ECL1121|Ultra low Power Consumption Low Dropout CMOS Voltage Regulators


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Ultra low Power Consumption

​​ Low  ​​ ​​ ​​ ​​​​ Dropout CMOS Voltage Regulators

ECL1121

 

 

 

General Description

The ECL1121 series are precise, low power consumption, high voltage; positive voltage regulators manufactured

using CMOS and laser trimming technologies. The series provides large currents with a significantly small dropout

voltage. The ECL1121 consists of a current limiter circuit, a driver transistor, a precision reference voltage and an

error correction circuit. The series is compatible with low ESR ceramic capacitors. The current limiter's feedback

circuit also operates as a short protect for the output current limiter and the output pin. Output voltage can be set

internally by laser trimming technologies. It is selectable in 100mV increments within a range of 1.2V to 5.0V.

SOT89, SOT23-3L, SOT-353 and ​​ SOT23-3B packages are available.

 

Features

Output Voltage Range: 1.2V to 5.0V(selectable in 100mV steps)

Highly Accurate: 2%

Dropout Voltage: 160mV @ 100mA (3.0V type)

Low Power Consumption: 1μA (TYP.)

Maximum Output Current : 250mA (Vin≥Vout+1V)

Internal protector: current limiter and short protector

Small packages

 

Applications

Battery powered equipment

Reference voltage sources

Cameras, Video cameras

Mobile phones

Communication tools

 

Package

SOT89

SOT353/SC70-5

SOT23-3L,SOT23-3B

 

Ordering/Marking Information

 

ECL1121 XX XX ​​ R

R:Tape & Reel

 

Output Voltage  ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​​​ Package Type

 ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​​​ 12=1.2V  ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​​​ B1SOT23-3L

 ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​​​ ​​ 13=1.3V  ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​​​ BFSOT23-3B

 ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​​​ 14=1.4V  ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​​​ B6SOT89

 ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​​​   ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​​​ B8SOT353

 ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​​​   ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​​​ C5SC70-5

 ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​​​ 50=5.0V

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Represents the product name

Symbol

Product Name

6/9/S

ECL1121◆◆◆◆◆

 

 

 

Represents the range of output voltage

 

Output Voltage RangeV

0.1~3.0

3.1~6.0

6.1~9.0

Symbol

5

6

7

 

​​ Represents the Output Voltage

 

Symbol

Output VoltageV

Symbol

Output VoltageV

0

-

3.1

-

F

1.6

4.6

-

1

-

3.2

-

H

1.7

4.7

-

2

-

3.3

-

K

1.8

4.8

-

3

-

3.4

-

L

1.9

4.9

-

4

-

3.5

-

M

2

5.0

-

5

-

3.6

-

N

2.1

5.1

-

6

-

3.7

-

P

2.2

5.2

-

7

-

3.8

-

R

2.3

5.3

-

8

-

3.9

-

S

2.4

5.4

-

9

-

4

-

T

2.5

5.5

-

A

-

4.1

-

U

2.6

5.6

-

B

1.2

4.2

-

V

2.7

5.7

-

C

1.3

4.3

-

X

2.8

5.8

-

D

1.4

4.4

 

Y

2.9

5.9

 

E

1.5

4.5

 

Z

3

6.0

 

 

​​ Represents the assembly lot no.

 

0~9, A~Z repeated (G, I, J, O, Q, W excepted)

 

 

 

 

 

 

Pin Configuration

 

 

 

 

 

 

 

Pin Assignment

Pin Number

Pin Name

Function

SOT353/SC70-5

SOT23-3L/B

SOT89

2

3

2

VIN

Supply Power

4

1

1

VSS

Ground

1,3

-

-

NC

No Connection

5

2

3

VOUT

Voltage Output

 

 

 

 

 

 

 

Function Block Diagram

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Absolute Maximum Ratings

 

Parameter

Symbol

Maximum Rating

Unit

Input Voltage

VIN

VSS-0.3~VSS+6

V

Output Current

VOUT

VSS-0.3~VIN+0.3

Power Dissipation

PD

SOT23-3L, SOT23-3LB

250

mW

SOT353

250

SOT89

500

Operating Ambient

Temperature

Topr

-40~+85

°C

Storage Temperature

Tstg

-40~+125

 

Caution: ​​ 

The ​​ absolute ​​ maximum ​​ ratings ​​ are ​​ rated ​​ values ​​ exceeding ​​ which ​​ the ​​ product ​​ could suffer ​​ physical ​​ damage.

These values must therefore not be exceeded under any conditions.

 

Typical Application Circuit

 

 

 

Caution ​​ 

The above connection diagram and constant will not guarantee successful operation. Perform thorough evaluation

using the actual application to set the constant.

 

Application Conditions

 

Input capacitor (CIN): 1.0µF or more

Output capacitor (CL): .01µF or more (tantalum capacitor)

Caution A general series regulator may oscillate, depending on the external components selected. Check that no

oscillation occurs with the application using the above capacitor.

 

Test Circuits

 

 

Electrical Characteristics

Item

Symbol

Condition

Min

Typ

Max

Unit

Circuit

Output Voltage

VOUT(E)1

VIN =VOUT(S)+1.0 V,

IOUT=10 mA

VOUT(S)

×0.98

VOUT(S)

VOUT(S)

×1.02

V

1

Output Current

IOUT

VIN≥VOUT(S)+1.0 V

280*1

mA

1

Dropout Voltage

Vdrop

IOUT=40mA

1.5 V ≤VOUT(S)≤2.5V

0.18

0.24

V

1

2.6 V ≤VOUT(S)≤3.3V

0.12

0.20

3.4 V ≤VOUT(S)≤5.0V

0.08

0.16

Line Regulations

VOUT1

VIN*VOUT

VOUT(S)+0.5 V ≤VIN≤5.5 V

IOUT=10 mA

0.05

0.2

%/V

Input Voltage

VOUT 2

VIN=VOUT(S)+1.0 V

1.0 mA ≤IOUT ≤50 mA

20

40

mV

Output Voltage

Temperature

Characteristics

VOUT

Ta*VOUT

VIN=VOUT(S)+1.0 V,

IOUT=10 mA

-40°C Ta ≤85°C

±100

ppm/

Supply Current

ISS1

VIN=VOUT(S)+1.0 V

0.8

1

2

μA

2

Input Voltage

VIN

——

1.8

6

V

Ripple-Rejection

|RR|

VIN=VOUT(S)+1.0 V,f=1.0 kHz

Vrip=0.5 Vrms, IOUT=30 mA

40

dB

1

Short current

Ishort

VIN=VOUT(S)+1.5 V,

15

mA

1

Current Limiter

Ilim

VIN=VOUT(S)+1.5 V,

380

mA

1

 

 

 

Note1:

Lower input voltage and the output voltage, maximum output current will decrease. Example:

IOUT (max)=150mA @(VIN=2.5V,VOUT=1.5V)

 

Typical Performance Characteristics3.0V output

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Package Information

SOT-89

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

SOT353/SC70-5