LTC3407

3

sn3407 3407fs

TYPICAL PERFOR A CE CHARACTERISTICS

1.70

1.65

1.60

1.55

1.50

1.45

1.40

1.35

1.30

1.8

1.7

1.6

1.5

1.4

1.3

1.2

SUPPLY VOLTAGE (V)

2

3407 G06

3

45

6

INPUT VOLTAGE (V)

2

3407 G04

3407 G01

3407 G02

3407 G03

3

45

6

TEMPERATURE (°C)

–50

25

75

3407 G05

–25

0

50

100

125

100

95

90

85

80

75

70

65

60

CIRCUIT OF FIGURE 1

CIRCUIT OF FIGURE 1

CIRCUIT OF FIGURE 1

CIRCUIT OF FIGURE 1

600mA

10mA

100mA

1mA

SW

5V/DIV

100mV/DIV

200mA/DIV

SW

5V/DIV

10mV/DIV

200mA/DIV

200mV/DIV

500mA/DIV

500mA/DIV

4µs/DIV

1µs/DIV

20µs/DIV

Load Step

Burst Mode Operation

Pulse Skipping Mode

Efficiency vs Input Voltage

Oscillator Frequency vs Supply

Voltage

Oscillator Frequency vs

Temperature

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

of a device may be impaired.

Note 2: The LTC3407E is guaranteed to meet specified performance from

0°C to 70°C. Specifications over the – 40°C and 85°C operating

temperature range are assured by design, characterization and correlation

with statistical process controls.

Note 3: The LTC3407 is tested in a proprietary test mode that connects

Note 4: Dynamic supply current is higher due to the internal gate charge

being delivered at the switching frequency.

Note 6: The DFN switch on-resistance is guaranteed by correlation to

wafer level measurements.

SYMBOL

PARAMETER

CONDITIONS

MIN

TYP

MAX

UNITS

POR

Power-On Reset Threshold

8.5

%

–8.5

%

Power-On Reset On-Resistance

100

200

Ω

Power-On Reset Delay

262,144

Cycles

RUN Threshold

●

0.3

1

1.5

V

RUN Leakage Current

●

0.01

1

µA