ROHM BU34TD3WG Technical data

A

CMOS LDO Regulators for Portable Devices

1ch 200mA
CMOS LDO Regulators

BUTD3WG Series

●Description

BUTD3WG series is high-performance FULL CMOS regulator with 200-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 35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 Vout<2.5V products）

2) High ripple rejection: 70 dB (Typ., 1 kHz,)

3) Compatible with small ceramic capacitor (CIN=Co=0.47 F)

4) Low current consumption: 35 A

5) ON/OFF control of output voltage

6) With built-in over current protection circuit and thermal shutdown circuit

7) With built-in output discharge circuit

●Applications

Battery-powered portable equipment, etc.

●Line up matrix

■200 mA BU□□TD3WG Series

Product Name 10 12 15 18 1J 19 20 21 25 26

○ ○ ○ ○ ○ ○ ○ ○ ○ ○

No.11020EAT11

Package

BU□□TD3WG

○ ○ ○ ○ ○ ○ ○ ○ ○ -

Model name: BU□□

a

Symbol

a

TD3WG

□□

10 1.0 V(Typ.) 19 1.9 V(Typ.) 27 2.7 V(Typ.) 31 3.1 V(Typ.)

12 1.2 V(Typ.) 20 2.0 V(Typ.) 28 2.8 V(Typ.) 32 3.2 V(Typ.)

15 1.5 V(Typ.) 21 2.1 V(Typ.) 2J 2.85 V(Typ.) 33 3.3 V(Typ.)

18 1.8 V(Typ.) 25 2.5 V(Typ.) 29 2.9 V(Typ.) 34 3.4 V(Typ.)

1J 1.85 V(Typ.) 26 2.6 V(Typ.) 30 3.0 V(Typ.) - -

Output

voltage (V)

□□

Contents

Specification of output voltage

Output

voltage (V)

□□

Output

voltage (V)

□□

SSOP5 27 28 2J 29 30 31 32 33 34 -

Output

voltage (V)

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2012.02 - Rev.

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BU□□TD3WG Series

Absolute maximum ratings

Parameter Symbol Ratings Unit

Maximum applied power voltage VMAX -0.3 ~ +6.5 V

Power dissipation Pd 540*1 mW

Maximum junction temperature TjMAX +125 ℃

Operational temperature range Topr -40 ~ +85 ℃

Storage temperature range Tstg -55 ~ +125 ℃

(*1) When PCB (70 mm  70 mm, thickness 1.6-mm glass epoxy) a standard ROHM board is implemented.
Reduced to 5.6 mW/℃when used at Ta=25℃or higher.

Recommended operating range (Do not exceed Pd.)

Parameter Symbol Ratings Unit

Input power supply voltage VIN 1.7 ~ 5.5 V

Maximum output current IMAX 200 mA

Technical Note

Recommended operating conditions

Parameter Symbol

Input capacitor CIN 0.22

Output capacitor CO 0.22

(*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.

Ratings

Min. Typ. Max.

(*2)

0.47 － μF

(*2)

0.47 － μF

Unit Conditions

A ceramic capacitor is
recommended.

A ceramic capacitor is
recommended.

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2012.02 - Rev.

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BU□□TD3WG Series

Technical Note

Electrical characteristics (Ta=25℃, VIN=VOUT+1.0V

Parameter Symbol

(*3)

, STBY=VIN, Cin=0.47μF, Co=0.47μF, unless otherwise noted.)

Limits

Min. Typ. Max.

Unit Conditions

Overall Device

Output Voltage VOUT

VOUT

×0.99

VOUT

-25mV

VOUT

VOUT

×1.01

VOUT

+25m

V

IOUT=10μA, VOUT≧2.5V

V

IOUT=10μA, VOUT＜2.5V

Operating Current IIN - 35 60 μA IOUT=0mA

Operating Current (STBY) ISTBY - - 1.0 μA STBY=0V

Ripple Rejection Ratio RR 45 70 - dB

- 280 540 mV

- 260 500 mV

Dropout Voltage VSAT

- 240 460 mV

- 220 420 mV

Line Regulation VDL - 2 20 mV

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)

VIN=VOUT+1.0V to 5.5V
IOUT=10μA

(*4)

,

Load Regulation VDLO - 10 80 mV IOUT=0.01mA to 100mA

Over-current Protection (OCP)

Limit Current ILMAX 220 400 700 mA Vo=VOUT*0.95

Short Current ISHORT 20 70 150 mA Vo=0V

Standby Block

Discharge Resistor RDSC 20 50 80 Ω

VIN=4.0V, STBY=0V,
VOUT=4.0V

STBY Pin Pull-down Current ISTB 0.1 0.6 2.0 μA STBY=1.5V

ON VSTBH 1.2 - 5.5 V

STBY Control Voltage

OFF VSTBL -0.3 - 0.3 V

* This product does not have radiation-proof design.
(*3) VIN=2.5V for VOUT≦1.5V
(*4) VIN=2.5V to 5.5V 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 Parameter Min. Typ. Max. Unit

80 160 -

Conditions

VIN=1.7V

1.0, 1.2V
200 - - VIN=2.1V

Maximum

1.5V

output

current

60 120 - VIN=1.8V

mA

200 - - VIN=2.2V

1.8V, 1.85V, 1.9V, 2.0V, 2.1V 200 - - VIN=VOUT+0.6V

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2012.02 - Rev.

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BU□□TD3WG Series

Block diagram, recommended circuit diagram, and pin configuration diagram

BU□□TD3WG

VIN

Cin

VSTBY

VIN

GND

STBY

1

VREF

2

3

OCP

TSD

STBY

Discharge

VOUT

5

4

VOUT

Co

N.C.

PIN
No.

1 VIN Power input

2 GND Grounding

3 STBY

4 N.C. NO CONNECT

Technical Note

Symbol Function

ON/OFF control of output voltage
(High: ON, Low: OFF)

Recommended ceramic capacitor for Cin & Co
Murata Manufacturing Co., Ltd.
GRM188B11A474KA61D

Fig.1 Recommended circuit diagram

Input / Output terminal equivalent circuit schematic

5pin (VOUT) 2pin (GND) 3pin (STBY) 1pin (VIN)

IN

V

VOUT

Fig.2 Input / Output equivalent circuit

5 VOUT Voltage output

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2012.02 - Rev.

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BU□□TD3WG Series

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.

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.

Technical Note

Capacity value of ceramic capacitor - DC bias characteristics

10

0

-10

-20

-30

-40

-50

-60

-70

Capacitance Change [%]

-80

-90

-100

10-V withstand voltag e
F char acteri sti cs

00.511.52 2.533.54

Fig.3 Capacity – bias characteristics

Cout=0.47μF Cin=0.47μF Temp=+25℃

100

10

1

ESR [Ω]

ESR　[Ω]

0.1

0.01

0 50 100 150 200

Fig.4 Stability area characteristics (Example)

Example

(

)

10-V wit hstand voltag e
B charac teri stic s

10-V wit hstand voltag e
F characteristics

DC Bias Voltage [V]

Unstable region

Stable region

IOUT [mA]

4-V wit hstand volt age
X6S character istic s

10-V withstand voltag e
B1charac teri sti cs
GRM188 B11A105KA61D

6.3-V withstand voltag e
B characteristi cs

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2012.02 - Rev.

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BU□□TD3WG Series

●Reference data BU12TD3WG (Ta=25℃ unless otherwise specified.)

1.4

Temp=25°C

1.2

1.0

0.8

0.6

0.4

Output Voltage (V)

0.2

0.0

00.511.522.533.544.555.5

Io=0uA
Io=1 00uA
Io=50mA
Io=200mA

Input Voltage (V)

VIN= STBY

1.25

Temp=25°C

1.24

1.23

1.22

1.21

1.20

1.19

1.18

Output Voltage (V)

1.17

1.16

1.15

1.1 1.2 1.3 1.4 1.5 1.6 1.7 1.8 1.9 2

Io=0uA
Io=1 00uA
Io=50mA
Io=200mA

Input Voltage (V)

VIN= STBY

100

Io=0uA

80

60

40

Gnd Current (uA)

20

0

00.511.522.533.544.555.5

Fig.5. Output Voltage

Fig.6. Line Regulation

Fig.7. Circuit Current IGND

1.6

1.4

1.2

1.0

0.8

0.6

0.4

STBY Pin Cu rrent (u A)

0.2

0.0

00.511.522.5 33.544.555.5

Temp=85°C

Temp=25°C

Temp=-40°C

Input Voltage (V)

Fig.8. VSTBY - ISTBY

100

VIN= 2.5V

STBY= 1.5V

80

60

40

Gnd Curr ent (uA)

20

0

0 0.05 0.1 0.15 0.2

Temp=85°C

Temp=-40°C

Temp=25°C

Output Current (A)

Fig.9. IOUT - IGND

1.25

VIN= 2.5V

1.24
STBY=1.5V

1.23

1.22

1.21

1.20

1.19

1.18

Output Voltage ( V)

1.17

Temp=-40°C

1.16

1.15

0 0.05 0.1 0.15 0.2

Output Current (A)

Fig.10. Load Regulation

1.4
Temp=25°C

1.2

1.0

VIN=1.7V

0.8

0.6

0.4

Output Voltage (V)

0.2

0.0

0 0.1 0.2 0.3 0.4 0.5 0.6

Output Current (A)

VIN=5.5V

VIN=2.5V

STBY= 1.5V

1.5

VIN= 2.5V

Io=0mA

1.0

Temp=25°C

0.5

Output Voltage (V)

Temp=85°C

0.0

00.511.5

Temp=-40°C

STBY V oltage (V )

1.25

VIN= 2.5V

1.24
STBY=1.5V

1.23

Io=0.1mA

1.22

1.21

1.20

1.19

1.18

Output Voltage (V)

1.17

1.16

1.15

-40 -15 10 35 60 85

Fig.11. OCP Threshold Fig.12. STBY Threshold Fig.13. VOUT - Temp

Technical Note

Temp=85°

Temp=25°C

Temp=-40°C

VIN= STBY

Input Voltage (V )

Temp=25°C

Temp ( °C)

Temp=85°C

60

VIN =2.5V

STBY=1.5V

50

Io=0mA

40

30

20

Gnd Cur rent ( uA)

10

0

-40 - 15 10 35 60 85

Temp ( °C)

Fig.14. IGND vs Temp Fig.15. IGND - Temp (STBY)

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© 2012 ROHM Co., Ltd. All rights reserved.

1.0

0.9

0.8

0.7

0.6

0.5

0.4

0.3

Gnd Curr ent (uA)

0.2

0.1

0.0

-40 -15 10 35 60 85

Temp ( °C)

6/42

VIN= 2.5V
STBY=0V

2012.02 - Rev.

A

BU□□TD3WG Series

p

g

(

)

p

g

(

)

p

(

)

●Reference data BU12TD3WG (Ta=25℃ unless otherwise specified.)

1.25

V
e

1.20

1.15

ut Volta

Out

1.10

IOUT=0mA→50mA

Output Current (mA)

100

50

0

Fig.16. Load Response

IOUT=0mA→100mA

1.25

1.20

1.15

Output Voltage (V)

1.10

Output Current (mA)

100

50

0

Fig.18. Load Response

IOUT=0mA→200mA

1.30

1.20

1.10

Output Voltage (V)

1.00

Output Current (mA)

200

100

0

Technical Note

IOUT=50mA→0mA

1.30

1.25

1.20

Output Voltage (V)

1.15

Fig.17. Load Response

IOUT=100mA→0mA

1.30

1.25

1.20

Output Voltage (V)

1.15

Fig.19. Load Response

IOUT=200mA→0mA

1.40

1.30

1.20

Output Voltage (V)

1.10

Output Current (mA)

100

50

0

Output Current (mA)

100

50

0

Output Current (mA)

200

100

0

Fig.20. Load Response

IOUT=50mA→100mA

1.25

1.20

1.15

Output Voltage (V)

1.10

Output Current (mA)

100

50

0

1.25

V
e

1.20

1.15

ut Volta

Out

1.10

Fig.22. Load Response

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7/42

Fig.21. Load Response

IOUT=100mA→50mA

Fig.23. Load Response

2012.02 - Rev.

Out

ut Current

100

50

mA

0

A

BU□□TD3WG Series

●Reference data BU12TD3WG (Ta=25℃ unless otherwise specified.)

STBY=0→1.5V

2.0

1.0

0.0

Output Voltage (V)

STBY Voltage (V)

2.0

1.0

0.0

Fig.24. Start Up Time

Iout=0mA

VIN=STBY=0→2.5V

2.0

1.0

0.0

Output Voltage (V)

STBY Voltage (V)

4.0

2.0

0.0

Fig.26. Start Up Time

(VIN=STBY) Iout=0mA

Iout=0mA

STBY=1.5→0V

2.0

1.0

0.0

Output Voltage (V)

STBY Voltage (V)

2.0

1.0

0.0

Technical Note

STBY=0→1.5V

2.0

1.0

0.0

Output Voltage (V)

Fig.25. Start Up Time

Iout=200mA

VIN=STBY=0→2.5V

2.0

1.0

0.0

Output Voltage (V)

Fig.27. Start Up Time

(VIN=STBY) Iout=200mA

VIN=2.5V→3.5V→2.5V

1.21

1.20

1.19

Output Voltage (V)

1.18

STBY Voltage (V)

2.0

1.0

0.0

STBY Voltage (V)

4.0

2.0

0.0

Input Voltage (V)

4.5

3.5

2.5

Fig.28. Discharge Time

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8/42

Fig.29. VIN Response

2012.02 - Rev.

A

BU□□TD3WG Series

●Reference data BU15TD3WG (Ta=25℃ unless otherwise specified.)

2.0

Temp=25°C

1.8

1.6

1.4

1.2

1.0

0.8

0.6

Output Voltage (V)

0.4

0.2

0.0

00.511.522.533.544.555.5

Io=0uA
Io=100uA
Io=50mA
Io=200mA

Input Voltage (V)

1.55

Temp=25°C

1.54

1.53

1.52

1.51

1.50

1.49

1.48

Output Voltage (V)

1.47

1.46

1.45

1.41.51.61.71.81.9 2 2.1

Io=0uA
Io=1 00uA
Io=50mA
Io=200mA

Input Voltage (V )

Fig.30. Output Voltage

Fig.31. Line Regulation

1.6

1.4

1.2

1.0

0.8

0.6

0.4

STBY Pin Curr ent (uA)

0.2

0.0

00.511.522.5 33.544.555.5

Fig.33. VSTBY - ISTBY

Temp=25°C

Temp=85°C

Temp=-40°C

Input Voltage (V)

100

VIN= 2.5V

STBY= 1.5V

80

60

40

Gnd Curr ent (uA)

20

0

0 0.05 0.1 0.15 0.2

Temp=85°C

Temp=-40°C

Temp=25°C

Output Current (A )

Fig.34. IOUT - IGND

2.0

Temp=25°C

1.8

1.6

1.4

VIN=2.0V

1.2

1.0

0.8

0.6

Output Voltage (V)

0.4

0.2

0.0

0 0.1 0.2 0.3 0.4 0.5 0.6

Output Current (A )

VIN=2.5V

VIN=5.5V

STBY=1.5V

2.0

VIN= 3.8V

Io=0mA

1.5

1.0

Temp=25°C

Temp=85°C

0.5

Output Voltage (V)

0.0

00.511.5

STBY V oltage (V)

VIN= STBY

Temp=-40°C

Technical Note

100

IO=0uA VIN=ST BY

80

60

40

Gnd Curr ent (uA)

20

0

00.511.522.533.544.555.5

Fig.32. Circuit Current IGND

1.55

1.54

1.53

1.52

1.51

1.50

1.49

1.48

Output Voltage (V)

1.47

1.46

1.45

0 0.05 0.1 0.15 0.2

Fig.35. Load Regulation

1.55

1.54

1.53

1.52

1.51

1.50

1.49

1.48

Output Voltage (V)

1.47

1.46

1.45

-40 -15 10 35 60 85

VIN= 2.5V

STBY=1.5V

Temp=-40°C

VIN= 2.5V

STBY=1.5V

Io=0.1mA

Input Voltage (V)

Temp=25°C

Temp=85°C

Output Current (A)

Temp ( °C)

Temp=85°C

Temp=25°C

Temp=-40°C

Fig.36. OCP Threshold

60

VIN= 2.5V

STBY=1.5V

50

Io=0mA

40

30

20

Gnd Current (uA)

10

0

-40 -15 10 35 60 85

Temp ( °C)

Fig.39. IGND vs Temp Fig.40. IGND vs Temp (STBY)

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Fig.37. STBY Threshold Fig.38. VOUT - Temp

1.0

0.9

0.8

0.7

0.6

0.5

0.4

0.3

Gnd Curr ent (uA)

0.2

0.1

0.0

-40 -15 10 35 60 85

Temp ( °C)

9/42

VIN= 2.5V
STBY=0V

2012.02 - Rev.

A

BU□□TD3WG Series

p

g

(

)

p

g

(

)

p

g

(

)

p

g

(

)

p

g

(

)

p

g

(

)

p

g

(

)

p

g

(

)

●Reference data BU15TD3WG (Ta=25℃ unless otherwise specified.)

1.55

V
e

1.50

1.45

ut Volta

Out

1.40

IOUT=0mA→50mA

Output Current (mA)

100

50

0

Fig.41. Load Response

IOUT=0mA→100mA

1.55

V
e

1.50

1.45

ut Volta

Out

1.40

Output Current (mA)

100

50

0

Fig.43. Load Response

IOUT=0mA→200mA

1.60

V
e

1.50

1.40

ut Volta

Out

1.30

Output Current (mA)

200

100

0

Technical Note

Output Current (mA)

IOUT=50mA→0mA

1.60

1.30

V
e

1.55

1.25

1.50

1.20

ut Volta

Out

Output Voltage (V)

1.45

1.15

Fig.42. Load Response

IOUT=100mA→0mA

1.30

1.60

V

1.25

e

1.55

1.20

1.50

ut Volta

Output Voltage (V)

1.15

Out

1.45

Fig.44. Load Response

IOUT=200mA→0mA

1.40

1.70

V

1.30

e

1.60

1.20

1.50

ut Volta

Output Voltage (V)

Out

1.10

1.40

Output Current (mA)

100

100

50

50

0

0

Output Current (mA)

Output Current (mA)

100

100

50

50

0

0

Output Current (mA)

Output Current (mA)

200

200

100

100

0

0

Fig.45. Load Response

IOUT=50mA→100mA

1.55

V
e

1.50

1.45

ut Volta

Out

1.40

Output Current (mA)

100

50

0

1.60

V
e

1.55

1.50

ut Volta

Out

1.45

Fig.47. Load Response

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10/42

Fig.46. Load Response

IOUT=100mA→50mA

Fig.48. Load Response

2012.02 - Rev.

Output Current (mA)

100

50

0

A

BU□□TD3WG Series

●Reference data BU15TD3WG (Ta=25℃ unless otherwise specified.)

STBY=0→1.5V

2.0

1.0

0.0

Output Voltage (V)

STBY Voltage (V)

2.0

1.0

0.0

Fig.49. Start Up Time

Iout=0mA

VIN=STBY=0→2.5V

2.0

1.0

0.0

Output Voltage (V)

STBY Voltage (V)

4.0

2.0

0.0

Fig.51. Start Up Time

(VIN=STBY) Iout=0mA

Iout=0mA

STBY=1.5→0V

2.0

1.0

0.0

Output Voltage (V)

STBY Voltage (V)

2.0

1.0

0.0

Technical Note

STBY=0→1.5V

2.0

1.0

0.0

Output Voltage (V)

Fig.50. Start Up Time

Iout=200mA

VIN=STBY=0→2.5V

2.0

1.0

0.0

Output Voltage (V)

Fig.52. Start Up Time

(VIN=STBY) Iout=200mA

VIN=2.5V→3.5V→2.5V

1.51

1.50

1.49

Output Voltage (V)

1.48

STBY Voltage (V)

2.0

1.0

0.0

STBY Voltage (V)

4.0

2.0

0.0

Input Voltage (V)

4.5

3.5

2.5

Fig.53. Discharge Time

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11/42

Fig.54. VIN Response

2012.02 - Rev.

A

BU□□TD3WG Series

●Reference data BU18TD3WG (Ta=25℃ unless otherwise specified.)

2.0

Temp=25°C

1.8

1.6

1.4

1.2

1.0

0.8

0.6

Output Voltage (V)

0.4

0.2

0.0

00.511.522.533.544.555.5

Io=0uA
Io=100uA
Io=50mA
Io=200mA

Input Voltage (V)

VIN= STBY

1.85

Temp=25°C

1.84

1.83

1.82

1.81

1.80

1.79

1.78

Output Voltage (V)

1.77

1.76

1.75

1.7 1.8 1.9 2 2.1 2.2 2.3 2.4 2.5

Io=0uA
Io=1 00uA
Io=50mA
Io=200mA

Input Voltage (V)

Fig.55. Output Voltage

Fig.56. Line Regulation

1.6

1.4

1.2

1.0

0.8

0.6

0.4

STBY Pin Curr ent (uA)

0.2

0.0

00.511.522.5 33.544.555.5

Fig.58. VSTBY - ISTBY

Temp=25°C

Temp=85°C

Temp=-40°C

Input Voltage (V)

100

VIN= 2.8V

STBY=1.5V

80

60

40

Gnd Current (uA)

20

0

0 0.05 0.1 0.15 0.2

Temp=85°C

Temp=-40°C

Temp=25°C

Output Current (A)

Fig.59. IOUT - IGND

2.0

1.8

1.6

1.4

1.2

1.0

0.8

0.6

Output Voltage (V)

0.4

0.2

0.0

VIN=5.5V

0.00.10.20.30.40.50.6

VIN=2.3V

Output Current (mA )

VIN=2.8V

Temp=25°C

STBY=1.5V

2.0

VIN= 3.8V

Io=0mA

1.5

1.0

Temp=25°C

Temp=85°C

0.5

Output Voltage (V)

0.0

0 0.5 1 1.5

STBY Voltage (V )

Fig.61. OCP Threshold Fig.62. STBY Threshold Fig.63. VOUT - Temp

VIN=ST BY

Temp=-40°C

Technical Note

100

Io=0uA

80

60

40

Gnd Current (uA)

20

0

00.511.522.533.544.555.5

Fig.57. Circuit Current IGND

1.85

1.84

1.83

1.82

1.81

1.80

1.79

1.78

Output Voltage (V)

1.77

1.76

1.75

0 0.05 0.1 0.15 0.2

Fig.60. Load Regulation

1.85

1.84

1.83

1.82

1.81

1.80

1.79

1.78

Output Voltage (V)

1.77

1.76

1.75

-40 -15 10 35 60 85

Temp=-40°C

Input Voltage (V)

Temp=25°C

Temp=85°C

Output Current (A)

Temp ( °C)

VIN= STBY

Temp=85°C

Temp=25°C

Temp=-40°C

VIN= 2.8V

STBY=1.5V

VIN= 2.8V

STBY=1.5V

Io=0.1mA

60

VIN= 2.8V

STBY=1.5V

50

Io=0mA

40

30

20

Gnd Current (uA)

10

0

-40 -15 10 35 60 85

Temp ( °C)

Fig.64. IGND - Temp Fig.65. IGND - Temp (STBY)

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© 2012 ROHM Co., Ltd. All rights reserved.

1.0

0.9

0.8

0.7

0.6

0.5

0.4

0.3

Gnd Current (uA)

0.2

0.1

0.0

-40 -15 10 35 60 85

Temp ( °C)

12/42

VIN= 2.8V

STBY=0V

2012.02 - Rev.

A

BU□□TD3WG Series

p

g

(

)

p

g

(

)

p

g

(

)

p

g

(

)

p

g

(

)

p

g

(

)

p

g

(

)

p

g

(

)

●Reference data BU18TD3WG (Ta=25℃ unless otherwise specified.)

IOUT=0mA→50mA

1.85

V
e

1.80

1.75

ut Volta

Out

1.70

Output Current (mA)

100

50

0

Fig.66. Load Response

IOUT=0mA→100mA

1.85

V
e

1.80

1.75

ut Volta

Out

1.70

Output Current (mA)

100

50

0

Fig.68. Load Response

IOUT=0mA→200mA

1.90

V
e

1.80

1.70

ut Volta

Out

1.60

Output Current (mA)

200

100

0

Fig.70. Load Response

Technical Note

IOUT=50mA→0mA

1.90

V
e

1.85

1.80

ut Volta

Out

1.75

Fig.67. Load Response

IOUT=100mA→0mA

1.90

V
e

1.85

1.80

ut Volta

Out

1.75

Fig.69. Load Response

IOUT=200mA→0mA

2.00

V
e

1.90

1.80

ut Volta

Out

1.70

Fig.71. Load Response

Output Current (mA)

100

50

0

Output Current (mA)

100

50

0

Output Current (mA)

200

100

0

IOUT=50mA→100mA

1.90

V
e

1.80

1.70

ut Volta

Out

1.60

Output Current (mA)

100

50

0

Fig.72. Load Response

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13/42

IOUT=100mA→50mA

1.85

V
e

1.80

1.75

ut Volta

Out

1.70

Output Current (mA)

100

50

0

Fig.73. Load Response

2012.02 - Rev.