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D2576

DMS2576 Series 3A Step-Down Voltage Regulator

Unspecified 

D2576

47/42

kHz (Min)

58/63

kHz (Max)

VSAT

Saturation Voltage

IOUT = ЗА (Note 4)

1.4 1.8/2.0

V V(Max)

DC

Max Duty Cycle (ON)

(Note 5)

98

93

%

%(Min)

A

ICL

Current Limit

(Notes 4 and 11)

5.8 4.2/3.5

A(Min)

6.9/7.5

A(Max)

(Notes 6 and 7) Output = 0V

2

mA(Max)

IL

Output Leakage Current

Output = –1V

7.5

mA

Output = –1V

30

mA(Max)

IQ

Quiescent Current

(Note 6)

mA

5

10

mA(Max)

ISTBY

Standby Quiescent

Current

ON/OFF Pin = 5V (OFF)

50

200

µA

µA(Max)

ON/OFF CONTROL

ON/OFF Pin

VIH

Logic Input Level

VOUT = 0V

1.4 2.2/2.4

V(Min)

VOUT = Nominal Output

V(Max)

VIL

1.2 1.0/0.8

Volt-age

µA

IIH

ON/OFF Pin = 5V (OFF)

12

30

µA(Max)

ON/OFF Pin Input Current

µA

IIL

ON/OFF Pin = 0V (ON)

0

10

0µA(Max)

Note 1: Absolute Maximum Ratings indicate limits beyond which damage to the device may occur.

Operating Ratings indicate conditions for which the device is intended to be functional, but do

not guarantee specific performance limits. For guaranteed specifications and test conditions, see

the Electrical Characteristics.

Note 2: All limits guaranteed at room temperature (standard type face) and at temperature extremes

(bold type face). All room temperature limits are 100% production tested. All limits at temperature

extremes are guaranteed via correlation using standard Statistical Quality Control (SQC)

methods.

Note 3: External components such as the catch diode, inductor, input and output capacitors can affect

switching regu-lator system performance. When the DMS2576 is used as shown in the Figure 2

test circuit, system performance will be as shown in system parameters section of Electrical

Characteristics.

Note 4: Output pin sourcing current. No diode, inductor or capacitor connected to output.

Note 5: Feedback pin removed from output and connected to 0V.

Note 6: Feedback pin removed from output and connected to a12V for the Adjustable, 3.3V, and 5V

versions, and a 25V for the 12V and 15V versions, to force the output transistor OFF.

Note 7: VIN = 40V.

Note 8: Junction to ambient thermal resistance (no external heat sink) for the 5 lead TO-220 package

mounted vertically, with % inch leads in a socket, or on a PC board with minimum copper area.

REV：A3_W

2012-1-1

6

Power Mos Microelectronic Limited

www.dms-mic.com

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