LTC1983-3 datasheet(2/12 Pages) LINER

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LTC1983-3/LTC1983-5

1983fa

VIN to GND................................................... –0.3V to 6V

SHDN Voltage .............................................. –0.3V to 6V

VOUT to GND (LTC1983-3) .................. 0.2V to VOUT Max

VOUT to GND (LTC1983-5) .................. 0.2V to VOUT Max

IOUT Max ............................................................. 125mA

Output Short-Circuit Duration .......................... Indefinite

Operating Temperature Range (Note 2) ...–40

°C to 85°C

Storage Temperature Range ................. – 65

°C to 125°C

Lead Temperature (Soldering, 10 sec).................. 300

°C

ORDER PART

NUMBER

S6 PART

MARKING

TJMAX = 125°C, θJA = 256°C/W

Consult LTC Marketing for parts specified with wider operating temperature ranges.

LTPC

LTYB

LTC1983ES6-3

LTC1983ES6-5

ABSOLUTE

AXI U

RATI GS

PACKAGE/ORDER I FOR ATIO

(Note 1)

ELECTRICAL CHARACTERISTICS

Burst Mode is a registered trademark of Linear Technology Corporation.

Note 1: Stresses beyond those listed under Absolute Maximum Ratings

may cause permanent damage to the device. Exposure to any Absolute

Maximum Rating condition for extended periods may affect device

reliability and lifetime.

The

● denotes the specifications which apply over the full operating

temperature range, otherwise specifications are at TA = 25°C. VIN = 5V, CFLY = 1µF, COUT = 10µF unless otherwise noted.

PARAMETER

CONDITIONS

MIN

TYP

MAX

UNITS

VIN Operating Voltage (Regulated Output Mode) (LTC1983-3)

●

3.0

5.5

(LTC1983-5)

5.0

5.5

VIN Minimum Startup Voltage

2.3

VOUT (LTC1983-3)

VIN ≥ 3.3V, IOUT ≤ 25mA

●

–2.88

–3

–3.12

VIN ≥ 5V, IOUT ≤ 100mA

●

–2.88

–3

–3.12

VOUT (LTC1983-5)

VIN ≥ 5V, VIN –5V ≥ IOUT • ROUT

●

– 4.8

–5

– 5.2

VIN Operating Current

VIN ≤ 5.5V, IOUT = 0µA, SHDN = VIN

●

µA

VIN Operating Current (Open-Loop Mode) (LTC1983-5)

VIN = 3.3V

2.5

VIN = 4.75V

VIN Shutdown Current

SHDN = 0V, VIN ≤ 5.5V

●

0.1

µA

Output Ripple

3.3

≤ VIN ≤ 5.5

mVP-P

Open-Loop Output Impedance (LTC1983-3): ROUT

VIN = 3.3V, VOUT = –3V

Ω

Open-Loop Output Impedance (LTC1983-5): ROUT

VIN = 3.3V, IOUT ≈ 50mA

Ω

VIN = 5V, IOUT ≈ 60mA

8.5

Ω

Oscillator Frequency

(Non Burst Mode

® Operation)

900

kHz

SHDN Input High

●

1.1

SHDN Input Low

●

0.3

SHDN Input Current

VSHDN = 5.5V

●

2.2

µA

VCC 1

VOUT 2

C+ 3

6 SHDN

5 GND

4 C–

TOP VIEW

S6 PACKAGE

6-LEAD PLASTIC SOT-23

Note 2: The LTC1983E-3/LTC1983E-5 are guaranteed to meet

performance specifications from 0

°C to 70°C. Specifications over the

–40

°C to 85°C operating temperature range are assured by design,

characterization and correlation with statistical process controls.

Order Options Tape and Reel: Add #TR

Lead Free: Add #PBF Lead Free Tape and Reel: Add #TRPBF

Lead Free Part Marking: http://www.linear.com/leadfree/

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