LSN2-T/30-D12 Series

DOSA-SIP, 30A POL DC/DC Converters

www.murata-ps.com

MDC_LSN2-T/30-D12 Series.B15 Page 3 of 17

Configuration

Positive-true open drain FET with internal

10 Kilohm pullup to +5 Vdc

Operation

TRUE (power is okay) = High, approx. 5Vdc

FALSE (power is not ready) = Low, < 1V typ.,

while DC/DC is powered

External sink current

4.5 mA max. (< 1mA is recommended

to retain Vpg < 1V)

FALSE conditions (OR’d)

Soft start is active, Tracking is active, output

is greater than ±10% out of regulation,

overcurrent, or overtemperature

Dynamic Characteristics

Dynamic Load Response

60µsec to within ±2% of final value

(50-100-50% step, di/dt = 20A/msec)

Start-Up Time

Switching Frequency

520 ±50kHz

Environmental

4, 018, 248 Hours

Operating Temperature Range

–40 to +85°C with derating

See Derating Curves

Operating PC Board Temperature

Storage Temperature Range

–55 to +125°C

Thermal Protection/Shutdown

+115°C

Relative Humidity

To 85°C/85% RH, non-condensing

Physical

Outline Dimensions

See Mechanical Specifications

Weight

0.28 ounces (7.8 grams)

Electromagnetic Interference

Designed to meet FCC part 15, class B,

EN55022 (conducted and radiated)

(may need external filter)

Safety

Designed to meet UL/cUL 60950-1,

CSA-C22.2 No.60950-1, IEC/EN 60950-1

Input

Input Voltage Range

See Ordering Guide

Isolation

Not isolated. Input and output

Commons are internally connected.

Start-Up Voltage

5.5 Volts

Undervoltage Shutdown

5.2 Volts

Overvoltage Shutdown

None

20mAp-p

Internal Input Filter Type

Capacitive

Reverse Polarity Protection

See fuse information

Input Current:

Full Load Conditions

See Ordering Guide

Inrush Transient

Shutdown Mode (Off, UV, OT)

5mA

Output Short Circuit

60mA

200mA

18.8 Amps

Negative Logic (No suffix)

ON = 0 to +0.5V max.

OFF = +2V min. to +14V max.

Current

1 mA max.

Output

Voltage Output Range

See Ordering Guide

Minimum Loading

No minimum load

Accuracy (50% load)

±1.5% of Vnominal

See Ordering Guide

Overvoltage Protection

None

Temperature Coefficient

Ripple/Noise (20 MHz bandwidth)

Efficiency

See Ordering Guide

Cap-ESR = 0.001 to 0.01

W

5,000µF

Cap-ESR > 0.01

W

10,000µF

Current Limit Inception

48 Amps (cold startup)

42 Amps (after warm up)

Short Circuit Current Output

600mA

Hiccup autorecovery on overload removal

Short Circuit Duration

Continuous, no damage

(output shorted to ground)

Converter will start up if the external

Sequencing

Slew Rate

2V max. per millisecond

Startup delay until sequence start

10 milliseconds

Tracking accuracy, rising input

Vout= ±200mV of Sequence In

Tracking accuracy, falling input

ABSOLUTE MAXIMUM RATINGS

Input Voltage (Continuous or transient)

+15 Volts

On/Off Control

Input Reverse Polarity Protection

See Fuse section

Current-limited. Devices can withstand

sustained short circuit without damage.

Storage Temperature

–55 to +125°C

Lead Temperature

See soldering guidelines

These are stress ratings. Exposure of devices to greater than any of these conditions may

adversely affect long-term reliability. Proper operation under conditions other than those listed in

the Performance/Functional Specifications Table is not implied.