SGM2122-YYN6G datasheet, PDF - EEWORLD Datasheet

SGM2122

Dual, Low Dropout,

250mA LDO Regulators

GENERAL DESCRIPTION

The SGM2122 is a dual, low-power, low-dropout, CMOS

linear voltage regulator. It operates from a 2.5V to 5.5V

input and delivers up to 250mA at each channel.

The SGM2122 is the perfect choice for low voltage, low

power. The ground current is 190μA (both LDO’s enabled

and active) that makes this part attractive for battery

operated power systems. The SGM2122 also offers low

dropout voltage (250mV at 250mA output) to prolong

battery life in portable electronics.

Separate enable pins control each individual LDO output.

The EN function allows the output of each regulator to be

turned off independently, resulting in greatly reduced

power consumption. Other features include a 10nA

logic-controlled shutdown mode, foldback current limit

and thermal shutdown protection.

The SGM2122 is available in Green SOT-23-6 package.

It operates over an ambient temperature range of -40℃

to +85℃.

GND

2

OUT2

1

6

OUT1

FEATURES



Highly Accurate: ±2%



Ultra-Low Dropout Voltage:

250mV at 250mA Output



190µA No-Load Supply Current



Quick Auto-Discharge in Shutdown Status



Thermal-Overload Protection



Output Current Limit



10nA Logic-Controlled Shutdown



Operating Temperature Range: -40℃ to +85℃



Small Package

PIN CONFIGURATION

(TOP VIEW)

SGM2122

SYYxx

5

IN

EN2

3

4

EN1

SOT-23-6

APPLICATIONS

Cellular Telephones

Cordless Telephones

PCS Telephones

PCMCIA Cards

Modems

MP3 Player

Hand-Held Instruments

Palmtop Computers

Wireless LAN

Portable/Battery-Powered Equipment

NOTE: The location of pin 1 on the SGM2122 is determined by

orienting the package marking as shown.

TYPICAL APPLICATION CIRCUIT

OUTPUT2

1μF

2

5

1μF

1

6

OUTPUT1

1μF

INPUT

OUT2

OUT1

GND

IN

SGM2122

ON

OFF

3

EN2

EN1

4

OFF

ON

SG Micro Corp

www.sg-micro.com

REV. A. 4

SGM2122

PACKAGE/ORDERING INFORMATION

ORDERING

NUMBER

SGM2122-AYN6G/TR

SGM2122-CYN6G/TR

SGM2122-DYN6G/TR

SGM2122-EYN6G/TR

SGM2122-GYN6G/TR

SGM2122-HYN6G/TR

SGM2122-IYN6G/TR

SGM2122-KYN6G/TR

SGM2122-MYN6G/TR

SGM2122-NYN6G/TR

SGM2122-OYN6G/TR

SGM2122-PYN6G/TR

SGM2122-QYN6G/TR

SGM2122-RYN6G/TR

SGM2122-SYN6G/TR

SGM2122-TYN6G/TR

SGM2122-UYN6G/TR

SGM2122-VYN6G/TR

SGM2122-WYN6G/TR

SGM2122-XYN6G/TR

SGM2122-YYN6G/TR

SGM2122-ABYN6G/TR

V

OUT1

2.8V

2.5V

3.3V

3.0V

2.8V

1.5V

2.5V

1.3V

1.5V

3.3V

1.8V

1.2V

3.3V

1.8V

V

OUT2

2.8V

3.0V

2.5V

1.8V

2.5V

1.8V

1.2V

1.3V

1.5V

2.8V

1.5V

2.8V

3.3V

3.0V

3.3V

2.8V

1.2V

PIN-

PACKAGE

SOT-23-6

SPECIFIED

TEMPERATURE

RANGE

-40℃ to +85℃

Dual, Low Dropout,

250mA LDO Regulators

PACKAGE

MARKING

S0CXX

S0DXX

S0EXX

S0FXX

S10XX

S11XX

S12XX

S13XX

S14XX

S15XX

S16XX

S17XX

S18XX

S19XX

S1AXX

S1BXX

S1CXX

S1DXX

S1EXX

S28XX

S29XX

S42XX

PACKAGE

OPTION

Tape and Reel, 3000

NOTE: Order number and package marking are defined as the follow:

ORDER NUMBER

SGM2122- X X X G / TR

Tape and Reel

Green Product

Package Type

N6

SOT-23-6

MARKING INFORMATION

SYY X X

Month assembled ("A" = Jan. "B" = Feb.

…

"L" = Dec.)

Year assembled ("9" = 2009, "A" = 2010

…)

Identify the product

For example: S0C9A (2009 year, the 1st month)

Operating Temperature Range

Y

-40℃ to +85℃

Output Voltages

A : 2.8V (output1), 2.8V (output2)

C : 2.8V (output1), 3.0V (output2)

D : 2.8V (output1), 2.5V (output2)

.

SG Micro Corp

www.sg-micro.com

2

SGM2122

ABSOLUTE MAXIMUM RATINGS

IN to GND..................................................................-0.3V to 6V

Output Short-Circuit Duration ..........................................Infinite

EN to GND...............................................................-0.3V to V

IN

OUT to GND...............................................-0.3V to (V

IN

+ 0.3V)

Power Dissipation, P

D

@ T

A

= 25℃

SOT-23-6 .........................................................................0.4W

Package Thermal Resistance

SOT-23-6,

θ

JA

............................................................. 310℃/W

Dual, Low Dropout,

250mA LDO Regulators

Operating Temperature Range........................-40℃ to +85℃

Junction Temperature.....................................................150℃

Storage Temperature Range..........................-65℃ to +150℃

Lead Temperature (soldering, 10s)................................260℃

ESD Susceptibility

HBM................................................................................4000V

MM....................................................................................400V

NOTE:

Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress

ratings only, and functional operation of the device at these or any other conditions beyond those indicated in the operational sections

of the specifications is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability.

CAUTION

This integrated circuit can be damaged by ESD if you don’t pay attention to ESD protection. SGMICRO recommends that all

integrated circuits be handled with appropriate precautions. Failure to observe proper handling and installation procedures can cause

damage. ESD damage can range from subtle performance degradation to complete device failure. Precision integrated circuits may

be more susceptible to damage because very small parametric changes could cause the device not to meet its published

specifications.

SGMICRO reserves the right to make any change in circuit design, specification or other related things if necessary without notice at

any time. Please contact SGMICRO sales office to get the latest datasheet.

PIN DESCRIPTION

1

2

3

4

5

6

NAME

OUT2

GND

EN2

EN1

IN

OUT1

Channel2 Output Voltage.

Common Ground.

On/Off Control 2. A logic low reduces the supply current to 10nA.

On/Off Control 1. A logic low reduces the supply current to 10nA.

Supply Input.

Channel1 Output Voltage.

FUNCTION

NOTE: If EN1 and EN2 are both low, both regulators and the reference turn off.

SG Micro Corp

www.sg-micro.com

3

SGM2122

Dual, Low Dropout,

250mA LDO Regulators

ELECTRICAL CHARACTERISTICS

(V

IN

= V

OUT (NOMINAL)

+ 0.5V or 2.5V (whichever is greater), T

A

= -40℃ to +85℃. Typical values are at T

A

= +25℃, for each LDO unless

otherwise specified.)

PARAMETER

Input Voltage

Output Voltage Accuracy

Maximum Output Current

Current Limit

Ground Pin Current

Dropout Voltage

Line Regulation

Load Regulation

Power Supply Rejection Rate

SHUTDOWN

EN Input Threshold

EN Input Bias Current

Shutdown Supply Current

Shutdown Exit Delay

(2)

(1)

(3)

SYMBOL

V

IN

CONDITIONS

I

OUT

= 0.1mA, T

A

= +25℃

MIN

2.5

-2

250

310

TYP

MAX

5.5

+2

UNITS

V

%

mA

I

LIM

I

Q

EN = V

IN

, both LDOs No Load

I

OUT

= 1mA

ΔV

LNR

ΔV

LDR

PSRR

V

IH

V

IL

I

B(SHDN)

I

Q(SHDN)

I

OUT

= 250mA

V

IN

= 2.5V or (V

OUT

+ 0.5V) to 5.5V,

I

OUT

= 1mA

I

OUT

= 0.1mA to 250mA, C

OUT

= 1µF

I

LOAD

= 50mA, C

OUT

= 1µF

f = 100Hz

500

190

1

250

0.02

0.004

71

350

0.15

0.01

295

μA

mV

%/V

%/mA

dB

V

IN

= 2.5V to 5.5V

EN = 0V and EN = 5.5V

EN1 = EN2 = 0.4V

C

OUT

= 1µF, No load

T

A

= +25℃

T

A

= +85℃

T

A

= +25℃

T

A

= +85℃

T

A

= +25℃

2.0

0.4

0.01

20

155

20

1

V

μA

μs

℃

THERMAL PROTECTION

Thermal Shutdown Temperature

Thermal Shutdown Hysteresis

T

SHDN

ΔT

SHDN

NOTES:

1. The dropout voltage is defined as V

IN

- V

OUT

, when V

OUT

is 100mV below the value of V

OUT

for V

IN

= V

OUT

+ 0.5V. (Only applicable

for V

OUT

= +2.5V to +3.3V)

2. Time needed for V

OUT

to reach 95% of final value.

3. Each channel provides 300mA of maximum output current when the condition of dissipating heat is good.

SG Micro Corp

www.sg-micro.com

4

SGM2122

Dual, Low Dropout,

250mA LDO Regulators

TYPICAL OPERATING CHARACTERISTICS

V

IN

= V

OUT (NOMINAL)

+ 0.5V or 2.5V (whichever is greater), C

IN

= 1μF, C

OUT

= 1μF, T

A

= +25℃, unless otherwise noted.

Output Voltage Accuracy vs. Temperature

0

Output Voltage Accuracy (%)

Ground Pin Current vs. Temperature

240

Ground Pin Current (μA)

225

210

195

180

165

150

No Load

-40

-15

10

35

Temperature (℃)

60

85

SGM2122-E

-0.1

-0.2

-0.3

-0.4

-0.5

-0.6

-40

-15

10

35

Temperature (℃)

60

85

Output Voltage vs. Input Voltage

5

4

Output Voltage (V)

3

2

1

0

0 0.5 1 1.5 2 2.5 3 3.5 4 4.5 5 5.5

Input Voltage (V)

V

OUT

= 1.8V

No Load

V

OUT

= 2.8V

Ground Pin Current vs. Input Voltage

240

Ground Pin Current (µA)

200

160

120

80

40

No Load

0

0 0.5 1 1.5 2 2.5 3 3.5 4 4.5 5 5.5

Input Voltage (V)

SGM2122-E

300

Dropout Voltage (mV)

250

Dropout Voltage vs. Load Current

T

A

= +85℃

T

A

= +25℃

Ground Pin Current vs. Load Current

400

Ground Pin Current (µA)

350

300

250

200

150

Both Output Loaded

100

250

200

150

100

50

V

OUT

= 2.8V

0

50

100

150

200

Load Current (mA)

T

A

= -40℃

0

50

100

150

Load Current (mA)

200

250

SG Micro Corp

www.sg-micro.com

5

SGM2122-YYN6G

SGM2122-YYN6G Overview

SGM2122-YYN6G Preview

Recommended Resources