S78D90Q [KODENSHI]

Low Dropout Voltage Regulator;


型号：	S78D90Q
厂家：	KODENSHI KOREA CORP.
描述：	Low Dropout Voltage Regulator
文件：	总11页 (文件大小：414K)
中文：	中文翻译
下载：	下载PDF数据表文档文件

S78Dxxx

Low Dropout Voltage Regulator (1.0A Series)

Semiconductor

http:// www.auk.co.kr

Description

The S78Dxxx is an efficient linear low dropout voltage regulator for

various electronic equipment. It is designed to provide very low dropout

voltage, and better than 2.4% output voltage accuracy.

And the S78Dxxx has various key features such as current limiting,

over temperature shut-down, over voltage protection, and low noise

performance with an low noise option.

SOT-223

Furthermore, it is available in adjustable or fixed output voltages in

SOT-223, TO-252-3L and TO-220F-3L packages.

TO-252-3L

Application

◈Consumer and personal electronics

◈SMPS post-regulator / dc-to-dc modules

◈High-efficiency linear power supplies

TO-220F-3L

ORDERING INFORMATION

Product

S78DxxQ

S78DxxD

S78DxxPI

Marking

S78Dxx

Package

Features and Benefits

SOT-223

◈Low Dropout Voltage for 1.0A Output : [ Max. 500mV].

◈Built in Thermal shut down circuit.

◈Built in OVP, CLP circuit.

TO-252-3L

TO-220F-3L

◈Low Quiescent Current : [Typ. 2.0mA]

◈Ultra High level of ESD [ Built in ESD Protection Cell ]

MM : 400V↑ / HBM 3KV↑

▲ Marking Detail Information

[ SOT-223 & TO-252-3L PKG Marking ]

Equivalent Circuit

S78Dxxx (ꢀ)

GYWW(ꢁ)

V_IN

V_OUT

ꢀ Device Code

ꢁ Grade & Year & Week Code

[ TO-220F-3L PKG Marking ]

Bias

AUK(ꢀ)

G△YMD (ꢁ)

S78Dxxx (ꢂ)

V_REF

TSD, OVP, CLP

ꢀAUK Logo

GND

ꢁ Grade & M Code & Y/M/D Code

ꢂ Device Code

KSD-I0T012-001

June, 2015 REV. 01

S78Dxxx

◈ Pin Configuration

TO-252-3L

1: V_IN

TO-220F-3L

1: V_IN

SOT-223

1: V_IN

2: GND

3: V_OUT

4: GND

2: GND

3: V_OUT

4: GND

3: V_OUT

◈ Product Line-up

Operating Junction

Product Name

V_OUT

Package

Temperature

S78D15Q

S78D18Q

S78D25Q

S78D33Q

S78D50Q

S78D90Q

S78D120Q

S78D15D

S78D18D

S78D25D

S78D33D

S78D50D

S78D90D

S78D120D

S78D15PI

S78D18PI

S78D25PI

S78D33PI

S78D50PI

S78D90PI

S78D120PI

1.5V

1.8V

2.5V

3.3V

5.0V

9.0V

12.0V

1.5V

1.8V

2.5V

3.3V

5.0V

9.0V

12.0V

1.5V

1.8V

2.5V

3.3V

5.0V

9.0V

12.0V

-30~125℃

SOT-223

TO-252-3L

TO-220F-3L

-30~125℃

KSD-I0T012-001

June, 2015 REV. 01

S78Dxxx

◈ Absolute Maximum Ratings ( Ta = 25℃ )

Parameter

Symbol

Limits

Unit

Input Voltage

V_IN

25.0

SOT-223

1.4(Note1)

1.0(Note2)

1.4(Note2)

TO-252-3L

2.7(Note1)

2.0(Note2)

Power Dissipation

P_d

TO-220F-3L

24(Note3)

Junction Temperature

Operating Junction Temperature Range

Storage Temperature Range

T_J

150

℃

T_opr

T_stg

-30 ~ +125

-55 ~ +150

Note 1 : Mount on a glass epoxy PCB board (25.4 x 25.4mm)

Note 2 : T_A=25℃ (No Heat-Sink)

Note 3 : T_C=25℃ (Used Heat-Sink)

Absolute maximum ratings indicate limits beyond which damage to the component may occur. Electrical

specifications do not apply when operating the device outside of its operating ratings. The maximum

allowable power dissipation is a function of the maximum junction temperature, T_J(max)

the junction-to-ambient thermal resistance, θ_JA, and the ambient temperature, TA.

The maximum allowable power dissipation at any ambient temperature is calculated using:

PD(max) = (T_J(max)– T_A) ÷ θ_JA. Exceeding the maximum allowable power dissipation will result in

excessive die temperature, and the regulator will go into thermal shutdown.

◈ Guaranteed Operating Conditions ( Ta = 25℃ )

Parameter

Symbol

Limits

Unit

Supply Input Voltage

Output Current

V_IN

Vo+0.5~20

1.0

I_OUT

KSD-I0T012-001

June, 2015 REV. 01

S78Dxxx

◈ Electrical characteristics

( V_IN=V_OUT+1.0V, C_IN= 0.33uF, C_OUT= 47 uF, I_OUT= 0.5A, T_J=25℃ ; unless noted )

Specification

Characteristics

Symbol

Condition

Unit

MIN.

TYP.

MAX.

S78D15

1.47

1.50

1.53

S78D18

S78D25

S78D33

S78D50

S78D90

S78D120

1.764

2.450

3.234

4.90

1.80

2.50

3.30

5.0

1.836

2.550

3.366

5.10

Output Voltage

V_OUT

Variation from nominal V_OUT

8.82

9.0

9.18

11.76

12.0

12.24

V_IN=V_OUT+1V to 10V,

I_OUT=0.5A

Line Regulation

Load Regulation

V_LINE

0.05

0.1

0.5

1.0

V_IN=V_OUT+1V,

I_OUT=5mA to 1A

V_LOAD

V_IN=V_OUT+1V to 20V,

I_OUT=0mA

Quiescent Current

Ripple Rejection

I_QC

55.0

2.0

65.0

100

5.0

R·R

I_OUT=50mA, f=120Hz

VIN=VOUT+1V, IOUT=50mA,

10Hz ≤ f ≤ 100kHz

Output Noise Voltage

V_NO

uVrms

Dropout Voltage

Current Limit

V_DROP

I_LIMIT

I_OUT=1.0A

0.5

V_IN=V_OUT+1V

1100

1300

Typical Application

S78Dxxx

V_IN

V_OUT

R_L

C_IN

C_O

–

1) C_INshould be required if regulators are located far from power supply filter

2) C_Oimproves output stability and transient response ( C_O≥ 47uF )

KSD-I0T012-001

June, 2015 REV. 01

S78Dxxx

Fig1. I_QC– T_J

Fig2. V_OUT– T_J

V_OUT= 2.5V

2.80

2.60

2.55

2.40

2.20

2.00

1.80

1.60

1.40

2.50

2.45

2.40

2.35

2.30

2.25

150

-30

120

150

-30

120

Junction Temperature [℃]

Fig3. V_OUT– V_IN

Fig4. V_OUT– T_J

V_OUT= 2.5V

3.5

3.0

3.5

V_OUT= 2.5V

3.0

2.5

2.0

1.5

1.0

0.5

0.0

2.5

2.0

1.5

1.0

0.5

0.0

100

125

150

175

Junction Temperature [℃]

Input Voltage V_IN[V]

[ Over-Voltage Protection ]

[ Thermal Shut-down Protection ]

KSD-I0T012-001

June, 2015 REV. 01

S78Dxxx

Fig5. V_OUT– I_OUT

Fig6. V_OUT– T_J

2.80

2.60

f = 120Hz / I_O= 50mA

V_OUT= 2.5V

2.40

2.50

2.00

1.80

1.60

1.40

0.3

0.6

0.9

1.2

1.5

2.0

0.1

1.0

100

Output Current I_OUT[A]

Input Ripple Frequency [ KHz ]

[ Current Limit Characteristics ]

Fig7. V_DROP– T_J

V_OUT= 2.5V

700

600

500

400

300

200

100

0.00

I_O= 1.0A

_O= 0.5A

-30

120

150

Junction Temperature [℃]

KSD-I0T012-001

June, 2015 REV. 01

S78Dxxx

Fig.8 Line Transient Response

Fig.9 Line Transient Response

5.5

3.5

4.5

3.5

100

-100

Cin=1.0uF, Cout=47uF

Iout=10mA, T_A=25℃

1.6

2.0

1.6

2.0

0.4

0.8

1.2

0.8

1.2

Time [mS]

Fig.10 Load Transient Response

Fig.11 Load Transient Response

0.1

-0.1

1.0

Cin=1.0uF, Cout=47uF, Vin=Vout+1V

Cin=1.0uF, Cout=47uF, Vin=Vout+3V

Preload=200mA, T_A=25℃

160

200

160

200

120

Time [µS]

KSD-I0T012-001

June, 2015 REV. 01

S78Dxxx

◈ SOT-223 Outline Dimension (Unit : mm)

※ Recom m end PCB solder land

[ Unit: m m ]

KSD-I0T012-001

June, 2015 REV. 01

S78Dxxx

◈TO-252-3L Outline Dimension (Unit : mm)

( = C2)

※ Recom m end PCB solder land

[ Unit: m m ]

7.00

1.50

4.60

KSD-I0T012-001

June, 2015 REV. 01

S78Dxxx

◈ TO-220F-3L Outline Dimension (Unit : mm)

KSD-I0T012-001

June, 2015 REV. 01

S78Dxxx

The AUK Corp. products are intended for the use as components in general electronic

equipment (Office and communication equipment, measuring equipment, home

appliance, etc.).

Please make sure that you consult with us before you use these AUK Corp. products

in equipments which require high quality and / or reliability, and in equipments which

could have major impact to the welfare of human life(atomic energy control, airplane,

spaceship, transportation, combustion control, all types of safety device, etc.). AUK

Corp. cannot accept liability to any damage which may occur in case these AUK Corp.

products were used in the mentioned equipments without prior consultation with AUK

Corp..

Specifications mentioned in this publication are subject to change without notice.

KSD-I0T012-001

June, 2015 REV. 01

S78D90Q [KODENSHI]

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