Datasheet LD2980CM48TR, LD2980CM38TR, LD2980CM33TR, LD2980CM32TR, LD2980ABM48TR Datasheet (SGS Thomson Microelectronics)

LD2980



VOLTAGE REGULATORS WITH INHIBIT

■ ULTRALOWDROPOUTVOLTAGE

(0.12VTYP.AT 50mA LOAD)

■ VERYLOW QUIESCENTCURRENT

(MAX1µA IN OFF MODE;TYP.375µAAT
50mALOAD)

■ OUTPUT CURRENT UP TO50 mA

■ LOGIC-CONTROLLEDELECTRONIC

SHUTDOWN

■ OUTPUT VOLTAGESOF 2.85;3.0;3.2;3.3;

3.8;4.85; 5.0V

■ INTERNALCURRENT AND THERMAL LIMIT

■ AVAILABLEIN± 0.5%TOLLERANCE(AT

o

C, A VERSION)

25

■ SUPPLYVOLTAGEREJECTION:63dB(TYP)

■ ONLY1µF FORSTABILITY

■ TEMPERATURERANGE:-40 TO 125

■ SMALLESTPACKAGESSOT23-5LAND

SOT-89

■ FASTDYNAMICRESPONSETOLINEAND

LOADCHANGES

DESCRIPTION

The LD2980 series are very Low Drop regulators
available in SOT23-5L and SOT-89 packages.
The ultra low drop-voltage and the very low

o

C

SERIES

VERY LOW DROP

SOT23-5L

quiescent current make them particularly suitable
for low noise, low power applications and in
batterypowered systems.

Shutdown Logic Control function is available on
pin n. 3 (TTL compatible). This means that when
the device is used as local regulator, it is possible
to put a part of the board in standby,decreasing
the total power consumption.

SOT-89

SCHEMATIC DIAGRAM

April 2000

1/11

LD2980

ABSOLUTE MAXIMUM RATING

Symbol Parameter Value Unit

V

DC InputVoltage 16 V

IN

V

THERMALDATA

Symbol Parameter SOT-89 SOT23-5L Unit

R

thj-cas e

INHBITInput Voltage 16 V

INH

OutputCurrent Internally limited mA

I

o

P

PowerDissipation Internally limited mW

tot

StorageTemperature Range - 55 to 150

T

stg

OperatingJunctionTemperatureRange - 40 to 125

T

op

Thermal ResistanceJunction-case 15 81

o

o

C

o

C

C/W

CONNECTION DIAGRAM

(*) Inhibitpin is not internally pulled-up then it must not be left floating.Disable the device when connected to GND or to a positivevoltage
less than 0.18V

(topview)

SOT23-5L

SOT-89

ORDERING NUMBERS

AB VERSION C VERSION Output Voltage

SOT23-5L SOT-89 SOT23-5L SOT-89

LD2980ABM28TR
LD2980ABM30TR
LD2980ABM32TR
LD2980ABM33TR
LD2980ABM38TR
LD2980ABM48TR
LD2980ABM50TR

LD2980ABU28TR
LD2980ABU30TR
LD2980ABU32TR
LD2980ABU33TR
LD2980ABU38TR
LD2980ABU48TR
LD2980ABU50TR

LD2980CM28TR
LD2980CM30TR
LD2980CM32TR
LD2980CM33TR
LD2980CM38TR
LD2980CM48TR
LD2980CM50TR

LD2980CU28TR
LD2980CU30TR
LD2980CU32TR
LD2980CU33TR
LD2980CU38TR
LD2980CU48TR
LD2980CU50TR

2.85 V

3.0 V

3.2 V

3.3 V

3.8 V

4.85 V

5.0 V

APPLICATION CIRCUIT

2/11

LD2980

ELECTRICALCHARACTERISTICS FOR LD2980AB

V

IN=VO(NOM)

+1, CO=1µF, IO= 1mA, V

= 2V, unlessotherwise specified)

inh

(refer to the test circuits,T

=25oC,

J

Symbol Parameter Test Conditions Min. Typ. Max. Unit

OutputVoltage VIN=3.85 V

V

o

OutputVoltage VIN=4V

V

o

OutputVoltage VIN=4.2 V

V

o

OutputVoltage VIN=4.3 V

V

o

OutputVoltage VIN=4.8 V

V

o

OutputVoltage VIN=5.85 V

V

o

OutputVoltage VIN=6V

V

o

OutputCurrentLimit RL=0 150 mA

I

out

V

∆

LineRegulation V

o

I

QuiescentCurrent ON MODE

d

<50mA

1<I

o

<50 mA, -40< TJ< 125oC

1<I

o

<50mA

1<I

o

<50 mA, -40< TJ< 125oC

1<I

o

<50mA

1<I

o

<50 mA, -40< TJ< 125oC

1<I

o

1<I

<50 mA,

o

<50 mA, -40< TJ< 125oC

1<I

o

<50 mA,

1<I

o

1<I

<50 mA, -40< TJ< 125oC

o

<50 mA,

1<I

o

<50 mA, -40< TJ< 125oC

1<I

o

<50 mA,

1<I

o

<50 mA, -40< TJ< 125oC

1<I

o

+1< VIN<16V, Io=1mA

O(NOM)

-40 < T

I
I
I
I
I
I
I
I

< 125oC

J

=0mA

o

=0 mA -40< TJ<125oC

o

=1mA

o

=1 mA -40< TJ<125oC

o

=10mA

o

=10 mA -40< TJ< 125oC

o

=50mA

o

=50 mA -40< TJ< 125oC

o

2.835

2.828

2.778

2.985

2.977

2.925

3.184

3.175

3.12

3.283

3.275

3.217

3.781

3.771

3.705

4.825

4.813

4.729

4.975

4.962

4.875

2.85 2.865

2.872

2.922

33.015

3.023

3.075

3.2 3. 216

3.225

3.28

3.3 3. 317

3.325

3.383

3.8 3. 819

3.829

3.895

4.85 4.875

4.887

4.971

55.025

5.038

5.125

0.003 0.014

0.032

65

95

125

80

110
170

140

220
460

375

600

1200

%/V

OFF MODE

<0.18 V

V

INH

<0.18 V -40 < TJ< 125oC

V

INH

SVR Supply Voltage Rejection f = 1 KHz, C

DropoutVoltage Io=0mA

V

d

ControlInput LogicLow LOW = OutputOFF -40 < TJ<125oC0.18V

V

il

ControlInput LogicHigh HIGH = Output ON -40< TJ<125oC2 V

V

ih

ControlInput Current V

I

i

=0 mA -40< TJ<125oC

I

o

=1mA

I

o

=1 mA -40< TJ<125oC

I

o

=10mA

I

o

=10 mA -40< TJ< 125oC

I

o

=50mA

I

o

=50 mA -40< TJ< 125oC

I

o

=0V

INH

=5 V, -40< TJ<125oC

V

INH

=10µF63dB

out

eN OutputNoise Voltage(RMS) BW = 300 Hz to 50 KHz, C

=10µF160 µV

out

0

1
7

40

120

0
5

1

3

5
10
15
60
90

150
225

-1

15

V
V
V

V
V
V

V
V
V

V
V
V

V
V
V

V
V
V

V
V
V

µA
µ
µA
µ
µA
µ
µA
µ

µ
µA

mV
mV
mV
mV
mV
mV
mV
mV

µA
µ

in

A

A
A
A

A

A

3/11

LD2980

ELECTRICALCHARACTERISTICS FOR LD2980C

V

IN=VO(NOM)

+1, CO=1µF, IO= 1mA, V

= 2V, unlessotherwise specified)

inh

(refer to the test circuits, T

=25oC,

J

Symbol Parameter Test Conditions Min. Typ. Max. Unit

OutputVoltage VIN=3.85 V

V

o

OutputVoltage VIN=4V

V

o

OutputVoltage VIN=4.2 V

V

o

OutputVoltage VIN=4.3 V

V

o

OutputVoltage VIN=4.8 V

V

o

OutputVoltage VIN=5.85 V

V

o

OutputVoltage VIN=6V

V

o

OutputCurrentLimit RL=0 150 mA

I

out

V

∆

LineRegulation V

o

I

QuiescentCurrent ON MODE

d

<50mA

1<I

o

<50 mA, -40< TJ< 125oC

1<I

o

<50mA

1<I

o

<50 mA, -40< TJ< 125oC

1<I

o

<50mA

1<I

o

<50 mA, -40< TJ< 125oC

1<I

o

1<I

<50 mA,

o

<50 mA, -40< TJ< 125oC

1<I

o

<50 mA,

1<I

o

1<I

<50 mA, -40< TJ< 125oC

o

<50 mA,

1<I

o

<50 mA, -40< TJ< 125oC

1<I

o

<50 mA,

1<I

o

<50 mA, -40< TJ< 125oC

1<I

o

+1< VIN<16V, Io=1mA

O(NOM)

-40 < T

I
I
I
I
I
I
I
I

< 125oC

J

=0mA

o

=0 mA -40< TJ<125oC

o

=1mA

o

=1 mA -40< TJ<125oC

o

=10mA

o

=10 mA -40< TJ< 125oC

o

=50mA

o

=50 mA -40< TJ< 125oC

o

2.821

2.807

2.750

2.970

2.955

2.895

3.168

3.152

3.088

3.267

3.250

3.184

3.762

3.743

3.667

4.800

4.777

4.680

4.950

4.925

4.825

2.85 2.879

2.893

2.950

33.030

3.045

3.105

3.2 3. 232

3.248

3.312

3.3 3. 333

3.350

3.416

3.8 3. 838

3.857

3.933

4.85 4.900

4.923

5.020

55.050

5.075

5.175

0.003 0.014

0.032

65

95

125

80

110
170

140

220
460

375

600

1200

%/V

OFF MODE

<0.18 V

V

INH

<0.18 V -40 < TJ< 125oC

V

INH

SVR Supply Voltage Rejection f = 1 KHz, C

DropoutVoltage Io=0mA

V

d

ControlInput LogicLow LOW = OutputOFF -40 < TJ<125oC0.18V

V

il

ControlInput LogicHigh HIGH = Output ON -40< TJ<125oC2 V

V

ih

ControlInput Current V

I

i

=0 mA -40< TJ<125oC

I

o

=1mA

I

o

=1 mA -40< TJ<125oC

I

o

=10mA

I

o

=10 mA -40< TJ< 125oC

I

o

=50mA

I

o

=50 mA -40< TJ< 125oC

I

o

=0V

INH

=5 V, -40< TJ<125oC

V

INH

=10µF63dB

out

eN OutputNoise Voltage(RMS) BW = 300 Hz to 50 KHz, C

=10µF160 µV

out

0

1
7

40

120

0
5

1

3

5
10
15
60
90

150
225

-1

15

V
V
V

V
V
V

V
V
V

V
V
V

V
V
V

V
V
V

V
V
V

µA
µ
µA
µ
µA
µ
µA
µ

µ
µA

mV
mV
mV
mV
mV
mV
mV
mV

µA
µ

in

A

A
A
A

A

A

4/11

LD2980

TYPICALPERFORMANCE CHARACTERISTICS

OutputVoltage vs Temperature

OutputVoltage vs Input Voltage

(unless otherwise specified T

OutputVoltage vs Temperature

OutputVoltage vs Input Voltage

=25oC, CIN=C

J

OUT

=1µF)

Line Regulationvs Temperature

Dropout Voltagevs Temperature

5/11

LD2980

TYPICALPERFORMANCE CHARACTERISTICS

DropoutVoltagevs OutputCurrent

QuiescentCurrent vs OutputCurrent

(continued)

QuiescentCurrent vs Temperature

S.V.R.vs Frequency

S.V.R.vs Temperature

6/11

S.V.R.vs Output Current

LD2980

TYPICALPERFORMANCE CHARACTERISTICS

Stability

(continued)

ReverseCurrentvs ReverseVoltage

OutputVoltage vs Inhibit Voltage Inhibit Current vs Temperature

SupplyVoltage Rejectionat V

VIN= 7.35 ± 2.5V, I

=50mA, f=1KHz VIN=9±2.5V,I

OUT

OUT

=2.85V

SupplyVoltage Rejectionat V

= 50mA, f=1KHz

OUT

OUT

=5V

7/11

LD2980

TYPICALPERFORMANCE CHARACTERISTICS

Line TransientResponse

VCC= 5V, I
(ESR=1Ω at 1KHz)

= 1 to 50mA, C

OUT

=10µF, CIN= 150nF

OUT

(continued)

Line TransientResponse

VCC= 5V, I

(ESR=1Ω at 1KHz)

= 50 to 1mA, C

OUT

OUT

Line TransientResponse Line TransientResponse

=10µF,CIN= 150nF

VCC= 4.75 to 5.25V, I

= 0.05A, C

OUT

(ESR=1Ω at 1KHz)

SupplyBoltage Rejection

V

=5V, VIN= 6V, V

OUT

8/11

=0to5V,CIN=C

INH

=10µF, CIN= 150nF

OUT

=1µF (Tant.)

OUT

VCC= 5.25 to 6.25V, I
(ESR=1Ω at 1KHz)

= 0.05A, C

OUT

=10µF, CIN= 150nF

OUT

SOT-89 MECHANICALDATA

LD2980

DIM.

MIN. TYP. MAX. MIN. TYP. MAX.

A 1.4 1.6 55.1 63.0
B 0.44 0.56 17.3 22.0

B1 0.36 0.48 14.2 18.9

C 0.35 0.44 13.8 17.3

C1 0.35 0.44 13.8 17.3

D 4.4 4.6 173.2 181.1

D1 1.62 1.83 63.8 72.0

E 2.29 2.6 90.2 102.4
e 1.42 1.57 55.9 61.8

e1 2.92 3.07 115.0 120.9

H 3.94 4.25 155.1 167.3
L 0.89 1.2 35.0 47.2

mm mils

P025H

9/11

LD2980

SOT23-5L MECHANICAL DATA

DIM.

MIN. TYP. MAX. MIN. TYP. MAX.

A 0.90 1.45 35.4 57.1
A1 0.00 0.15 0.0 5.9

A2 0.90 1.30 35.4 51.2

b 0.35 0.50 13.7 19.7

C 0.09 0.20 3.5 7.8

D 2.80 3.00 110.2 118.1

E 2.60 3.00 102.3 118.1

E1 1.50 1.75 59.0 68.8

L 0.35 0.55 13.7 21.6

e 0.95 37.4

e1 1.9 74.8

mm mils

10/11

LD2980

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11/11