2

www.recom-international.com

13-February-2007

Characteristics

Conditions

Min.

Typ.

Max.

Input Voltage Range

1.5V, 1.8V

4.75

26.0V

2.5V to 15.5V

4.75

34.0V

Output Voltage Range (for customized parts)

All Series

1.5

15.5V

Output Current (see Note 2)

All Series

0

1000mA

Output Current Limit

All Series

2000mA

Short Circuit Input Current

All Series

10

30mA

Internal Power Dissipation

0.65W

Short Circuit Protection

Continuous, automatic recovery

Output Voltage Accuracy (At 100% Load)

All Series

±2

±3%

Line Voltage Regulation (Vin = min. to max. at full load)

1.5V to 6.5V

0.2

0.4%

9V to 15.5V

0.1

0.2%

Load Regulation (10% to 100% full load)

1.5V to 6.5V

0.4

0.6%

9V to 15.5V

0.25

0.4%

Dynamic Load Stability (with Output Capacitor=100µF)

100% <-> 50% load

±100mV

±150mV

Transient Recovery Time

1.0

1.5ms

Ripple & Noise (without Output Capacitor)

1.5V to 6.5V

15mVp-p

20mVp-p

(10% to 100% full load)

9V to 15.5V

25mVp-p

35mVp-p

Temperature Coefficient

-40°C ~ +85°C ambient

0.015%/°C

Max capacitance Load

220µF

Switching Frequency

280

330

380kHz

Quiescent Current

Vin = min. to max. at 0% load

5

7mA

Input Reflected Ripple Current

All Series

150

200mAp-p

Operating Temperature Range

-40°C

+85°C

Operating Case Temperature

+100°C

Storage Temperature Range

-55°C

+125°C

Case Thermal Impendance

60°C / W

Thermal Shutdown

Internal IC junction

+160°C

Relative Humidity

95% RH

MTBF (+25°C)

using MIL-HDBK 217F

6584 x 10³ hours

.

(+71°C)

using MIL-HDBK 217F

1139 x 10³ hours

Note 2: Converter requires a minimum load of 6mA to start up properly. Once started, the load can be reduced to 0%.

R-78Bxx-1.0

(L) Series

Specifications (refer to the standard application circuit, Ta: 25°C, minimum load = 10%)

INNOLINE

DC/DC-Converter

Standard Application Circuit

R-78Bxx-1.0

-Vout

+Vout

+Vin

-Vin

C1

22µF

(Vin>30V)

100µF

(Option)

C2

To protect the converter during power-up, use C1=22µF if Vin>30V

Application Notes chapter "MTBF"

Add a blocking diode to

Vout if current can flow

backwards into the out-

put, as this can damage

the converter..