Rev.06.25.07

SMT20C

2 of 4

Embedded Power for

Business-Critical Continuity

All specifications are typical at nominal input Vin=12V, full load at 25

Specifications

OUTPUT SPECIFICATIONS

Voltage adjustability

5 V input models

0.9-3.3 Vdc

(See Note 5)

12 V input models

0.9-5.0 Vdc

Output setpoint accuracy With 1.0% trim resistors

±2.5%

Line regulation

Low line to high line

±0.2% max.

Load regulation

±1.3% max.

Min/max load

0 A/20 A

Overshoot

5 V input models

3.0% max.

(at turn on)

12 V input models

1.0% max.

Ripple and noise

(See Note 1)

See Table on page 2

5 Hz to 20 MHz

Transient response

100 mV max. deviation

(See Note 2)

200 μs recovery to

within regulation band

INPUT SPECIFICATIONS

Input voltage range

5 V input model

4.5-5.5 Vdc

12 V input model

10.2-13.8 Vdc

Input current

Minimum load

65 mA

Remote OFF

20 mA

Input current (max.)

5 V input model

15 A @ lo max.

(See Note 3)

12 V input model

11 A @ lo max.

Input reflected ripple

(See Note 4)

200 mA (pk-pk)

Remote ON/OFF

Logic compatibility

Positive Logic

ON

>2.4 Vdc

OFF

<0.8 Vdc

Start-up time

Power up

<20 ms

(See Note 8)

Remote ON/OFF

<20 ms

INPUT SPECIFICATIONS (CONTD.)

Turn ON threshold

5 Vin

4.5 Vdc typ.

12 Vin

9.3 Vdc typ.

Turn OFF threshold

5 Vin

4.3 Vdc typ.

12 Vin

7.8 Vdc typ.

GENERAL SPECIFICATIONS

Efficiency

See Table on page 2

Switching frequency

Fixed

275 kHz typ.

Approvals and

(See Note 7)

TÜV Product Services

standards

IEC60950, UL/cUL60950

Material flammability

UL94V-0

Weight

14.2 g (0.5 oz)

Coplanarity

150 μm

MTBF

Telcordia SR-332

7,963,574 hours

ENVIRONMENTAL SPECIFICATIONS

Thermal performance

Operating ambient,

0 °C to +80 °C

(See Note 9)

temperature

Non-operating

-40 °C to +125 °C

PROTECTION

Short-circuit protection

Hiccup, non-latching

RECOMMENDED SYSTEM CAPACITANCE

Input capacitance

(See Note 10)

270 μF/20 mW ESR max.

Output capacitance

(See Note 10)

680 μF/10 mW ESR max.