R-78B1.8-1.0L中文资料

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www.recom-international.com113-February-20071.0 AMP

SIP3

Single OutputINNOLINE

DC/DC-Converter

R-78Bxx-

1.0(L)

Series●Efficiency up to 97%,Non isolated, no need for heatsinks●Pin-out compatible with LM78XX Linears●Low profile( L*W*H=11.5*8.5*17.5mm)●Wide input range.(4.75V ~ 34V)●Short circuit protection, Thermal shutdown ●Non standard outputs available as specials between 1.5V ~15V●Low ripple and noise●“L” version with 90° pins●See Positive to Negative Converter Application Note for use as a voltageinverter (alternative to LM79xx Linear)Features

Selection Guide

PartInputOutputOutputEfficiency NumberRange (1)VoltageCurrentMin. VinMax. VinSIP3(V)(V)(A)(%)(%)R-78B1.5-1.0 4.75 – 261.51.07771

R-78B1.8-1.0 4.75 – 261.81.08074

R-78B2.5-1.0 4.75 – 342.51.08578

R-78B3.3-1.0 4.75 – 343.31.08983

R-78B5.0-1.0 6.5 – 345.01.09388

R-78B6.5-1.0 9.0 – 346.51.09490

R-78B9.0-1.0 12 – 349.01.09593

R-78B12-1.0 16 – 34121.09695

R-78B15-1.0 20 – 34151.09796

Output Power (%)120100

2060

100750-40

Operating Temperature (°C)080

502571Safe Operating Area

8540Derating-Graph

(Ambient Temperature)The R-78Bxx-Series high efficiency switching regulators are ideally suited to replace 78xx linear regulatorsand are pin compatible. The efficiency of up to 97% means that very little energy is wasted as heat so thereis no need for any heat sinks with their additional space and mounting costs. The L-Version with 90° pinsallows direct replacement for laid-flat regulators where component height is at a premium. Low ripple andnoise figures and a short circuit input current of typically only 10mA round off the specifications of this ver-satile converter series.Description* add Suffix “L” for 90° bent pins, e.g. R-78B5.0-1.0L

Note 1: 1.5V, 1.8V Output can be unstable with Vin>26VDC元器件交易网www.cecb2b.com

2www.recom-international.com13-February-2007CharacteristicsConditionsMin.Typ.Max.Input Voltage Range 1.5V, 1.8V4.7526.0V2.5V to 15.5V4.7534.0VOutput Voltage Range (for customized parts)All Series1.515.5VOutput Current (see Note 2)All Series01000mAOutput Current LimitAll Series2000mAShort Circuit Input CurrentAll Series1030mAInternal Power Dissipation0.65WShort Circuit ProtectionContinuous, automatic recoveryOutput Voltage Accuracy (At 100% Load)All Series±2±3%Line Voltage Regulation (Vin = min. to max. at full load)1.5V to 6.5V0.20.4%9V to 15.5V0.10.2%Load Regulation (10% to 100% full load)1.5V to 6.5V0.40.6%9V to 15.5V0.250.4%Dynamic Load Stability (with Output Capacitor=100µF) 100% <-> 50% load±100mV±150mVTransient Recovery Time1.01.5msRipple & Noise (without Output Capacitor)1.5V to 6.5V15mVp-p20mVp-p(10% to 100% full load)9V to 15.5V25mVp-p35mVp-pTemperature Coefficient-40°C ~ +85°C ambient0.015%/°CMax capacitance Load220µFSwitching Frequency280330380kHzQuiescent CurrentVin = min. to max. at 0% load57mAInput Reflected Ripple CurrentAll Series150200mAp-pOperating Temperature Range-40°C+85°COperating Case Temperature+100°CStorage Temperature Range-55°C+125°CCase Thermal Impendance60°C / WThermal ShutdownInternal IC junction+160°CRelative Humidity95% RHMTBF (+25°C)using MIL-HDBK 217F6584 x 10³ hours. (+71°C)using MIL-HDBK 217F1139 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

-VinC1

22µF(Vin>30V)100µF(Option)C2

To protect the converter during power-up, use C1=22µF if Vin>30V}Detailed Information see Application Notes chapter "MTBF"

Add a blocking diode toVout if current can flowbackwards into the out-put, as this can damagethe converter..元器件交易网www.cecb2b.com

www.recom-international.com313-February-2007INNOLINE

DC/DC-Converter

Characteristics

Efficiency (%)50

Efficiency Vs Vin (Full Load)Vo=1.8VVo=2.5VVo=5VVo=3.3V

25

Vin ( V )10203475100

Vo=1.5VVo=12VVo=15VVo=9VVo=6.5VEfficiency

Efficiency (%)100

0.2

Efficiency Vs Load ( Vin=Max )Vo=1.5VVo=3.3VVo=5VVo=2.5V

50

Output Current ( A )0.40.60.81.01.275

25Vo=1.8VVo=15VVo=12VVo=6.5VVo=9V

Efficiency (%)100

0.2

Efficiency Vs Load ( Vin=Min )Vo=1.5VVo=3.3VVo=5VVo=2.5V

50

Output Current ( A )0.40.60.81.01.275

25Vo=1.8VVo=15VVo=12VVo=9V, 6,5VRipple (mV)50

Ripple Vs Vin ( Full Load )Vo=1.5V,1.8VVo=2.5VVo=5VVo=3.3V25

Vin ( V )102034Vo=9V,12VVo=15VVo=6.5VRipple

Ripple (mV)50

0.2

Ripple Vs Load ( Vin=Max )Vo=1.5V, 1.8VVo=2.5VVo=5VVo=3.3V25

Output Current ( A )0.40.60.81.01.2Vo=9V, 12VVo=15VVo=6.5V

Ripple (mV)50

0.2

Ripple Vs Load ( Vin=Min )Vo=1.5V,1.8VVo=2.5V,3.3V,5VVo=9V,12V,15V25

Output Current ( A )0.40.60.81.01.2Vo=6.5VR-78Bxx-1.0