd. All rights reserved.
19/21
2011.09 - Rev.F
BU6650NUX,BU6651NUX,BU6652NUX,BU6653NUX,BU6654NUX,BU6655NUX Technical Note
●Other notes
- About absolute maximum rating
Breakage may occur when absolute maximum ratings such as applied voltage and operating temperature range are
exceeded. Short mode or open mode cannot be specified at occurrence of a break, so please prepare physical safety
measures (e.g., fuse) if such special mode in which the absolute maximum rating is exceeded can be assumed.
- About GND potential
Please be sure that the potential of the GND terminal is the lowest in any operating condition.
- About thermal design
Please provide thermal design with sufficient margin, taking power dissipation (Pd) in actual usage conditions into
consideration.
- About short between pins and miss-attachment
Please be careful regarding the IC direction and misalignment at attachment onto a printed circuit board. Miss-attachment
may cause a break of IC. Short caused by foreign matter between outputs, output and power supply, or GND may also
lead to a break.
- About operation in a strong electromagnetic field
Please note that usage in a strong electromagnetic field may cause malfunction.
- About common impedance
Please give due consideration to wiring of the power source and GND by reducing common-mode ripple or making ripple
as small as possible (e.g., making the wiring as thick and short as possible, or reducing ripple by LC), etc.
- About STBY terminal voltage
Set STBY terminal voltage to 0.3 V or less to put each channel into a standby state and to 1.5 V or more to put each
channel into an operating state. Do not fix STBY terminal voltage to 0.3 V or more and 1.5 V or less or do not lengthen
the transition time. This may cause malfunction or failure.
When shorting the VIN terminal and STBY terminal for usage, the status will be “STBY=VIN=LOW” at turning the
power OFF, and discharge of the VOUT terminal cannot operate, which means voltage may remain for a certain time in
the VOUT terminal. Since turning the power ON again in this state may cause overshoot, turn the power ON for use after
the VOUT terminal is completely discharged.
- About over current protection circuit
Output has a built-in over current protection circuit, which prevents IC break at load short. Note that this protection circuit
is effective for prevention of breaks due to unexpected accidents. Please avoid usage by which the protection circuit
operates continuously.
- About thermal shutdown
Output is OFF when the thermal circuit operates since a temperature protection circuit is built in to prevent thermal
breakdown. However, it recovers when the temperature returns to a certain temperature. The thermal circuit operates at
emergency such as overheating of IC. Since it is prepared to prevent IC breakdown, please do not use it in a state in
which protection works.
- About reverse current
For applications on which reverse current is assumed to flow into IC, it is recommended to prepare a path to let the
current out by putting a bypass diode between the VIN-VOUT terminals.
Reverse current
VIN
STBY
OUT
GND
Fig.125 Example of bypass diode connection
- About testing on a set board
When connecting a capacitor to a terminal with low impedance for testing on a set board, please be sure to discharge for
each process since IC may be stressed. As a countermeasure against static electricity, prepare grounding in the
assembly process and take sufficient care in transportation and storage. In addition, when connecting a capacitor to a jig
in a testing process, please do so after turning the power OFF and remove it after turning the power OFF.
www.rohm.com
© 2011 ROHM Co., Ltd. All rights reserved.
20/21
2011.09 - Rev.F
BU6650NUX,BU6651NUX,BU6652NUX,BU6653NUX,BU6654NUX,BU6655NUX Technical Note
●Ordering part number
B
U
6
Part No.
5
5
0
N
Part No.
6650
6651
6652
6653
6654
6655
U
X
-
Package
NUX: VSON008X2030
T
R
Packaging and forming specification
TR: Embossed tape and reel
VSON008X2030
<Tape and Reel information>
3.0±0.1
2.0±0.1
0.6MAX
1PIN MARK
0.25
TR
The direction is the 1pin of product is at the upper right when you hold
( reel on the left hand and you pull out the tape on the right hand
)
(0.12)
+0.03
0.02 −0.02
1.5±0.1
4000pcs
0.5
1
4
8
5
1.4±0.1
0.3±0.1
C0.25
Embossed carrier tape
Quantity
Direction
of feed
S
0.08 S
Tape
1pin
+0.05
0.25 −0.04
Reel
(Unit : mm)
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© 2011 ROHM Co., Ltd. All rights reserved.
21/21
Direction of feed
∗ Order quantity needs to be multiple of the minimum quantity.
2011.09 - Rev.F
Datasheet
Notice
Precaution on using ROHM Products
1.
Our Products are designed and manufactured for application in ordinary electronic equipments (such as AV equipment,
OA equipment, telecommunication equipment, home electronic appliances, amusement equipment, etc.). If you
(Note 1)
, transport
intend to use our Products in devices requiring extremely high reliability (such as medical equipment
equipment, traffic equipment, aircraft/spacecraft, nuclear power controllers, fuel controllers, car equipment including car
accessories, safety devices, etc.) and whose malfunction or failure may cause loss of human life, bodily injury or
serious damage to property (“Specific Applications”), please consult with the ROHM sales representative in advance.
Unless otherwise agreed in writing by ROHM in advance, ROHM shall not be in any way responsible or liable for any
damages, expenses or losses incurred by you or third parties arising from the use of any ROHM’s Products for Specific
Applications.
(Note1) Medical Equipment Classification of the Specific Applications
JAPAN
USA
EU
CHINA
CLASSⅢ
CLASSⅡb
CLASSⅢ
CLASSⅢ
CLASSⅣ
CLASSⅢ
2.
ROHM designs and manufactures its Products subject to strict quality control system. However, semiconductor
products can fail or malfunction at a certain rate. Please be sure to implement, at your own responsibilities, adequate
safety measures including but not limited to fail-safe design against the physical injury, damage to any property, which
a failure or malfunction of our Products may cause. The following are examples of safety measures:
[a] Installation of protection circuits or other protective devices to improve system safety
[b] Installation of redundant circuits to reduce the impact of single or multiple circuit failure
3.
Our Products are designed and manufactured for use under standard conditions and not under any special or
extraordinary environments or conditions, as exemplified below. Accordingly, ROHM shall not be in any way
responsible or liable for any damages, expenses or losses arising from the use of any ROHM’s Products under any
special or extraordinary environments or conditions. If you intend to use our Products under any special or
extraordinary environments or conditions (as exemplified below), your independent verification and confirmation of
product performance, reliability, etc, prior to use, must be necessary:
[a] Use of our Products in any types of liquid, including water, oils, chemicals, and organic solvents
[b] Use of our Products outdoors or in places where the Products are exposed to direct sunlight or dust
[c] Use of our Products in places where the Products are exposed to sea wind or corrosive gases, including Cl2,
H2S, NH3, SO2, and NO2
[d] Use of our Products in places where the Products are exposed to static electricity or electromagnetic waves
[e] Use of our Products in proximity to heat-producing components, plastic cords, or other flammable items
[f] Sealing or coating our Products with resin or other coating materials
[g] Use of our Products without cleaning residue of flux (even if you use no-clean type fluxes, cleaning residue of
flux is recommended); or Washing our Products by using water or water-soluble cleaning agents for cleaning
residue after soldering
[h] Use of the Products in places subject to dew condensation
4.
The Products are not subject to radiation-proof design.
5.
Please verify and confirm characteristics of the final or mounted products in using the Products.
6.
In particular, if a transient load (a large amount of load applied in a short period of time, such as pulse. is applied,
confirmation of performance characteristics after on-board mounting is strongly recommended. Avoid applying power
exceeding normal rated power; exceeding the power rating under steady-state loading condition may negatively affect
product performance and reliability.
7.
De-rate Power Dissipation (Pd) depending on Ambient temperature (Ta). When used in sealed area, confirm the actual
ambient temperature.
8.
Confirm that operation temperature is within the specified range described in the product specification.
9.
ROHM shall not be in any way responsible or liable for failure induced under deviant condition from what is defined in
this document.
Precaution for Mounting / Circuit board design
1.
When a highly active halogenous (chlorine, bromine, etc.) flux is used, the residue of flux may negatively affect product
performance and reliability.
2.
In principle, the reflow soldering method must be used; if flow soldering method is preferred, please consult with the
ROHM representative in advance.
For details, please refer to ROHM Mounting specification
Notice - GE
© 2014 ROHM Co., Ltd. All rights reserved.
Rev.002
Datasheet
Precautions Regarding Application Examples and External Circuits
1.
If change is made to the constant of an external circuit, please allow a sufficient margin considering variations of the
characteristics of the Products and external components, including transient characteristics, as well as static
characteristics.
2.
You agree that application notes, reference designs, and associated data and information contained in this document
are presented only as guidance for Products use. Therefore, in case you use such information, you are solely
responsible for it and you must exercise your own independent verification and judgment in the use of such information
contained in this document. ROHM shall not be in any way responsible or liable for any damages, expenses or losses
incurred by you or third parties arising from the use of such information.
Precaution for Electrostatic
This Product is electrostatic sensitive product, which may be damaged due to electrostatic discharge. Please take proper
caution in your manufacturing process and storage so that voltage exceeding the Products maximum rating will not be
applied to Products. Please take special care under dry condition (e.g. Grounding of human body / equipment / solder iron,
isolation from charged objects, setting of Ionizer, friction prevention and temperature / humidity control).
Precaution for Storage / Transportation
1.
Product performance and soldered connections may deteriorate if the Products are stored in the places where:
[a] the Products are exposed to sea winds or corrosive gases, including Cl2, H2S, NH3, SO2, and NO2
[b] the temperature or humidity exceeds those recommended by ROHM
[c] the Products are exposed to direct sunshine or condensation
[d] the Products are exposed to high Electrostatic
2.
Even under ROHM recommended storage condition, solderability of products out of recommended storage time period
may be degraded. It is strongly recommended to confirm solderability before using Products of which storage time is
exceeding the recommended storage time period.
3.
Store / transport cartons in the correct direction, which is indicated on a carton with a symbol. Otherwise bent leads
may occur due to excessive stress applied when dropping of a carton.
4.
Use Products within the specified time after opening a humidity barrier bag. Baking is required before using Products of
which storage time is exceeding the recommended storage time period.
Precaution for Product Label
QR code printed on ROHM Products label is for ROHM’s internal use only.
Precaution for Disposition
When disposing Products please dispose them properly using an authorized industry waste company.
Precaution for Foreign Exchange and Foreign Trade act
Since our Products might fall under controlled goods prescribed by the applicable foreign exchange and foreign trade act,
please consult with ROHM representative in case of export.
Precaution Regarding Intellectual Property Rights
1.
All information and data including but not limited to application example contained in this document is for reference
only. ROHM does not warrant that foregoing information or data will not infringe any intellectual property rights or any
other rights of any third party regarding such information or data. ROHM shall not be in any way responsible or liable
for infringement of any intellectual property rights or other damages arising from use of such information or data.:
2.
No license, expressly or implied, is granted hereby under any intellectual property rights or other rights of ROHM or any
third parties with respect to the information contained in this document.
Other Precaution
1.
This document may not be reprinted or reproduced, in whole or in part, without prior written consent of ROHM.
2.
The Products may not be disassembled, converted, modified, reproduced or otherwise changed without prior written
consent of ROHM.
3.
In no event shall you use in any way whatsoever the Products and the related technical information contained in the
Products or this document for any military purposes, including but not limited to, the development of mass-destruction
weapons.
4.
The proper names of companies or products described in this document are trademarks or registered trademarks of
ROHM, its affiliated companies or third parties.
Notice - GE
© 2014 ROHM Co., Ltd. All rights reserved.
Rev.002
Datasheet
General Precaution
1. Before you use our Pro ducts, you are requested to care fully read this document and fully understand its contents.
ROHM shall n ot be in an y way responsible or liabl e for fa ilure, malfunction or acci dent arising from the use of a ny
ROHM’s Products against warning, caution or note contained in this document.
2. All information contained in this docume nt is current as of the issuing date and subj ect to change without any prior
notice. Before purchasing or using ROHM’s Products, please confirm the la test information with a ROHM sale s
representative.
3.
The information contained in this doc ument is provi ded on an “as is” basis and ROHM does not warrant that all
information contained in this document is accurate an d/or error-free. ROHM shall not be in an y way responsible or
liable for an y damages, expenses or losses incurred b y you or third parties resulting from inaccur acy or errors of or
concerning such information.
Notice – WE
© 2014 ROHM Co., Ltd. All rights reserved.
Rev.001
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