Datasheet
CMOS LDO Regulator Series for Portable Equipments
Versatile Package
FULL CMOS LDO Regulator
BUxxTD2WNVX series
●General
Description
BUxxTD2WNVX series is high-performance FULL CMOS
regulator with 200-mA output, which is mounted on
versatile package SSON004X1010 (1.00mm
×
1.00 mm
×
0.60mm). It has excellent noise characteristics and
load responsiveness characteristics despite its low circuit
current consumption of 35μA. 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 3.4V
±1.0% (±25mV)
35μA
-40°C to +85°C
●Applications
Battery-powered portable equipment, etc.
●Package
SSON004X1010 :
●Features
High accuracy detection
low current consumption
Compatible with small ceramic capacitor(Cin=Co=0.47uF)
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
Low dropout voltage
1.00mm x 1.00mm x 0.60mm
●Typical
Application Circuit
STBY
VIN
STBY
VIN
VOUT
VOUT
GND
GND
GND
Fig.1 Application Circuit
○Product
structure:Silicon monolithic integrated circuit
○This
product is not designed protection against radioactive rays.
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BUxxTD2WNVX series
●Connection
Diagram
SSON004X1010 (TOP VIEW)
4 VIN
3 STBY
LOT Number
Datasheet
1
1 VOUT
2
Part Number Marking
2 GND
1PIN MARK
●Pin
Descriptions
PIN No.
1
2
3
4
SSON004X1010
Symbol
Function
VOUT
Output Voltage
GND
Grouding
ON/OFF control of output voltage
STBY
(High: ON, Low: OFF)
VIN
Power Supply Voltage
●Ordering
Information
B
Part
Number
U
x
x
T
D
2
W
N
V
X
-
½
Halogen Free
G : compatible
Blank : incompatible
T
L
Output Voltage
10 : 1.0V
34 : 3.4V
Low Dropout Voltage
Maximum Output Current
200mA
with
Package
output discharge NVX : SSON004X1010
Packageing and forming specification
Embossed tape and reel
TL : The pin number 1 is the lower left
SSON004X1010
1.0±0.1
1.0±0.1
<Tape and Reel information>
Tape
Quantity
S
+0.03
0.02
−0.02
(0.12)
1PIN MARK
Embossed carrier tape
5000pcs
TL
The direction is the 1pin of product is at the lower left when you hold
0.6MAX
Direction
of feed
0.05
(
reel on the left hand and you pull out the tape on the left hand
)
0.32±0.1
±
48
0.
05
0.
0.65±0.05 3-C0.18
R0.05
1
2
45º
0.07±0.1
0.25±0.1
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TSZ22111½15½001
±
48
0.
0.
4
3
0.25±0.05
1pin
Direction of feed
05
(Unit : mm)
Reel
∗
Order quantity needs to be multiple of the minimum quantity.
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BUxxTD2WNVX series
●Lineup
Marking
Output Voltage
Part Number
Datasheet
A
1.0V
BU10
G
2.0V
BU20
M
2.85V
BU2J
6
1.05V
BU1A
r
2.05V
BU2A
N
2.9V
BU29
2
1.15V
BU1B
0
2.1V
BU21
P
3.0V
BU30
B
1.2V
BU12
1
2.3V
BU23
Q
3.1V
BU31
3
1.25V
BU1C
H
2.5V
BU25
R
3.2V
BU32
C
1.5V
BU15
J
2.6V
BU26
U
3.3V
BU33
D
1.8V
BU18
K
2.7V
BU27
Y
3.4V
BU34
E
1.85V
BU1J
a
2.75V
BU2H
F
1.9V
BU19
L
2.8V
BU28
●Absolute
Maximum Ratings (Ta=25°C)
PARAMETER
Symbol
VMAX
Pd
TjMAX
Topr
Tstg
Limit
-0.3
½
+6.5
560(*1)
+125
-40
½
+85
-55
½
+125
Unit
V
mW
℃
℃
℃
Power Supply Voltage
Power Dissipation
Maximum junction temperature
Operating Temperature Range
Storage Temperature Range
(*1)Pd deleted at 5.6mW/℃ 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
Maximum Output Current
Symbol
VIN
IMAX
Limit
1.7~6.0
200
Unit
V
mA
●OPERATING
CONDITIONS
PARAMETER
Input Capacitor
Output Capacitor
Symbol
Cin
Co
MIN.
0.22(*2)
0.22(*2)
TYP.
0.47
0.47
MAX.
-
-
Unit
μF
μF
CONDITION
Ceramic capacitor recommended
(*2)Make sure that the output capacitor value is not kept lower than this specified level across a variety of
temperature, DC bias, changing as time progresses characteristic.
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BUxxTD2WNVX series
●Electrical
Characteristics
(Ta=25℃, VIN=VOUT+1.0V (*3), STBY=VIN, Cin=0.47μF, Co=0.47μF, unless otherwise noted.)
Limit
MIN.
TYP.
MAX.
Datasheet
PARAMETER
Symbol
Unit
Conditions
Overall Device
Output Voltage
Operating Current
Operating Current (STBY)
Ripple Rejection Ratio
VOUT
IIN
ISTBY
RR
VOUT×0.99
VOUT-25mV
VOUT
35
-
70
280
260
240
220
2
10
VOUT×1.01
VOUT+25mV
V
μA
μA
dB
mV
mV
mV
mV
mV
mV
IOUT=10μA, VOUT≧2.5V
IOUT=10μA, VOUT＜2.5V
IOUT=0mA
STBY=0V
VRR=-20dBv, fRR=1kHz, IOUT=10mA
2.5V≦VOUT≦2.6V (VIN=0.98*VOUT, IOUT=200mA)
2.7V≦VOUT≦2.85V (VIN=0.98*VOUT, IOUT=200mA)
2.9V≦VOUT≦3.1V (VIN=0.98*VOUT, IOUT=200mA)
3.2V≦VOUT≦3.4V (VIN=0.98*VOUT, IOUT=200mA)
-
-
45
-
-
60
1.0
-
540
500
460
420
20
80
Dropout Voltage
VSAT
-
-
Line Regulation
Load Regulation
VDL
VDLO
-
-
VIN=VOUT+1.0V to 5.5V (*4), IOUT=10μA
IOUT=0.01mA to 100mA
Over Current Protection (OCP)
Limit Current
Short Current
ILMAX
ISHORT
220
20
400
70
700
150
mA
mA
Vo=VOUT*0.95
Vo=0V
Standby Block
Discharge Resistor
STBY Pin Pull-down Current
STBY Control Voltage
ON
OFF
RDSC
ISTB
VSTBH
VSTBL
20
0.1
1.2
-0.3
50
0.6
-
-
80
2.0
5.5
0.3
Ω
μA
V
V
VIN=4.0V, STBY=0V, VOUT=4.0V
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
●ELECTRICAL CHARACTERISTICS of each Output Voltage
(Ta=25℃, STBY=VIN, Cin=0.47μF, Co=0.47μF, unless otherwise noted.)
Output Voltage
1.0V,1.15V,1.2V,1.25V
1.5V
1.8V,1.85V,1.9V,2.0V,2.05V,2.1V,2.3V
●Block
Diagrams
VIN
VIN
PARAMETER
Maximum
output current
MIN.
80
200
60
200
200
TYP.
160
-
120
-
-
MAX.
-
-
-
-
-
Unit
mA
Conditions
VIN=1.7V
VIN=2.1V
VIN=1.8V
VIN=2.2V
VIN=VOUT+0.6V
4
VREF
Cin
1
VOUT
GND
2
VOUT
OCP
TSD
Co
STBY
STBY
3
STBY
Discharge
Cin½½½0.47μF (Ceramic)
Co
½½½0.47μF
(Ceramic)
Fig. 2 Block Diagrams
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TSZ02201-0RBR0A300050-1-2
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BUxxTD2WNVX series
●Reference
data
Datasheet
(Ta=25ºC unless otherwise specified.)
BU18TD2WNVX
2.0
1.8
1.85
100
Temp=25°C
1.84
Temp=25°C
VIN=STBY
Io=0uA
VIN=STBY
Output Voltage (V)
Output Voltage (V)
1.4
1.2
1.0
0.8
0.6
0.4
0.2
0.0
0
0.5
1
1.5
2
2.5
3
3.5
4
4.5
5
5.5
1.82
1.81
1.80
1.79
1.78
1.77
1.76
1.75
1.7
1.8
1.9
2
2.1
2.2
2.3
2.4
2.5
Gnd Current (uA)
1.6
1.83
80
Temp=85°C
60
Io=0uA
Io=100uA
Io=50mA
Io=200mA
VIN=STBY
Temp=25°C
40
Io=0uA
Io=100uA
Io=50mA
Io=200mA
20
Temp=-40°C
0
0
0.5
1
1.5
2
2.5
3
3.5
4
4.5
5
5.5
Input Voltage (V)
Input Voltage (V)
Input Voltage (V)
Fig 3. Output Voltage
Fig 4. Line Regulation
Fig 5. Circuit Current IGND
1.6
100
1.85
STBY Pin Current (uA)
1.4
1.2
1.0
0.8
0.6
0.4
0.2
0.0
0
0.5
1
1.5
2
2.5
3
3.5
4
4.5
5
5.5
0
0
Output Voltage (V)
Gnd Current (uA)
80
VIN=2.8V
STBY=1.5V
1.84
Temp=85°C
VIN=2.8V
STBY=1.5V
Temp=25°C
Temp=85°C
1.83
1.82
1.81
1.80
1.79
1.78
1.77
1.76
1.75
Temp=85°C
60
40
Temp=-40°C
20
Temp=25°C
Temp=-40°C
Temp=25°C
Temp=-40°C
0.05
0.1
0.15
0.2
0
0.05
0.1
0.15
0.2
Input Voltage (V)
Output Current (A)
Output Current (A)
Fig 6. VSTBY - ISTBY
Fig 7. IOUT - IGND
Fig 8. Load Regulation
1.85
2.0
1.8
VIN=2.8V
2.0
1.84
Output Voltage (V)
Output Voltage (V)
1.6
1.4
1.2
1.0
0.8
0.6
0.4
0.2
0.0
0.0
0.1
0.2
0.3
0.4
0.5
0.6
VIN=5.5V
VIN=2.3V
1.5
Output Voltage (V)
VIN=3.8V
Io=0mA
1.83
1.82
1.81
1.80
1.79
1.78
1.77
1.76
VIN=2.8V
STBY=1.5V
Io=0.1mA
1.0
Temp=25°C
0.5
Temp=25°C
STBY=1.5V
Temp=85°C
Temp=-40°C
0.0
0
0.5
1
1.5
1.75
-40
-15
10
35
60
85
Output Current (mA)
STBY Voltage (V)
Temp (°C)
Fig 9. OCP Threshold
Fig 10. STBY Threshold
Fig 11. VOUT - Temp
60
1.0
50
Gnd Current (uA)
Gnd Current (uA)
VIN=2.8V
STBY=1.5V
Io=0mA
0.9
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
VIN=2.8V
STBY=0V
40
30
20
10
0
-40
-15
10
35
60
85
0.0
-40
-15
10
35
60
85
Temp (°C)
Temp (°C)
Fig 12. IGND - Temp
Fig 13. IGND - Temp (STBY)
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TSZ02201-0RBR0A300050-1-2
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