UCH-1.8/40-D48 UCH-2.5/40-D48 UCH-3.3/10-D24 UCH-3.3/10-D48 UCH-3.3/15-D48 UCH-3.3/35-D24 UCH-3.3/30-D48

Input

Input voltage range

See ordering guide

Start-up threshold, Volts

34

34

16

34

34

16

34

Undervoltage

shutdown, V

32

31

15

31

31

15

31

Overvoltage shutdown

none

Reflected (back) ripple cur-

rent, mA pk-pk

10

20

10

15

15

15

10

Input Current

Full load conditions

See ordering guide.

0.05

Output short circuit, mA

50

No load, mA

50

100

2.30

1.54

2.06

1.03

1.54

7.21

3.09

Standby mode, mA

(Off, UV, OT shutdown)

210

8

Internal input filter type

Pi

L-C

External recommended fuse,

Amps

10

3

5

3

3

12.5

7.5

Reverse polarity

protection

See notes.

Remote On/Off Control

Positive logic

(P model suffix)

OFF = Ground pin to +1V max.

ON = Open or +3.5 to +13.5V max

Negative logic

(N model suffix)

OFF = Open or +2.5V to +15V max.

ON = –0.1V to +0.8V max

Current, mA

1

Output

Voltage output range

See ordering guide.

Voltage output accuracy

Adjustment range

Temperature coefficient

over oper. temp. range

Minimum loading

No minimum loading.

Remote sense

compensation

+10%.

Ripple/noise

(20 MHz bandwidth)

See ordering guide.

Line/Load regulation

See ordering guide.

Efficiency

See ordering guide.

Maximum capacitive loading,

Low ESR <0.02Ω max.,

resistive load, μF

10,000 max.

Performance Specifications and Ordering Guide

➀

17

MDC_UCH Models.A15 Page 4 of 18

Single Output UCH Models

Isolated, “Half-Brick”

1.8−15V Output DC/DC Converters

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