AOZ1081

Rev. 1.1 April 2009

www.aosmd.com

Page 5 of 16

Electrical Characteristics

Note:

3. Specification in BOLD indicate an ambient temperature range of -40°C to +85°C. These specifications are guaranteed by design.

Symbol

Parameter

Conditions

Min.

Typ.

Max.

Units

Supply Voltage

4.5

16

V

Input Under-Voltage Lockout

Threshold

4.0

3.7

V

Supply Current (Quiescent)

>1.2V

2

3

mA

Shutdown Supply Current

1

10

µA

Feedback Voltage

0.2375

0.25

0.2625

V

Load Regulation

0.5

%

Line Regulation

0.5

%

Feedback Voltage Input Current

200

nA

EN Input Threshold

Off Threshold

On Threshold

2.0

0.6

V

EN Input Hysteresis

100

mV

MODULATOR

Frequency

850

1000

1150

kHz

Maximum Duty Cycle

100

%

Minimum Duty Cycle

12

%

Error Amplifier Voltage Gain

500

V / V

Error Amplifier Transconductance

200

µA / V

PROTECTION

Current Limit

2.5

4.0

A

Output Over-Voltage Protection

Threshold

Off Threshold

On Threshold

330

240

mV

Over-Temperature Shutdown Limit

150

°C

Soft Start Interval

400

µs

OUTPUT STAGE

High-Side Switch On-Resistance

97

166

130

200

m

Ω