LT3420/LT3420-1

3

3420fa

Note 1: Absolute Maximum Ratings are those values beyond which the life

of a device may be impaired.

Note 2: Rated breakdown with LT3420 in power delivery mode and power

switch off.

Note 3: The LT3420/LT3420-1 are guaranteed to meet performance

specifications from 0

°C to 70°C. Specifications over the –40°C to 85°C

PARAMETER

CONDITIONS

MIN

TYP

MAX

UNITS

LT3420, SW = 1A

220

340

mV

LT3420-1, SW = 0.5A

130

230

mV

Switch Leakage Current

0.01

1

µA

CHARGE Input Voltage High

1.5

V

CHARGE Input Voltage Low

0.2

V

CHARGE Pin Bias Current

4.5

15

µA

0.01

0.1

µA

DONE Output Signal High

3.3

V

DONE Output Signal Low

33

µA into DONE Pin

100

200

mV

operating temperature range are assured by design, characterization and

correlation with statistical process controls.

Note 5: Current limit guaranteed by design and/or correlation to static test.

TYPICAL PERFOR A CE CHARACTERISTICS

Output Voltage in Refresh Mode,

LT3420

Output Voltage in Refresh Mode,

LT3420

Charge Time, LT3420

TEMPERATURE (

°C)

–50

100

3420 G01

050

335

330

325

320

315

310

305

300

295

–25

25

75

125

FIGURE 1 CIRCUIT

2.5

3420 G02

4.0

3.5

3.0

5.5

5.0

4.5

6.0

FIGURE 1 CIRCUIT

335

330

325

320

315

310

305

300

295

2

3420 G03

45

3

6

10

8

6

4

2

0

FROM

50V TO 320V

FIGURE 1 CIRCUIT

UNLESS OTHERWISE

NOTED.

Graphs apply to both the LT3420 and LT34201-1 unless otherwise noted.