LTC3406B datasheet(2/16 Pages) LINER

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LTC3406B

3406bfa

SYMBOL

PARAMETER

CONDITIONS

MIN

TYP

MAX

UNITS

IVFB

Feedback Current

●

±30

VFB

Regulated Feedback Voltage

LTC3406B (Note 4) TA = 25°C

0.5880

0.6

0.6120

LTC3406B (Note 4) 0°C ≤ TA ≤ 85°C

0.5865

0.6

0.6135

LTC3406B (Note 4) –40°C ≤ TA ≤ 85°C

●

0.5850

0.6

0.6150

∆VFB

Reference Voltage Line Regulation

VIN = 2.5V to 5.5V (Note 4)

●

0.04

0.4

%/V

VOUT

Regulated Output Voltage

LTC3406B-1.5

●

1.455

1.500

1.545

LTC3406B-1.8

●

1.746

1.800

1.854

∆VOVL

Output Overvoltage Lockout

∆VOVL = VOVL – VFB, LTC3406B

∆VOVL = VOVL – VOUT, LTC3406B-1.5/LTC3406B-1.8

2.5

7.8

∆VOUT

Output Voltage Line Regulation

VIN = 2.5V to 5.5V

●

0.04

0.4

IPK

Peak Inductor Current

VIN = 3V, VFB = 0.5V or VOUT = 90%,

0.75

1.25

Duty Cycle < 35%

VLOADREG

Output Voltage Load Regulation

0.5

%/V

VIN

Input Voltage Range

●

2.5

5.5

Input DC Bias Current

(Note 5)

VFB = 0.5V or VOUT = 90%

300

400

µA

Shutdown

VRUN = 0V, VIN = 4.2V

0.1

µA

fOSC

Oscillator Frequency

VFB = 0.6V or VOUT = 100%

●

1.2

1.5

1.8

MHz

VFB = 0V or VOUT = 0V

210

kHz

RPFET

RDS(ON) of P-Channel FET

ISW = 100mA

0.4

0.5

Ω

RNFET

RDS(ON) of N-Channel FET

ISW = –100mA

0.35

0.45

Ω

ILSW

SW Leakage

VRUN = 0V, VSW = 0V or 5V, VIN = 5V

±0.01

±1

µA

LTC3406BES5

TJMAX = 125°C, θJA = 250°C/ W, θJC = 90°C/ W

ORDER PART

NUMBER

Input Supply Voltage .................................. – 0.3V to 6V

RUN, VFB Voltages ..................................... – 0.3V to VIN

SW Voltage .................................. – 0.3V to (VIN + 0.3V)

P-Channel Switch Source Current (DC) ............. 800mA

N-Channel Switch Sink Current (DC) ................. 800mA

S5 PART MARKING

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

LTE2

ABSOLUTE

AXI U

RATI GS

PACKAGE/ORDER I FOR ATIO

(Note 1)

Peak SW Sink and Source Current ........................ 1.3A

Operating Temperature Range (Note 2) .. – 40°C to 85°C

Junction Temperature (Notes 3, 6) ...................... 125°C

Storage Temperature Range ................ – 65°C to 150°C

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

LTC3406BES5-1.5

LTC3406BES5-1.8

ORDER PART

NUMBER

S5 PART MARKING

LTE3

LTE4

TJMAX = 125°C, θJA = 250°C/ W, θJC = 90°C/ W

RUN 1

GND 2

SW 3

5 VOUT

4 VIN

TOP VIEW

S5 PACKAGE

5-LEAD PLASTIC TSOT-23

The

● denotes specifications which apply over the full operating

temperature range, otherwise specifications are TA = 25°C. VIN = 3.6V unless otherwise specified.

ELECTRICAL CHARACTERISTICS

RUN 1

GND 2

SW 3

5 VFB

4 VIN

TOP VIEW

S5 PACKAGE

5-LEAD PLASTIC TSOT-23

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