LTC3109IGN-PBF datasheet(3/24 Pages) LINER

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LTC3109

3109f

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 LTC3109 is tested under pulsed load conditions such that

TJ ≈ TA. The LTC3109E is guaranteed to meet specifications from

The l denotes the specifications which apply over the full operating

junction temperature range, otherwise specifications are for TA = 25°C (Note 2). VAUX = 5V unless otherwise noted.

PARAMETER

CONDITIONS

MIN

TYP

MAX

UNITS

Minimum Start-Up Voltage

Using 1:100 Transformer Turns Ratio, VAUX = 0V

±30

±50

No-Load Input Current

Using 1:100 Transformer Turns Ratios,

VIN = 30mV, VOUT2_EN = 0V, All Outputs Charged

and in Regulation

Input Voltage Range

Using 1:100 Transformer Turns Ratios

VSTARTUP

±500

Output Voltage

VS1 = VS2 = GND

VS1 = VAUX, VS2 = GND

VS1 = GND, VS2 = VAUX

VS1 = VS2 = VAUX

2.30

3.234

4.018

4.875

2.350

3.300

4.100

5.000

2.40

3.366

4.182

5.10

VAUX Quiescent Current

No Load, All Outputs Charged

µA

VAUX Clamp Voltage

Current Into VAUX = 5mA

5.0

5.25

5.55

VOUT Quiescent Current

VOUT = 3.3V, VOUT2_EN = 0V

0.2

µA

VOUT Current Limit

VOUT = 0V

N-Channel MOSFET On-Resistance

C2B = C2A = 5V (Note 3) Measured from VINA or

SWA, VINB or SWB to GND

0.35

LDO Output Voltage

0.5mA Load On VLDO

2.134

2.2

2.30

LDO Load Regulation

For 0mA to 2mA Load

0.5

LDO Line Regulation

For VAUX from 2.5V to 5V

0.05

0.2

LDO Dropout Voltage

ILDO = 2mA

100

200

LDO Current Limit

VLDO = 0V

VSTORE Leakage Current

VSTORE = 5V

0.1

0.3

µA

VSTORE Current Limit

VSTORE = 0V

VOUT2 Leakage Current

VOUT2 = 0V, VOUT2_EN = 0V

VS1, VS2 Threshold Voltage

0.4

0.85

1.2

VS1, VS2 Input Current

VS1 = VS2 = 5V

PGOOD Threshold (Rising)

Measured Relative to the VOUT Voltage

–7.5

PGOOD Threshold (Falling)

Measured Relative to the VOUT Voltage

–9

PGOOD VOL

Sink Current = 100µA

0.12

0.3

PGOOD VOH

Source Current = 0

2.1

2.2

2.3

PGOOD Pull-Up Resistance

MΩ

VOUT2_EN Threshold Voltage

VOUT2_EN Rising

0.4

1.0

1.3

VOUT2_EN Threshold Hysteresis

100

VOUT2_EN Pull-Down Resistance

MΩ

VOUT2 Turn-On Time

0.5

µs

VOUT2 Turn-Off Time

(Note 3)

0.15

µs

VOUT2 Current Limit

VOUT = 3.3V

0.2

0.3

0.5

VOUT2 Current Limit Response Time

(Note 3)

350

VOUT2 P-Channel MOSFET On-Resistance

VOUT = 5V (Note 3)

1.0

0°C to 85°C junction temperature. Specifications over the –40°C to

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

characterization and correlation with statistical process controls. The

LTC3109I is guaranteed over the full –40°C to 125°C operating junction

temperature range. Note that the maximum ambient temperature

is determined by specific operating conditions in conjunction with

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