SGS Thomson Microelectronics ST2L01PT, ST2L01K5 Datasheet

ST2L01

DUAL VOLTAGE REGULATOR

■ V

■ GUARANTEED OUTPUT1 CURRENT: 1A

■ GUARANTEED OUTPUT2 CURRENT: 1A

■ ±2% OUTPUT TOLERANCE (AT 25°C)

■ TYPICAL DROPOUT 1.1V

■ INTERNAL POWER AND THERMAL LIMIT

■ STABLE WITH LOW ESR OUTPUT

= +3.3V FIXED

OUT1

= 1.25 TO 3.0V ADJUSTABLE

OUT2

(I

OUT1

= I

OUT2

=1A)

CAPACITOR

■ OPERATING TEMPERA TURE RANGE:

0°C TO 125°C

■ AVAILABLE IN PPAK AND SPAK-5L

(PowerFlex) PACKAGE

DESCRIPTION

Specifically designed for data storage applications, this device integrates two voltage regulators, each one able to supply 1A. It is assembled in PPAK and in a new surface mounting pa ckage named SPAK ( PowerFle x) at 5 pins. The first regulator block supply 3.3V to power the Read Channel and Memory Chips requiring this voltage. The second one is an Adjustable output voltage from 1.25V to 3.0V that

PPAK

SPAK-5L

(PowerFlex

)

could power several kind of different micro-controllers. Both outputs are current limited and overtemperature protected. The very good thermal performances of the package SPAK with only 2°C/W of Thermal Resistance Junction to Case is important to underline.

SCHEMATIC DIAGRAM

Thermal

Protection

Err-Amp

Err-Amp Power OutputVREF2

Over current

Protection

Power OutputVREF1

Over current

Protection

RA

RB

GND

VOUT1

VOUT2

ADJ

1/12March 2002

ST2L01

ABSOLUTE MAXIMUM RATINGS

Symbol Parameter Value Unit

V

ESD

T

GENERAL OPERATING CONDITION

Symbol Parameter Value Unit

V

∆V

THERMAL DATA

Symbol Parameter SPAK-5L PPAK Unit

R

thj-case

Input Voltage

IN

ESD Tolerance (Human Body Model) Storage Temperature Range

stg

Operating Junction Temperature Range

J

Input Voltage

IN

Input Voltage Ripple

IN

t

Input Voltage Rise Time (10% to 90%)

r

t

Input Voltage Fall Time (90% to 10%)

f

Thermal Resistance Junction-case

10 V

4KV

-55 to +125 °C

0 to +125 °C

4.75 to 5.25 V

±0.15 V

≥ 1 µs ≥ 1 µs

2 8 °C/W

CONNECTION DIAGRAM (top view)

PPAK SPAK-5L

PIN DESCRIPTION

Pin N° Symbol Name and Function

1V

I

Input pin: bypass with a 1µF capacitor to GND

2 ADJ ADJ pin: resistor divider connection 3 GND Ground pin 4V

5V

O2 O1

Output Pin: adjustable output voltage; bypass with a 1µF capacitor to GND Output Pin: fixed (3.3V) output voltage; bypass with a 1µF capacitor to GND

ORDERING INFORMATION

TYPE SPAK (Power Flex) 5 leads (*) PPAK (*)

ST2L01 ST2L01K5 ST2L01PT

(*) Avai l abl e in Tape & Re el wi th the suffix "R"

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ST2L01

TYPICAL APPLICATION CIRCUIT

R

VO = V

REF

Note: C

value could be lowered down to 470n F Ceramic Capacitor (X7R);

O1

C

, CO1 and CO2 capacitors must be located not more than 0.5" from the outputs pins of t he device.

I

For mor e details about Capacitors read the "Application Hint s"

ELECTRICAL CHARACTERISTICS OF OUTPUT 1 (VI=5V, IO1=10mA Tj = 0 to 125°C unless otherwise

specified. Typical values are referred at T

Symbol Parameter Test Conditions Min. Typ. Max. Unit

I

Input Current IO1 = IO2 =0 Tj = 0 to 125°C 15 28 mA

I

V

Output Voltage 1 Tj = 25°C 3.23 3.3 3.37 V

O1

I

O1

T

∆V

SVR1 Supply Voltage Rejection V

∆V ∆V

Note 1: Low duty cycle p ul se testing wi t h Kelvin connections are required in order to maintain accurate data Note 2: Dropout Voltage is defined as the minimum differential voltage between V

when the output voltage drops 1% below its nominal value. Note 3: Transient response is defined with a step change in load from 10mA to 500mA as the time from the load step until the output voltage

reaches it’s minimum value. Note 4: Min i m um lo ad current is defined as the minimum current requi red at the output in ord er for the output voltage to maintain regulation. Note 5: Guaranteed by design, not tested in production.

Line Regulation 1 VI = 4.75 to 5.25V 0.1 6 mV

O1

Load Regulation 1 IO = 0.01 to 1A (Note 1) 3 12 mV

OUT1

V

Dropout Voltage 1 IO = 1A Tj = 0 to 125°C

D1

(Note 2)

t

Transient Response IO = 10 to 500mA t

TR

(Note 3, 5)

Current Limit 1 RL = 0 Tj = 0 to 125°C 1 A

I

SC1

I

Minimum Load Current 1 Tj = 0 to 125°C (Note 4) 0 mA

O1

I

O1

T (Note 5)

Thermal Regulation I

O

eN1 Output Noise B= 10Hz to 10KHz (Note 5) 40 µVrms

Temperature Stability Tj = 0 to 125°C (Note 5) 0.5 %V

O1

Long Term Stability Tj = 125°C, 1000Hrs (Note 5) 0.3 %V

O1

= 25°C, CI = 1µF (Tantalum), CO1 = CO1 =1µF (X7R)

j

= 5mA to 1A VI = 4.75 to 5.25V

= 0 to 125°C

j

3.2 3.3 3.4

1.1 1.3 V

= t

= 1µs

fall

f

= 100Hz 60 68 dB

I

f

= 1KHz 60 70

I

f

= 10KHz 50 65

I

f

= 100KHz 30 38

I

= 30ms (Note 5) 0.1 %/W

and VO requir ed to m anta in re gulat ion at VO. It is measured

I

= 5 ±0.25V

I

= 100 mA

= 0 to 125°C

j

= 1A, t

rise

PULSE

<1 µs

1

(1 + )+I

R

2

ADJR1

O O

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ST2L01

ELECTRICAL CHARACTERISTICS OF OUTPUT 2 (VI=5V, IO2=10mA Tj = 0 to 125°C unless otherwise

specified. Typical values are referred at T "Typical Application Circuit "figure with R

Symbol Parameter Test Conditions Min. Typ. Max. Unit

V

Operating Input Voltage IO2 =5mA to 1A Tj = 0 to 125°C 4.5 V

I

V

Output Voltage 2 Tj = 25°C 2.45 2.5 2.55 V

O2

V

∆V ∆V

∆I

SVR2 Supply Voltage Rejection V

∆V ∆V

Note 1: Low duty cycle p ul se testing wi t h Kelvin connections are required in order to maintain accurate data Note 2: Dropout Voltage is defined as the minimum differential voltage between V

when the output voltage drops 1% below its nominal value. Note 3: Transient response is defined with a step change in load from 10mA to 500mA as the time from the load step until the output voltage

reaches it’s minimum value. Note 4: Min i m um lo ad current is defined as the minimum current requi red at the output in ord er for the output voltage to maintain regulation. Note 5: Guaranteed by design, not tested in production.

Reference Voltage

REF

(measured between pins 4 and 2)

Line Regulation 2 VI = 4.75 to 5.25V 0.004 0.2 %

O2

Load Regulation 2 IO = 0.01 to 1A (Note 1) 0.08 0.4 %

O2

V

Dropout Voltage 2 IO = 1A Tj = 0 to 125°C

D2

Tj = 25°C 1.225 1.25 1.275 V I

T

(Note 2)

Transient Response IO = 10 to 500mA t

t

TR

(Note 3, 5)

I

Current Limit 2 RL = 0 Tj = 0 to 125°C 1 A

SC2

I

Minimum Load Current 2 Tj = 0 to 125°C (Note 4) 1 mA

O2

I

Adjust Pin Current Tj = 0 to 125°C 35 120 µA

ADJ

Adjust Pin Current IO1 = 5mA to 1A VI = 4.75 to 5.25V

ADJ

T

I T (Note 5)

Thermal Regulation 2 I

eN2 Output Noise 1 B= 10Hz to 10KHz (Note 5) 30 µVrms

Temperature Stability Tj = 0 to 125°C (Note 5) 0.5 %V

REF

Long Term Stability Tj = 125°C, 1000Hrs (Note 5) 0.3 %V

REF

= 25°C, CI = 1µF (Tantalum), CO1 = CO1 =1µF (X7R). Refer to

j

=120Ω".

1=R2

= 5mA to 1A VI = 4.75 to 5.25V

O1

= 0 to 125°C

j

1.2125 1.25 1.2875

1.1 1.3 V

= t

rise

fall

= 1µs

<1 µs

05µA

= 0 to 125°C

j

= 5 ±0.25V

I

= 100 mA

O1

= 0 to 125°C

j

= 1A, t

O

PULSE

f

= 100Hz 70 77 dB

I

f

= 1KHz 70 80

I

f

= 10KHz 50 65

I

f

= 100KHz 30 43

I

= 30ms (Note 5) 0.1 %/W

and VO requir ed to m anta in re gulat ion at VO. It is measured

I

O O

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