www.micropowerdirect.com

MicroPower Direct

292 Page Street

Suite D

Stoughton, MA 02072

USA

T: (781) 344-8226

F: (781) 344-8481

E: sales@micropowerdirect.com

W: www.micropowerdirect.com

Key Features:

LSR7810

Low Cost, Miniature

1.0A Surface Mount

POL Switching Regulators

Output

Parameter

Conditions

Min.

Typ.

Max.

Units

Output Voltage Accuracy

±2.0

±3.0

%

Output Voltage Adjustment Range

Contact Factory For Information

Line Regulation

±0.2

±0.5

%

Load Regulation

±0.4

±1.0

%

Ripple & Noise (20 MHz)

20

35

mV P - P

See Output Filter Circuit (Page 2)

10

15

Thermal Shutdown

See Note 1

150

°C

Temperature Coefficient

0.02

%/°C

Maximum Capacitive Load

1,000

µF

Output Current Limit

1.8

A

Output Short Circuit

Hiccup Mode, Continuous (Autorecovery)

General

Parameter

Conditions

Min.

Typ.

Max.

Units

Isolation Voltage

Not Isolated

Switching Frequency

1.40

MHz

Remote On/Off

Parameter

Conditions

Min.

Typ.

Max.

Units

Supply On

See Note 2

1.2

6.0

VDC

Supply Off

0.6

VDC

ON/OFF Control Current

100

200

µA

Standby Input Current

120

200

µA

Environmental

Parameter

Conditions

Min.

Typ.

Max.

Units

Operating Temperature Range

Ambient

-40

+25

+85

°C

Operating Temperature Range

Case

+100

°C

Storage Temperature Range

-55

+125

°C

Lead Temperature

1.5 mm From Case For 10 Sec

260

°C

Derating

Over 71°C, derate output power 2.85%/°C to 60% at 85°C

Cooling

Free Air Convection

Humidity

RH, Non-condensing

95

%

Physical

Case Size

See Mechanical Diagram (Page 2)

Case Material

Non-Conductive Black Plastic (UL-94V0)

Weight

0.08 Oz (2.3g)

Reliability Specifications

Parameter

Conditions

Min.

Typ.

Max.

Units

MTBF

MIL HDBK 217F, 25°C, Gnd Benign

1.0

MHours

Series

Electrical Specifications

Specifications typical @ +25°C, nominal input voltage & rated output current, unless otherwise noted. Specifications subject to change without notice.

Characteristic Curves