AIC2802

4

PARAMETER

SYMBOL

CONDITIONS

MIN

TYP

MAX UNITS

Shutdown Supply Current

0.3

3

A

Supply Current

1.9

2.4

mA

Feedback Voltage 1

4.5V

≤ V

0.9

0.925

0.95

V

Feedback Overvoltage 1Threshold

1.2

V

Feedback Voltage 2

4.5V

≤ V

0.588

0.6

0.612

V

Feedback Overvoltage 2Threshold

0.625

V

Error Amplifier Voltage Gain

400

V/V

Error Amplifier Transconductance

820

A/V

High-Side Switch On-Resistance

110

m



Low-Side Switch On-Resistance

85

m



High-Side Switch Leakage Current

10

A

Upper Switch Current Limit

Minimum Duty Cycle

4

5.5

A

Lower Switch Current Limit

From Drain to Source

0.9

A

COMP to Current Sense

Transconductance

5.2

A/V

Oscillation Frequency

300

340

380

KHz

Short Circuit Oscillation Frequency

110

KHz

Maximum Duty Cycle

90

%

Minimum On Time

220

ns

EN Shutdown Threshold Voltage

1.1

1.5

2.2

V

EN Shutdown Threshold Voltage

Hysteresis

220

mV

Under Voltage Lockout Threshold

3.7

4.1

V

Under Voltage Lockout Threshold

Hysteresis

210

mV

Soft-Start Period for Vout1

5

ms

Soft-Start Period for Vout2

0.5

ms

Vcpu Voltage

5

V

Thermal Shutdown

160

C

temperature range are assured by design, characterization and correlation with Statistical Quality

Controls (SQC).

Note 2: It is recommended to use duty ratio above 10% for minimizing resultant duty cycle jitter.