-0.3V to

20V

4.75V to

18V

Operating Temperature

-20°C to +85°C

All Other Pins

-0.3 to 6V

Junction Temperature

150°C

Lead Temperature

260°C

Storage Temperature

-

55°C to 150°C

Parameters

Condition

Min

Typ

Max

Units

Feedback Voltage

1.22

V

Upper Switch On Resistance

0.22

Ω

Lower Switch On Resistance

10

Ω

Upper Switch Leakage

10

µA

Current Limit

2.4

2.

80

A

Oscillator Frequency

420

KHz

Short Circuit Frequency

42

KHz

Maximum Duty Cycle

90

%

Minimum Duty Cycle

0

%

Enable Threshold

0.7

1.0

1.3

V

Under Voltage Lockout Threshold High Going

2.0

2.5

3.0

V

Under Voltage Lockout Threshold Hysteresis

200

mV

Shutdown Supply current

25

50

µA

Operating Supply current

1.0

1.5

mA

Thermal Shutdown

160

°C

Note 1. Exceeding these ratings may damage the device.

Note 2. The device is not guaranteed to function outside its operating rating.

Pin Description

BS 1

2

3

4

5

6

7

8

IN

SW

GND

N/C

EN

COMP

FB

Advanced Monolithic Systems http://www.ams-semitech.com

2

AMS1067