LTC3706

4

3706fb

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 LTC3706E is guaranteed to meet the performance specifica-

tions over the 0°C to 85°C operating temperature range. Specifications

over the –40°C to 85°C operating temperature range are assured by

design, characterization and correlation with statistical process controls.

The LTC3706I is guaranteed and tested over the full –40°C to 85°C

operating temperature range.

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

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

–20

20

%

Maximum PLL Sync Frequency

500

kHz

Minimum PLL Sync Frequency

75

kHz

PGOOD Output

Power Good Upper Threshold

115

117

119

%

Power Good Lower Threshold

91.5

93

94.5

%

Power Good Lower Threshold

89.5

91

92.5

%

ADA

Gain

0.994

1

1.006

V/V

CMRR DA

Common Mode Rejection Ratio

75

dB

Input Resistance

80

kΩ

–3dB Bandwidth

3MHz