3

LTC3726

3726fb

The

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: The LTC3726E is guaranteed to meet the performance

specifications from 0

°C to 85°C junction temperature. Specifications over

the –40

°C to 85°C operating temperature range are assured by design,

characterization and correlation with statistical process controls. The

LTC3726I is guaranteed and tested over the full – 40

°C to 85°C operating

temperature range.

by the formula:

Refer to the Applications Information section for details.

voltage near the internal 0.6V reference voltage to obtain the specified ITH

Note 5: Operating supply current is measured in test mode. Dynamic

supply current is higher due to the internal gate charge being delivered at

the switching frequency. See Typical Performance Characteristics.

SYMBOL

PARAMETER

CONDITIONS

MIN

TYP

MAX

UNITS

Operating Voltage Range

5

10

V

Supply Current

Operating

4.2

mA

Shutdown

700

µA

UV Lockout

●

4.52

4.60

4.70

V

UV Hysteresis

0.4

V

Oscillator and Phase-Locked Loop

FS/SYNC Pin Sourcing Current

20

µA

Oscillator Low Frequency Set Point

170

200

230

kHz

Oscillator High Frequency Set Point

255

300

345

kHz

Oscillator Resistor Set Accuracy

75k

–20

20

%

Maximum PLL Sync Frequency

500

kHz

Minimum PLL Sync Frequency

75

kHz