EUP2983

DS2983 Ver1.2 Nov. 2008

4

Absolute Maximum Ratings (1)

IN to GND -------------------------------------------------------------------------- -0.3V to 31V

PGND,GND ------------------------------------------------------------------------ -0.3V to 0.3V

FB,LX,OVP to GND -------------------------------------------------------------- -0.3V to 34V

COMP,CTRL to GND ------------------------------------------------------------- -0.3V to 6V

Package Thermal Resistance

Junction Temperature ---------------------------------------------------------------- 150°C

Lead Temperature (Soldering, 10sec.) --------------------------------------------- 260°C

Storage Temperature Range -------------------------------------------------------- -65°C to +150°C

Recommend Operating Conditions (2)

Operation Temperature Range ------------------------------------------------------ -40°C to +85°C

Note (1): Stress beyond those listed under “Absolute Maximum Ratings” may damage the device.

Note (2): The device is not guaranteed to function outside the recommended operating conditions.

Electrical Characteristics

EUP2983

Parameter

Conditions

Min

Typ

Max.

Unit

Supply Voltage

6

25

V

Rising

4.8

5

5.2

V

UVLO Threshold

Falling

4.5

4.7

4.9

V

Continuous Switching

1.2

1.8

mA

Quiescent Current

120

200

uA

Rising

32

V

OVLO Threshold

Falling

30

V

20

40

60

µA

OVP Input Bias Current

1

µA

Error Amplifier

CTRL to FB Regulation

90

100

110

mV

CTRL Input Resistance

200

500

800

KΩ

CTRL Dual-Mode Threshold

Rising and Falling

100

180

240

mV

CTRL Shutdown Enable Delay

8.2

ms

FB-to-COMP Transconductance

52

µs

Oscillator

Operating Frequency

0.75

1.0

1.25

MHz

Maximum Duty Cycle

90

92

95

%

N-Channel Switch

LX On-Resistance

0.5

1

Ω

LX Current Limit

Duty Cycle=90%

0.8

1.4

2

A