Rohm BU11UC3WG-TR High accuracy detection Datasheet

Datasheet
CMOS LDO Regulator Series for Portable Equipments
Versatile Package
FULL CMOS LDO Regulator
BUxxUC3WG series
●General Description
BUxxUC3WG series is high-performance FULL CMOS
regulator with 300-mA output, which is mounted on
versatile package SSOP5 (2.9 mm  2.8 mm  1.25 mm).
It has excellent noise characteristics and load
responsiveness characteristics despite its low circuit
current consumption of 50A. It is most appropriate for
various applications such as power supplies for logic IC,
RF, and camera modules ROHM’s.
●Key Specifications
 Output voltage:
 Accuracy output voltage:
 Low current consumption:
 Operating temperature range:
1.0V to 3.3V
±1.0% (±25mV)
50μA
-40°C to +85°C
●Applications
Battery-powered portable equipment, etc.
●Package
SSOP5:
●Features
 High accuracy detection
 low current consumption
 Compatible with small ceramic capacitor (Cin=Co=1.0uF)
 With built-in output discharge circuit
 High ripple rejection
 ON/OFF control of output voltage
 With built-in over current protection circuit
and thermal shutdown circuit
 Package SSOP5 is similar to SOT-23-5 (JEDEC)
 Low dropout voltage
2.90mm x 2.80mm x 1.25mm
●Typical Application Circuit
STBY
VIN
VOUT
STBY
VOUT
VIN
GND
GND
GND
Figure 1. Application Circuit
○Product structure：Silicon monolithic integrated circuit
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○This product is not designed for protection against radioactive rays
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Datasheet
BUxxUC3WG series
●Connection Diagram
SSOP5
VOUT
N.C.
Lot. No
Marking
VIN GND STBY
TOP VIEW
●Pin Descriptions
SSOP5
PIN No.
1
2
Symbol
VIN
GND
3
STBY
4
N.C.
5
VOUT
Function
Power Supply Voltage
Grounding
ON/OFF control of output voltage
(High: ON, Low: OFF)
Unconnected Terminal
Output Voltage
●Ordering Information
B
U
x
Part
Number
x
U
Output Voltage
10 : 1.0V
C
3
Low Dropout Voltage
Maximum Output Current
300mA
W
with switch
33 : 3.3V
G
Package
G : SSOP5
-
ｘ
ｘ
Packageing and forming specification
Embossed tape and reel
TR : The pin number 1 is the upper right
TL : The pin number 1 is the lower left
SSOP5
+6°
4° −4°
2.9±0.2
5
1
2
0.2Min.
2.8±0.2
+0.2
1.6 −0.1
4
3
0.05±0.05
1.1±0.05
1.25Max.
+0.05
0.13 −0.03
+0.05
0.42 −0.04
0.95
0.1
(Unit : mm)
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Datasheet
BUxxUC3WG series
●Lineup
Marking
Output
Voltage
Part
Number
Q0
Q2
Q8
R6
Y0
Y6
Y7
1.0V
1.1V
1.8V
2.5V
2.8V
3.2V
3.3V
BU10
BU11
BU18
BU25
BU28
BU32
BU33
●Absolute Maximum Ratings (Ta=25°C)
PARAMETER
Symbol
Power Supply Voltage
VMAX
Power Dissipation
Pd
Limit
-0.3 ～
Unit
+6.0
V
540(*1)
mW
Maximum junction temperature
TjMAX
+125
℃
Operating Temperature Range
Topr
-40 ～ +85
℃
Storage Temperature Range
Tstg
-55 ～ +125
℃
(*1)Pd deleted at 5.4mW/℃ at temperatures above Ta=25℃, mounted on 70×70×1.6 mm glass-epoxy PCB.
●RECOMMENDED OPERATING RANGE (not to exceed Pd)
PARAMETER
Power Supply Voltage
Symbol
Maximum Output Current
Limit
1.7～5.5
Unit
VIN
IMAX
300
mA
V
●OPERATING CONDITIONS
Symbol
MIN.
TYP.
MAX.
Unit
CONDITION
Input Capacitor
PARAMETER
Cin
0.47(*2)
1.0
-
μF
Output Capacitor
Co
0.47(*2)
1.0
-
μF
Ceramic capacitor
recommended
(*2)Make sure that the output capacitor value is not kept lower than this specified level across a variety of temperature and DC bias
characteristic.
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Datasheet
BUxxUC3WG series
●Electrical Characteristics
(Ta=25℃, VIN=VOUT+1.0V (*3), STBY=VIN, Cin=1.0μF, Co=1.0μF, unless otherwise noted.)
PARAMETER
Limit
Symbol
MIN.
TYP.
Unit
MAX.
Conditions
Overall Device
VOUT×0.99
Output Voltage
VOUT
VOUT×1.01
VOUT-25mV
Operating Current
Operating Current (STBY)
Ripple Rejection Ratio
Dropout Voltage
V
VOUT+25mV
IOUT=10μA,VOUT＜2.5V
IIN
-
50
90
μA
IOUT=0mA
ISTBY
-
-
1.0
μA
RR
45
70
-
dB
STBY=0V
VRR=-20dBv,fRR=1kHz,IOUT=10mA,
VIN=3.6V
-
470
700
mV
1.0V≦VOUT＜1.2V(IOUT=300mA)
-
350
500
mV
1.2V≦VOUT＜1.5V(IOUT=300mA)
-
280
380
mV
1.5V≦VOUT＜1.7V(IOUT=300mA)
-
250
320
mV
1.7V≦VOUT＜2.1V(IOUT=300mA)
-
220
260
mV
2.1V≦VOUT＜2.5V(IOUT=300mA)
-
200
220
mV
2.5V≦VOUT(IOUT=300mA)
VSAT
Line Regulation
IOUT=10μA,VOUT≧2.5V
VOUT
VDL
Load Regulation
VDLO
Over-current Protection (OCP)
-
2
20
mV
VIN=VOUT+1.0V to 5.5V(*4), IOUT=10μA
-
25
45
mV
IOUT=0.01mA to 300mA
Limit Current
ILMAX
370
550
-
mA
Vo=VOUT*0.95
Short Current
ISHORT
50
150
300
mA
Vo=0V
RDSC
20
50
80
Ω
VIN=5.5V, STBY=0V, VOUT=2.6V
ISTB
0.1
0.9
8.0
μA
Standby Block
Discharge Resistor
STBY Pin Pull-down Current
STBY Control Voltage
ON
VSTBH
1.2
-
5.5
V
OFF
VSTBL
-0.3
-
0.3
V
STBY=1.5V
○This product is not designed for protection against radioactive rays.
(*3) VIN=2.5V for VOUT≦1.5V
(*4) VIN=2.5V to 3.6V for VOUT≦1.5V
●Block Diagrams
VIN
VIN
1
VREF
VOUT
Cin
VOUT
5
GND
2
OCP
Co
TSD
STBY
STBY
3
STBY
Discharge
Cin･･･1.0μF (Ceramic)
Co ･･･1.0μF (Ceramic)
Figure 2. Block Diagrams
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Datasheet
BUxxUC3WG series
● Reference data
BU10UC3WG
(Ta=25ºC unless otherwise specified.)
LINE REGULATION
LINE REGULATION
1.10
1.08
Vout=1.0V
Iout=300mA
1.08
1.06
1.06
1.04
1.04
1.02
1.02
VOUT[V]
VOUT[V]
1.10
Vout=1.0V
Iout=10mA
1.00
0.98
1.00
0.98
0.96
0.96
0.94
0.94
85℃
25℃
-40℃
0.92
0.90
0.90
1.6 1.7 1.8 1.9 2.0 2.1 2.2 2.3 2.4 2.5 2.6 2.7 2.8 2.9 3.0 3.1 3.2
1.6 1.7 1.8 1.9 2.0 2.1 2.2 2.3 2.4 2.5 2.6 2.7 2.8 2.9 3.0 3.1 3.2
VIN[V]
VIN[V]
Figure 3.
Figure 4.
LOAD REGULATION
1.10
85℃
25℃
-40℃
0.92
OUTPUT VOLTAGE vs TEMPERATURE
1.10
Vout=1.0V
Vout=1.0V
1.08
1.06
1.05
1.02
VOUT[V]
VOUT[V]
1.04
1.00
0.98
1.00
0.96
0.95
0.94
10mA
150mA
300mA
85℃
25℃
-40℃
0.92
0.90
0
50
100
150
200
250
0.90
300
-40
IOUT[mA]
-20
0
20
GROUND PIN CURRENT vs INPUT VOLTAGE
Vout=1.0V
65
60
80
Figure 6.
Figure 5.
70
40
Temperature[℃]
GROUND PIN CURRENT vs LOAD
450
Vout=1.0V
400
60
55
350
50
300
IGND[uA]
IGND[uA]
45
40
35
30
25
250
200
150
20
100
15
85℃
25℃
-40℃
10
5
0
0
2.3
2.5
2.7
2.9
3.1
3.3
85℃
25℃
-40℃
50
0
3.5
50
100
150
VIN[V]
IOUT[mA]
Figure 7.
Figure 8.
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200
250
300
TSZ02201-0RBR0A300110-1-2
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Datasheet
BUxxUC3WG series
● Reference data
BU10UC3WG
(Ta=25ºC unless otherwise specified.)
GROUND PIN CURRENT vs TEMPERATURE
Vout=1.0V
70
90
60
80
85℃
25℃
-40℃
70
ISHDN[nA]
50
IGND[uA]
SHUTDOWN CURRENT vs INPUT VOLTAGE
Vout=1.0V
100
40
30
60
50
40
30
20
20
10
10
0
0
-40
-20
0
20
40
60
Temperature[℃]
2.3
80
2.5
2.7
3.1
3.3
3.5
VIN[V]
Figure 10.
Figure 9.
CURRENT LIMIT vs INPUT VOLTAGE
700
2.9
POWER-SUPPLY RIPPLE REJECTION vs FREQUENCY
100
Vout=1.0V
90
600
10mA
150mA
80
70
PSRR[dB]
ILIM[mA]
500
400
300
60
50
40
30
200
20
85℃
25℃
-40℃
100
10
0
0
2.3
2.5
2.7
2.9
3.1
3.3
10
3.5
100
Figure 11.
20mA/div
100mV/div
100mA/div
100mV/div
1000000
Trise=Tfall=1us
0mA
VOUT
10mA
IOUT
0mA
VOUT
Vout=1.0V
Vout=1.0V
10µs/div
10µs/div
Figure 13.
Figure 14.
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© 2013 ROHM Co., Ltd. All rights reserved.
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100000
LOAD TRANSIENT RESPONSE
200mA
IOUT
10000
Figure 12.
LOAD TRANSIENT RESPONSE
Trise=Tfall=1us
1000
Frequency[Hz]
VIN[V]
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Datasheet
BUxxUA3WNVX シリーズ
● Reference data
BU10UC3WG
(Ta=25ºC unless otherwise specified.)
LOAD TRANSIENT RESPONSE
LOAD TRANSIENT RESPONSE
200mA/div
Trise=Tfall=1us
50mA
IOUT
0mA
100mV/div
100mV/div
50mA/div
Trise=Tfall=1us
VOUT
300mA
IOUT
0mA
VOUT
Vout=1.0V
Vout=1.0V
10µs/div
10µs/div
Figure 15.
Figure 16.
LINE TRANSIENT RESPONSE
LINE TRANSIENT RESPONSE
Slew Rate = 0.5V/µs
1V/div
1V/div
Slew Rate = 0.5V/µs
2.9V
VIN
2.9V
VIN
2.3V
100mV/div
100mV/div
2.3V
VOUT
Vout=1.0V
VOUT
Vout=1.0V
Iout=1mA
Iout=300mA
1ms/div
1ms/div
Figure 17.
Figure 18.
VIN RAMP UP, RAMP DOWN RESPONSE
LINE TRANSIENT RESPONSE
Slew Rate = 0.5V/µs
Vout=1.0V
Iout=1mA
1V/div
3.6V
VIN
VIN
100mV/div
1V/div
2.1V
VOUT
VOUT
Vout=1.0V
Iout=300mA
1ms/div
200ms/div
Figure 20.
Figure 19.
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Datasheet
BUxxUA3WNVX シリーズ
● Reference data
BU10UC3WG
(Ta=25ºC unless otherwise specified.)
START UP TIME
DISCHARGE TIME
1.5V
1V/div
1V/div
1.5V
STBY
0V
VOUT
1V/div
1V/div
STBY
Vout=1.0V
Iout=0mA
Cout=1.0uF
0V
VOUT
Vout=1.0V
Iout=0mA
Cout=1.0uF
20µs/div
40µs/div
Figure 21.
Figure 22.
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Datasheet
BUxxUC3WG シリーズ
● Reference data
BU11UC3WG
(Ta=25ºC unless otherwise specified.)
LINE REGULATION
LINE REGULATION
1.20
1.18
Vout=1.1V
Iout=300mA
1.18
1.16
1.16
1.14
1.14
1.12
1.12
VOUT[V]
VOUT[V]
1.20
Vout=1.1V
Iout=10mA
1.10
1.08
1.06
1.10
1.08
1.06
1.04
1.04
85℃
25℃
-40℃
1.02
1.00
85℃
25℃
-40℃
1.02
1.00
1.6 1.7 1.8 1.9 2.0 2.1 2.2 2.3 2.4 2.5 2.6 2.7 2.8 2.9 3.0 3.1 3.2
1.6 1.7 1.8 1.9 2.0 2.1 2.2 2.3 2.4 2.5 2.6 2.7 2.8 2.9 3.0 3.1 3.2
VIN[V]
VIN[V]
Figure 23.
LOAD REGULATION
1.20
OUTPUT VOLTAGE vs TEMPERATURE
1.20
Vout=1.1V
1.18
1.18
1.16
1.16
1.14
1.14
1.12
1.12
VOUT[V]
VOUT[V]
Figure 24.
1.10
1.08
1.06
Vout=1.1V
1.10
1.08
1.06
1.04
1.04
85℃
25℃
-40℃
1.02
1.00
0
50
100
150
200
250
10mA
150mA
300mA
1.02
1.00
300
-40
IOUT[mA]
-20
0
20
GROUND PIN CURRENT vs INPUT VOLTAGE
Vout=1.1V
65
60
80
Figure 26.
Figure 25.
70
40
Temperature[℃]
GROUND PIN CURRENT vs LOAD
450
Vout=1.1V
400
60
55
350
50
300
IGND[uA]
IGND[uA]
45
40
35
30
25
250
200
150
20
100
15
85℃
25℃
-40℃
10
5
0
0
2.3
2.5
2.7
2.9
3.1
3.3
0
3.5
50
100
150
200
250
300
IOUT[mA]
VIN[V]
Figure28.
Figure 27.
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25℃
-40℃
50
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Datasheet
BUxxUC3WG シリーズ
● Reference data
BU11UC3WG
(Ta=25ºC unless otherwise specified.)
GROUND PIN CURRENT vs TEMPERATURE
Vout=1.1V
70
SHUTDOWN CURRENT vs INPUT VOLTAGE
Vout=1.1V
100
90
60
80
85℃
25℃
-40℃
70
ISHDN[nA]
IGND[uA]
50
40
30
60
50
40
30
20
20
10
10
0
0
-40
-20
0
20
40
60
Temperature[℃]
2.3
80
2.5
2.7
3.1
3.3
3.5
VIN[V]
Figure 30.
Figure 29.
CURRENT LIMIT vs INPUT VOLTAGE
700
2.9
POWER-SUPPLY RIPPLE REJECTION vs FREQUENCY
100
Vout=1.1V
90
600
10mA
150mA
80
70
PSRR[dB]
ILIM[mA]
500
400
300
60
50
40
30
200
20
85℃
25℃
-40℃
100
10
0
0
2.3
2.5
2.7
2.9
3.1
3.3
10
3.5
100
Figure 31.
20mA/div
100mV/div
100mA/div
100mV/div
1000000
Trise=Tfall=1us
0mA
VOUT
10mA
IOUT
0mA
VOUT
Vout=1.1V
Vout=1.1V
10µs/div
10µs/div
Figure 33.
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100000
LOAD TRANSIENT RESPONSE
200mA
IOUT
10000
Figure 32.
LOAD TRANSIENT RESPONSE
Trise=Tfall=1us
1000
Frequency[Hz]
VIN[V]
Figure 34.
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TSZ02201-0RBR0A300110-1-2
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Datasheet
BUxxUC3WG シリーズ
● Reference data
BU11UC3WG
(Ta=25ºC unless otherwise specified.)
LOAD TRANSIENT RESPONSE
LOAD TRANSIENT RESPONSE
200mA/div
Trise=Tfall=1us
50mA
IOUT
0mA
100mV/div
100mV/div
50mA/div
Trise=Tfall=1us
VOUT
300mA
IOUT
0mA
VOUT
Vout=1.1V
Vout=1.1V
10µs/div
10µs/div
Figure 35.
Figure 36.
LINE TRANSIENT RESPONSE
LINE TRANSIENT RESPONSE
Slew Rate = 0.5V/µs
1V/div
1V/div
Slew Rate = 0.5V/µs
2.9V
VIN
2.9V
VIN
2.3V
100mV/div
100mV/div
2.3V
VOUT
Vout=1.1V
VOUT
Vout=1.1V
Iout=1mA
Iout=300mA
1ms/div
1ms/div
Figure 37.
Figure 38.
VIN RAMP UP, RAMP DOWN RESPONSE
LINE TRANSIENT RESPONSE
Slew Rate = 0.5V/µs
Vout=1.1V
Iout=1mA
1V/div
3.6V
VIN
VIN
100mV/div
1V/div
2.1V
VOUT
VOUT
Vout=1.1V
Iout=300mA
1ms/div
200ms/div
Figure 40.
Figure 39.
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Datasheet
BUxxUC3WG シリーズ
● Reference data
BU11UC3WG
(Ta=25ºC unless otherwise specified
START UP TIME
DISCHARGE TIME
1.5V
1V/div
1V/div
1.5V
STBY
0V
VOUT
1V/div
1V/div
STBY
Vout=1.1V
Iout=0mA
Cout=1.0uF
0V
VOUT
Vout=1.1V
Iout=0mA
Cout=1.0uF
20µs/div
40µs/div
Figure 41.
Figure 42.
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Datasheet
BUxxUC3WG シリーズ
● Reference data
BU18UC3WG
(Ta=25ºC unless otherwise specified.)
LINE REGULATION
LINE REGULATION
1.90
1.88
Vout=1.8V
Iout=300mA
1.88
1.86
1.86
1.84
1.84
1.82
1.82
VOUT[V]
VOUT[V]
1.90
Vout=1.8V
Iout=10mA
1.80
1.78
1.76
1.80
1.78
1.76
1.74
1.74
85℃
25℃
-40℃
1.72
1.70
85℃
25℃
-40℃
1.72
1.70
2.0 2.1 2.2 2.3 2.4 2.5 2.6 2.7 2.8 2.9 3.0 3.1 3.2 3.3 3.4 3.5 3.6
2.0 2.1 2.2 2.3 2.4 2.5 2.6 2.7 2.8 2.9 3.0 3.1 3.2 3.3 3.4 3.5 3.6
VIN[V]
VIN[V]
Figure 44.
Figure 43.
LOAD REGULATION
OUTPUT VOLTAGE vs TEMPERATURE
1.90
Vout=1.8V
1.88
1.88
1.86
1.86
1.84
1.84
1.82
1.82
VOUT[V]
VOUT[V]
1.90
1.80
1.78
1.76
Vout=1.8V
1.80
1.78
1.76
1.74
1.74
85℃
25℃
-40℃
1.72
1.70
0
50
100
150
200
250
10mA
150mA
300mA
1.72
1.70
300
-40
-20
0
20
Figure 45.
65
60
80
Figure 46.
GROUND PIN CURRENT vs INPUT VOLTAGE
Vout=1.8V
70
40
Temperature[℃]
IOUT[mA]
GROUND PIN CURRENT vs LOAD
450
Vout=1.8V
400
60
55
350
50
300
IGND[uA]
IGND[uA]
45
40
35
30
25
250
200
150
20
100
15
85℃
25℃
-40℃
10
5
0
0
2.3
2.5
2.7
2.9
3.1
3.3
0
3.5
50
100
150
200
250
300
IOUT[mA]
VIN[V]
Figure 47.
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© 2013 ROHM Co., Ltd. All rights reserved.
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85℃
25℃
-40℃
50
Figure 48.
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Datasheet
BUxxUC3WG シリーズ
● Reference data
BU18UC3WG
(Ta=25ºC unless otherwise specified.)
GROUND PIN CURRENT vs TEMPERATURE
Vout=1.8V
70
SHUTDOWN CURRENT vs INPUT VOLTAGE
Vout=1.8V
100
90
60
80
85℃
25℃
-40℃
70
ISHDN[nA]
IGND[uA]
50
40
30
60
50
40
30
20
20
10
10
0
0
-40
-20
0
20
40
60
Temperature[℃]
2.3
80
2.5
2.7
2.9
Figure 49.
3.3
3.5
Figure 50.
CURRENT LIMIT vs INPUT VOLTAGE
700
3.1
VIN[V]
POWER-SUPPLY RIPPLE REJECTION vs FREQUENCY
100
Vout=1.8V
90
600
10mA
150mA
80
70
PSRR[dB]
ILIM[mA]
500
400
300
60
50
40
30
200
20
85℃
25℃
-40℃
100
10
0
0
2.3
2.5
2.7
2.9
3.1
3.3
10
3.5
100
Figure 51.
20mA/div
100mV/div
100mA/div
100mV/div
1000000
Trise=Tfall=1us
0mA
VOUT
10mA
IOUT
0mA
VOUT
Vout=1.8V
Vout=1.8V
10µs/div
10µs/div
Figure 54.
Figure53.
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© 2013 ROHM Co., Ltd. All rights reserved.
TSZ22111・15・001
100000
LOAD TRANSIENT RESPONSE
200mA
IOUT
10000
Figure 52.
LOAD TRANSIENT RESPONSE
Trise=Tfall=1us
1000
Frequency[Hz]
VIN[V]
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BUxxUC3WG シリーズ
● Reference data
BU18UC3WG
(Ta=25ºC unless otherwise specified.)
LOAD TRANSIENT RESPONSE
LOAD TRANSIENT RESPONSE
200mA/div
Trise=Tfall=1us
50mA
IOUT
0mA
100mV/div
100mV/div
50mA/div
Trise=Tfall=1us
VOUT
300mA
IOUT
0mA
VOUT
Vout=1.8V
Vout=1.8V
10µs/div
10µs/div
Figure 55.
Figure 56.
LINE TRANSIENT RESPONSE
LINE TRANSIENT RESPONSE
Slew Rate = 0.5V/µs
1V/div
1V/div
Slew Rate = 0.5V/µs
2.9V
VIN
2.9V
VIN
2.3V
100mV/div
100mV/div
2.3V
VOUT
Vout=1.8V
VOUT
Vout=1.8V
Iout=1mA
Iout=300mA
1ms/div
1ms/div
Figure 57.
Figure 58.
VIN RAMP UP, RAMP DOWN RESPONSE
LINE TRANSIENT RESPONSE
Slew Rate = 0.5V/µs
Vout=1.8V
Iout=1mA
1V/div
3.6V
VIN
VIN
100mV/div
1V/div
2.1V
VOUT
VOUT
Vout=1.8V
Iout=300mA
1ms/div
200ms/div
Figure 60.
Figure 59.
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Datasheet
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● Reference data
BU18UC3WG
(Ta=25ºC unless otherwise specified.)
DISCHARGE TIME
START UP TIME
1.5V
1V/div
1V/div
1.5V
STBY
0V
VOUT
1V/div
1V/div
STBY
Vout=1.8V
Iout=0mA
Cout=1.0uF
VOUT
Vout=1.8V
Iout=0mA
Cout=1.0uF
40µs/div
20µs/div
Figure 61.
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BUxxUC3WG シリーズ
● Reference data
BU33UC3WG
(Ta=25ºC unless otherwise specified.)
LINE REGULATION
LINE REGULATION
3.40
3.38
Vout=3.3V
Iout=300mA
3.38
3.36
3.36
3.34
3.34
3.32
3.32
VOUT[V]
VOUT[V]
3.40
Vout=3.3V
Iout=10mA
3.30
3.28
3.26
85℃
25℃
-40℃
3.30
3.28
3.26
3.24
3.24
85℃
25℃
-40℃
3.22
3.20
3.22
3.20
3.6 3.7 3.8 3.9 4.0 4.1 4.2 4.3 4.4 4.5 4.6 4.7 4.8 4.9 5.0 5.1 5.2
3.6 3.7 3.8 3.9 4.0 4.1 4.2 4.3 4.4 4.5 4.6 4.7 4.8 4.9 5.0 5.1 5.2
VIN[V]
VIN[V]
Figure 63.
Figure 64.
LOAD REGULATION
3.40
3.38
85℃
25℃
-40℃
3.34
3.32
3.32
3.30
3.28
3.30
3.28
3.26
3.26
3.24
3.24
3.22
3.22
3.20
50
100
150
200
250
10mA
150mA
300mA
3.36
3.34
0
Vout=3.3V
3.38
VOUT[V]
VOUT[V]
3.36
OUTPUT VOLTAGE vs TEMPERATURE
3.40
Vout=3.3V
3.20
300
-40
IOUT[mA]
-20
0
20
GROUND PIN CURRENT vs INPUT VOLTAGE
Vout=3.3V
65
60
80
Figure 66.
Figure 65.
70
40
Temperature[℃]
GROUND PIN CURRENT vs LOAD
450
Vout=3.3V
400
60
55
350
50
300
IGND[uA]
IGND[uA]
45
40
35
30
25
250
200
150
20
15
100
85℃
25℃
-40℃
10
5
85℃
25℃
-40℃
50
0
0
3.6
4.1
4.6
0
5.1
100
150
200
250
300
Figure 68.
Figure 67.
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50
IOUT[mA]
VIN[V]
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Datasheet
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BU33UC3WG
● Reference data
(Ta=25ºC unless otherwise specified.)
GROUND PIN CURRENT vs TEMPERATURE
Vout=3.3V
70
SHUTDOWN CURRENT vs INPUT VOLTAGE
Vout=3.3V
100
90
85℃
25℃
-40℃
60
80
70
ISHDN[nA]
IGND[uA]
50
40
30
60
50
40
30
20
20
10
10
0
0
-40
-20
0
20
40
Temperature[℃]
60
3.5
80
3.7
3.9
CURRENT LIMIT vs INPUT VOLTAGE
800
90
700
80
4.9
5.1
10mA
150mA
70
PSRR[dB]
ILIM[mA]
4.7
POWER-SUPPLY RIPPLE REJECTION vs FREQUENCY
100
Vout=3.3V
500
400
300
60
50
40
30
200
20
85℃
25℃
-40℃
100
10
0
0
4.0
4.2
4.4
4.6
4.8
5.0
5.2
5.4
10
5.6
100
Figure 71.
Trise=Tfall=1us
20mA/div
100mV/div
0mA
VOUT
10mA
IOUT
0mA
VOUT
Vout=3.3V
Vout=3.3V
10µs/div
10µs/div
Figure 74.
Figure 73.
www.rohm.com
© 2013 ROHM Co., Ltd. All rights reserved.
TSZ22111・15・001
100000
LOAD TRANSIENT RESPONSE
200mA
IOUT
10000
Figure 72.
LOAD TRANSIENT RESPONSE
Trise=Tfall=1us
1000
Frequency[Hz]
VIN[V]
100mA/div
4.5
Figure 70.
600
100mV/div
4.3
VIN[V]
Figure 69.
900
4.1
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Datasheet
BUxxUC3WG シリーズ
● Reference data
BU33UC3WG
(Ta=25ºC unless otherwise specified.)
LOAD TRANSIENT RESPONSE
LOAD TRANSIENT RESPONSE
200mA/div
Trise=Tfall=1us
50mA
IOUT
0mA
100mV/div
100mV/div
50mA/div
Trise=Tfall=1us
VOUT
300mA
IOUT
0mA
VOUT
Vout=3.3V
Vout=3.3V
10µs/div
10µs/div
Figure 75.
Figure 76.
LINE TRANSIENT RESPONSE
LINE TRANSIENT RESPONSE
Slew Rate = 0.5V/µs
1V/div
1V/div
Slew Rate = 0.5V/µs
4.3V
VIN
4.3V
VIN
3.7V
100mV/div
100mV/div
3.7V
VOUT
Vout=3.3V
VOUT
Vout=3.3V
Iout=1mA
Iout=300mA
1ms/div
1ms/div
Figure 77.
Figure 78.
VIN RAMP UP, RAMP DOWN RESPONSE
LINE TRANSIENT RESPONSE
Vout=3.3V
Slew Rate = 0.5V/µs
Iout=1mA
1V/div
5.0V
VIN
VIN
100mV/div
1V/div
3.5V
VOUT
VOUT
Vout=3.3V
Iout=300mA
1ms/div
200ms/div
Figure 80.
Figure 79.
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Datasheet
BUxxUC3WG シリーズ
● Reference data
BU33UC3WG
(Ta=25ºC unless otherwise specified.)
START UP TIME
DISCHARGE TIME
1.5V
1V/div
1V/div
1.5V
STBY
0V
VOUT
1V/div
1V/div
STBY
Vout=3.3V
Iout=0mA
Cout=1.0uF
Vout=3.3V
Iout=0mA
Cout=1.0uF
VOUT
40µs/div
20µs/div
Figure 81.
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© 2013 ROHM Co., Ltd. All rights reserved.
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Figure 82.
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Datasheet
BUxxUC3WG シリーズ
●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-VOUT)×IOUT(MAX.) (VIN： Input voltage VOUT： Output voltage IOUT(MAX)： Maximum output
current)
 Measurement conditions
Standard ROHM Board
Layout of Board for
Measurement
Top Layer (Top View)
IC
Implementation
Position
Bottom Layer (Top View)
Measurement State
Board Material
Board Size
Top layer
Wiring
Bottom
Rate
layer
Through Hole
Power Dissipation
Thermal Resistance
With board implemented (Wind speed 0 m/s)
Glass epoxy resin (Double-side board)
70 mm x 70 mm x 1.6 mm
Metal (GND) wiring rate: Approx. 0%
Metal (GND) wiring rate: Approx. 50%
Diameter 0.5mm x 6 holes
0.54W
θja=185.2°C/W
0.6
0.5
0.54W
Standard ROHM
Board
Pd [W]
0.4
0.3
* Please design the margin so that
PMAX becomes is than Pd (PMAXPd)
within the usage temperature range
0.2
0.1
0
0
25
50
75
85
100
125
Ta [℃]
Figure 83. SSOP5 Power dissipation heat reduction characteristics (Reference)
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●Operation Notes
1.) Absolute maximum ratings
Use of the IC in excess of absolute maximum ratings (such as the input voltage or operating temperature range) may result
in damage to the IC. Assumptions should not be made regarding the state of the IC (e.g., short mode or open mode) when
such damage is suffered. If operational values are expected to exceed the maximum ratings for the device, consider
adding protective circuitry (such as fuses) to eliminate the risk of damaging the IC.
2.) GND potential
The potential of the GND pin must be the minimum potential in the system in all operating conditions.
Never connect a potential lower than GND to any pin, even if only transiently.
3.) Thermal design
Use a thermal design that allows for a sufficient margin for that package power dissipation rating (Pd) under actual
operating conditions.
4.) Inter-pin shorts and mounting errors
Use caution when orienting and positioning the IC for mounting on printed circuit boards. Improper mounting
or shorts between pins may result in damage to the IC.
5.) Common impedance
Wiring traces should be as short and wide as possible to minimize common impedance. Bypass capacitors
should be use to keep ripple to a minimum.
6.) Voltage of STBY pin
To enable standby mode for all channels, set the STBY pin to 0.3 V or less, and for normal operation, to 1.2 V or more.
Setting STBY to a voltage between 0.3 and 1.2 V may cause malfunction and should be avoided. Keep transition time
between high and low (or vice versa) to a minimum.
Additionally, if STBY is shorted to VIN, the IC will switch to standby mode and disable the output discharge circuit, causing
a temporary voltage to remain on the output pin. If the IC is switched on again while this voltage is present, overshoot
may occur on the output. Therefore, in applications where these pins are shorted, the output should always be completely
discharged before turning the IC on.
7.) Over-current protection circuit (OCP)
This IC features an integrated over-current and short-protection circuitry on the output to prevent destruction of the IC
when the output is shorted. The OCP circuitry is designed only to protect the IC from irregular conditions (such as motor
output shorts) and is not designed to be used as an active security device for the application. Therefore, applications
should not be designed under the assumption that this circuitry will engage.
8.) Thermal shutdown circuit (TSD)
This IC also features a thermal shutdown circuit that is designed to turn the output off when the junction temperature of the
IC exceeds about 150℃. This feature is intended to protect the IC only in the event of thermal overload and is not
designed to guarantee operation or act as an active security device for the application. Therefore, applications should not
be designed under the assumption that this circuitry will engage.
9.) Input/output capacitor
Capacitors must be connected between the input/output pins and GND for stable operation, and should be physically
mounted as close to the IC pins as possible. The input capacitor helps to counteract increases in power supply
impedance, and increases stability in applications with long or winding power supply traces. The output capacitance
value is directly related to the overall stability and transient response of the regulator, and should be set to the largest
possible value for the application to increase these characteristics. During design, keep in mind that in general, ceramic
capacitors have a wide range of tolerances, temperature coefficients and DC bias characteristics, and that their
capacitance values tend to decrease over time. Confirm these details before choosing appropriate capacitors for your
application.(Please refer the technical note, regarding ceramic capacitor of recommendation)
Cout=1.0uF Cin=1.0uF Temp=25℃
Unstable
ESR[Ω]
10.) About the equivalent series resistance (ESR) of a ceramic capacitor
Capacitors generally have ESR (equivalent series resistance)
100
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
10
the ESR of the capacitor to be used and use it within the
stability area range shown in the right graph for evaluation
1
of the actual application.
0.1
Stable
0.01
0
100
200
IOUT[mA]
300
400
Figure 84. Stable region (example)
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Datasheet
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●Revision History
Date
Revision
27.Jun.2013
001
02.Jul.2013
002
16.Apr.2014
23.Jan.2015
29.Jan.2015
003
004
005
Changes
New Release
Absolute Maximum Ratings of Power Supply Voltage is changed.
Adding reference data.
Adding reference data.
Line up is changed.
Reference data is changed.
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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 on a surface-mount products, the flow soldering method must
be used on a through hole mount products. If the flow soldering method is preferred on a surface-mount products,
please consult with the ROHM representative in advance.
For details, please refer to ROHM Mounting specification
Notice-GE
© 2013 ROHM Co., Ltd. All rights reserved.
Rev.004
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
© 2013 ROHM Co., Ltd. All rights reserved.
Rev.004
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
© 2015 ROHM Co., Ltd. All rights reserved.
Rev.001