LTC3401 datasheet(2/16 Pages) LINER

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LTC3401

3401fa

(Note 1)

VIN, VOUT Voltages ...................................... – 0.5V to 6V

SW Voltage ................................................. – 0.5V to 6V

VC, Rt Voltages ......................... – 0.5V to (VOUT + 0.3V)

PGOOD, SHDN, FB, MODE Voltages ........... – 0.5V to 6V

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

TJMAX = 125°C

θJA = 130°C/ W 1 LAYER BOARD

θJA = 100°C/ W 4 LAYER BOARD

MS PART MARKING

ORDER PART

NUMBER

LTC3401EMS

LTPG

The q denotes specifications that apply over the full operating temperature range, otherwise specifications are at TA = 25°C.

VIN = 1.2V, VOUT = 3.3V unless otherwise noted.

PARAMETER

CONDITIONS

MIN

TYP

MAX

UNITS

Minimum Start-Up Voltage

ILOAD < 1mA

0.85

1.0

Minimum Operating Voltage

(Note 4)

0.5

Output Voltage Adjust Range

2.6

5.5

Feedback Voltage

1.22

1.25

1.28

Feedback Input Current

VFB = 1.25V

Quiescent Current—Burst Mode Operation

VC = 0V, MODE/SYNC = 3.3V (Note 3)

µA

Quiescent Current—SHDN

SHDN = 0V, Not Including Switch Leakage

0.1

µA

Quiescent Current—Active

VC = 0V, MODE/SYNC = 0V, Rt = 300k (Note 3)

440

800

µA

NMOS Switch Leakage

0.1

µA

PMOS Switch Leakage

0.1

µA

NMOS Switch On Resistance

0.16

Ω

PMOS Switch On Resistance

0.18

Ω

NMOS Current Limit

1.6

NMOS Burst Current Limit

0.66

Maximum Duty Cycle

Rt = 15k

Minimum Duty Cycle

Frequency Accuracy

Rt = 15k

1.6

2.4

MHz

MODE/SYNC Input High

1.4

MODE/SYNC Input Low

0.4

MODE/SYNC Input Current

VMODE/SYNC = 5.5V

0.01

µA

Error Amp Transconductance

∆I = –5µA to 5µA, VC = VFB

µmhos

PGOOD Threshold

Referenced to Feedback Voltage

– 6

– 9

– 12

ABSOLUTE

AXI U

RATI GS

PACKAGE/ORDER I FOR ATIO

ELECTRICAL CHARACTERISTICS

MODE

VIN

GND

SHDN

VOUT

PGOOD

TOP VIEW

MS PACKAGE

10-LEAD PLASTIC MSOP

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

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