LTM8065

3

8065fa

For more information www.linear.com/LTM8065

ELECTRICAL CHARACTERISTICS

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.

Note 2: Unless otherwise noted, the absolute minimum voltage is zero.

Note 3: The LTM8065E is guaranteed to meet performance specifications

from 0°C to 125°C internal. Specifications over the full –40°C to

125°C internal operating temperature range are assured by design,

characterization and correlation with statistical process controls. The

LTM8065I is guaranteed to meet specifications over the full –40°C to

125°C internal operating temperature range. Note that the maximum

internal temperature is determined by specific operating conditions in

conjunction with board layout, the rated package thermal resistance and

other environmental factors.

PARAMETER

CONDITIONS

MIN

TYP

MAX

UNITS

Minimum Input Voltage

l

3.4

V

Output DC Voltage

0.97

18

V

V

Peak Output DC Current

3.5

A

RUN = 0V

BIAS = 0V, No Load, SYNC = 0V, Not Switching

3

8

µA

µA

Quiescent Current into BIAS

BIAS = 5V, RUN = 0V

BIAS = 5V, No Load, SYNC = 0V, Not Switching

1

5

12

µA

µA

mA

Line Regulation

0.5

%

Load Regulation

0.5

%

Output Voltage Ripple

10

mV

Switching Frequency

200

1

3

kHz

MHz

MHz

Voltage at FB

l

950

970

980

mV

Minimum BIAS Voltage

(Note 5)

3.2

V

RUN Threshold Voltage

0.9

1.06

V

RUN Current

1

µA

TR/SS Current

TR/SS = 0V

2

µA

TR/SS Pull Down

TR/SS = 0.1V

200

Ω

PG Threshold Voltage at FB (Upper)

FB Falling (Note 6)

1.05

V

PG Threshold Voltage at FB (Lower)

FB Rising (Note 6)

0.89

V

PG Leakage Current

PG = 42V

1

µA

PG Sink Current

PG = 0.1V

150

µA

SYNC Threshold Voltage

Synchronization

0.4

1.5

V

SYNC Voltage

To Enable Spread Spectrum

2.9

4.2

V

SYNC Current

SYNC = 0V

35

µA

Note 4: The LTM8065 contains overtemperature protection that is

intended to protect the device during momentary overload conditions. The

internal temperature exceeds the maximum operating junction temperature

when the overtemperature protection is active. Continuous operation

above the specified maximum operating junction temperature may impair

device reliability.

Note 5: Below this specified voltage, internal circuitry will draw power

Note 6: PG transitions from low to high.