derating

absolute maximum ratings

input Voltage

• 0 to 40 VDC continuous

Lead soldering temperature (10 sec per lead)

• 300°C

storage temperature range (case)

• –55°C to +135°C

isolation

• 100 megohm minimum at 500 V

• Any pin to case (except case pin)

recommended operating conditions

input Voltage range

• 0 to 40 VDC continuous

case operating temperature (tc)

• –55°C to +85°C full power

• –55°C to +125°C absolute

input Voltage

Derate linearly from 100% at 85°C case to

the 33 VDC at 125°C case

input ripple current

Derate linearly from 100% at 85°C case to

the following at 125°C case

270 mA rms FM-461

400 mA rms FMA-461

480 mA rms FMB-461

Dc input and output current

Derate linearly from 100% at 85°C case to

the following at 125°C case

750 mA FM-461

1.7 A FMA-461

1.7 A FMB-461

x2

0.1 F

0.01F

0.001F

4.7 F

150 

47 pF

1000 pF

50 

1000 pF

500 V

Positive

Input

Input

Common

Positive

Output

Output

Common

FM-461

469 H

2.4 H

Electrical Characteristics: 25°C Tc, nominal Vin, unless otherwise specified.

Note

1. Typical applications result in Vout within 2% of Vin.

FM-461

FMA-461

FMB-461

uNITS

paraMeTer

CoNDITIoNS

MIN Typ MaX MIN Typ MaX MIN Typ MaX

INpuT VoLTage

CoNTINuouS

0

28

40 0

28

40 0

28

40

VDC

INpuT CLaMpINg VoLTage

-55°C

38.9 43.2 47.5

42.3 47.0 51.7

44.9 49.9 54.8

38.9 43.2 47.5

42.3 47.0 51.7

44.9 49.9 54.8

38.9 43.2 47.5

42.3 47.0 51.7

44.9 49.9 54.8

VDC

+25°C

+125°C

INpuT CurreNT

DC

—

—

1.75

—

—

0.67

—

—

3.8

—

—

1.0

—

—

5.0

—

—

1.2

A

A rms

rIppLe

NoISe rejeCTIoN

—

40

— —

40

— —

40

—

dB

DC reSISTaNCe

STeaDy STaTe

— 0.38 0.42 0.07 0.10 0.15 0.07 0.09 0.10

Ω

CapaCITaNCe

aNy pIN To CaSe

1900 — 2200 3700 — 4400 6450 — 8000

pF

ouTpuT VoLTage1

STeaDy STaTe

VDC

ouTpuT CurreNT

STeaDy STaTe

—

—

1.75 —

—

3.8 —

—

5.0

A

power DISSIpaTIoN

MaX CurreNT

—

—

1.3 —

—

1.6 —

—

2.5

W

FM-461, FMA-461

AND FMB-461

1.75 To 5 AMP

Page 2 of 9

FM/A/B Rev C 20100212

www.interpoint.com