Advanced Monolithic Systems, Inc.

www.advanced-monolithic.com

Phone (925) 443-0722

Fax (925) 443-0723

AMS4106

ABSOLUTE MAXIMUM RATINGS

-0.3V to 30V

LX

Internally Limited

F/B

-0.3 to 8.0V

FDR (steady state current)

500 mA

EN

-0.3V to 8.0V

COMP

3 mA

FSET

-0.3V to 4.0V

FDR (steady state current)

100 mA

SS

-0.3V to 4.0V

LX (steady state current)

500 mA

BST

VI (PH) + 8.0V

COMP

3 mA

FDR

-0.3V to 8.5V

SS PWRGD

10 mA

PWRGD

0.3V to 30V

AGND to PGND

±0.3V

COMP

0.3V to 30V

ESD

2kV

LX

-1.5V to 30V

Junction Temperature

+150°C

Lead Temperature1,6 mm for 10 sec.

260°C

Storage Temperature

-65°C to +150°C

Stresses beyond those listed under absolute maximum ratings may cause permanent damage to the device. These are stress ratings

only, and functional operation of the device at these or any other conditions beyond those indicated under recommended operating

conditions is not implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.

ELECTRICAL CHARACTERISTICS

PARAMETER

TEST CONDITIONS

AMS4106

Min.

Typ.

Max.

Units

SUPPLY CURRENT

Quiescent current

Operating Current, LX pin open,

No external low side MOSFET,

3

12

mA

Shutdown, EN= 0V

0.5

µA

Start threshold voltage

4.32

4.49

V

Stop threshold voltage

3.69

3.97

V

VIN

Hysteresis

350

mV

REFERENCE SYSTEM ACCURACY

0.588

0.600

0.612

V

Reference voltage

0.600

V

OSCILLATOR (RT PIN)

F set open

200

250

300

F set to GND

kHz

Internally set PWM switching

frequency

F set to VCC

kHz

ERROR AMPLIFIER F/B and COMP PINS

Error amplifier Sink current

Running

60

85

µA

Error amplifier Source current

Running

1.0

98

µA

Error amplifier Source current

Start-up

20

µA