SRAH-05B BEL | Alldatasheet
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Technical content
Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 • Tel 201-432-0463 Fax 201-432-9542 www.belfuse.com ©2006 Bel Fuse Inc. Specifications subject to change without notice. 02.06 POWER PRODUCTS NON-ISOLATED DC/DC CONVERTERS BP06xRAH-05B 5V Input / 1.2V – 3.3V Output / 5A Nonisolated Compact, low profile surface mount package Fixed frequency High efficiency means less power dissipation Excellent thermal performance Optimized for cost Remote on/off Undervoltage lockout (UVLO) Over current and short circuit protection
Description
The Bel SRAH-05B and VRAH-05B modules are a series of non-isolated, step down DC/DC power converters that operate from a nominal 5V source. These converters are available in a range of output voltages from 1.2V to 3.3V . They are packaged in a compact, overmolded package rated at 5A. Optional lead forming provides a vertical mount product for minimal footprint or a surface mount option for a very low profile. Standard features include remote on/off, over current and short circuit protection, and output voltage adjust. These products may be used almost anywhere low voltage silicon is employed and a 5V source is available. Typical applications include file servers, routers, line cards and other computing and communications equipment.
Applications
SRAH-05B / VRAH-05B Series Distributed power architectures Data networking equipment Telecommunications Computers and peripherals Part Number Selection tuptuO egatloV tupnI egatloV tuptuO.xaM tnerruC tuptuO.xaM rewoP lacipyT ycneiciffE rebmuNtraP tnuoMecafruS rebmuNtraP tnuoMlacitreV V3.3V 5A 5W 5.61% 290 33B50-HARS0 33B50-HARV V5.2V 5A 5W 5.21% 090 52B50-HARS0 52B50-HARV V8.1V 5A 5W 0.9% 680 81B50-HARS0 81B50-HARV V5.1V 5A 5W 5.7% 480 51B50-HARS0 51B50-HARV V2.1V 5A 5W 6% 280 21B50-HARS0 21B50-HARV RoHS Compliant
Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 Tel 201-432-0463 Fax 201-432-9542 www.belfuse.com ©2006 Bel Fuse Inc. Specifications subject to change without notice. 02.06 POWER PRODUCTS NON-ISOLATED DC/DC CONVERTERS BP06xRAH-05B 5V Input / 1.2V – 3.3V Output / 5A page 2 Input Specifications Absolute Maximum Ratings Note: Use beyond the maximum ratings may cause a reliability degradation of the DC/DC converter or may permanently damage the device. Note: Input capacitance one 270µF/16V, ESR = 0.018 Ω max at 100kHz @ 25° C. 1. With simulated source impedance of 500nH, 5Hz to 20MHz. retemaraP lobmyS niM lacipyT xaM tinU egatloVtupnIsuounitnoCn iV3 .0- 6V egatloVlanimreTelbanEtuptuOn etuoV3 .0- 6V erutarepmeTtneibmAb maT0 07C ° erutarepmeTegarotSr otsT0 4- 001C ° retemaraP eludoM lobmyS niM lacipyT xaM stinU egatloVtupnIgnitarepOl lAn iV5 .4 5.5V tnerruCtupnI V3.3 V5.2 V8.1 V5.1 V2.1 niI 6.4 6.3 7.2 3.2 9.1 A tnerruCtupnIdaoLoN llA 03 Am tnerruCtupnIffOetomeR 48 Am tnerruCelppiRdetcelfeRtupnI 1 llA 030 6 Am smr )P-P(tnerruCelppiRdetcelfeRtupnI 1 llA 0010 51k pAm I2 tneisnarTtnerruChsurnItl lA 20.05 0.0A 2s dlohserhTegatloVnOnruTl lA9 1.43 .45 .4V dlohserhTegatloVffOnruTl lA 9.39 4.4V
Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 Tel 201-432-0463 Fax 201-432-9542 www.belfuse.com ©2006 Bel Fuse Inc. Specifications subject to change without notice. 02.06 POWER PRODUCTS NON-ISOLATED DC/DC CONVERTERS BP06xRAH-05B 5V Input / 1.2V – 3.3V Output / 5A page 3 Output Specifications Note: All specifications are typical at nominal input, full load at 25° C unless otherwise stated. 1. Vin = 5V , Iout = full load, Ta = 25° C. 2. 0 - 20MHz, 1µF ceramic cap and 10µF aluminum cap on output. retemaraP eludoM lobmyS niM lacipyT xaM stinU tnioPteSegatloVtuptuO 1 V3.3 V5.2 V8.1 V5.1 V2.1 tuoV 432.3 54.2 467.1 74.1 671.1 3.3 5.2 8.1 5.1 2.1 663.3 55.2 638.1 35.1 422.1 V noitalugeRdaoL V3.3 V5.2 V8.1 V5.1 V2.1 0.6 0.6 0.6 0.6 0.6 Vm noitalugeReniL V3.3 V5.2 V8.1 V5.1 V2.1 0.3 0.3 0.3 0.3 0.3 Vm erutarepmeTrevOnoitalugeR V3.3 V5.2 V8.1 V5.1 V2.1 Vm noitalugeRegatloVtuptuOlatoT V3.3 V5.2 V8.1 V5.1 V2.1 Vm esioNdnaelppiRtuptuO 2 llA 050 01p -pVm esioNdnaelppiRtuptuO 2 llA 515 2s mrVm egnaRtnerruCtuptuOl lAt uoI0 5A timiLtnerruCCDtuptuOl lAm iltuoI5 .6 5.21A egruStiucriCtrohS V3.3 V5.2 V8.1 V5.1 V2.1 egrustuoI 80.0 50.0 50.0 50.0 50.0 2.0 1.0 1.0 1.0 1.0 A2s emiTnonruTl lAn oT 210 2s m nOnruTtatoohsrevOl lA 03 % ecnaticapaCtuptuOl lAt uoC0 0002F µ
Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 Tel 201-432-0463 Fax 201-432-9542 www.belfuse.com ©2006 Bel Fuse Inc. Specifications subject to change without notice. 02.06 POWER PRODUCTS NON-ISOLATED DC/DC CONVERTERS BP06xRAH-05B 5V Input / 1.2V – 3.3V Output / 5A page 4 Output Specifications Note: All specifications are typical at nominal input, full load at 25° C unless otherwise stated. 3. di/dt = 0.5A/1µS, Ta = 25° C without external load capacitance. retemaraP eludoM lobmyS niM lacipyT xaM stinU esnopseRtneisnarT 3 ∆ daoLxaMfo%001ot%05V V3.3 0215 61V m emiTgniltteSs T 520 5s µ ∆ daoLxaMfo%05ot%001V 0215 61V m emiTgniltteSs T 520 5s µ esnopseRtneisnarT 3 ∆ daoLxaMfo%001ot%05V V5.2 0010 51V m emiTgniltteSs T 520 5s µ ∆ daoLxaMfo%05ot%001V 0010 51V m emiTgniltteSs T 520 5s µ esnopseRtneisnarT 3 ∆ daoLxaMfo%001ot%05V V8.1 0010 51V m emiTgniltteSs T 520 5s µ ∆ daoLxaMfo%05ot%001V 0010 51V m emiTgniltteSs T 520 5s µ esnopseRtneisnarT 3 ∆ daoLxaMfo%001ot%05V V5.1 0010 51V m emiTgniltteSs T 520 5s µ ∆ daoLxaMfo%05ot%001V 0010 51V m emiTgniltteSs T 520 5s µ esnopseRtneisnarT 3 ∆ daoLxaMfo%001ot%05V V2.1 0010 51V m emiTgniltteSs T 520 5s µ ∆ daoLxaMfo%05ot%001V 0010 51V m emiTgniltteSs T 520 5s µ
Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 Tel 201-432-0463 Fax 201-432-9542 www.belfuse.com ©2006 Bel Fuse Inc. Specifications subject to change without notice. 02.06 POWER PRODUCTS NON-ISOLATED DC/DC CONVERTERS BP06xRAH-05B 5V Input / 1.2V – 3.3V Output / 5A page 5 Control Specifications General Specifications 1. Vin=5V , full load and Ta=25° C. 2. See graphs on pages 10-12. 3. With remote on/off pin 1 open, the module is on. retemaraP eludoM lobmyS niM lacipyT xaM stinU ycneiciffE 1 V3.3 V5.2 V8.1 V5.1 V2.1 η ycneuqerFgnihctiwS llA wsF 0620 030 43 zHk egnaRmirTegatloVtuptuO 2 llA0 9 011 % thgieWl lA 7.4 g retemaraP eludoM lobmyS niM lacipyT xaM stinU ffO/nOetomeR 3 llAn etuoV V )nOtinU(woLlangiSl lA0 1V )ffOtinU(hgiHlangiSl lA8 .2 5.5V
Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 Tel 201-432-0463 Fax 201-432-9542 www.belfuse.com ©2006 Bel Fuse Inc. Specifications subject to change without notice. 02.06 POWER PRODUCTS NON-ISOLATED DC/DC CONVERTERS BP06xRAH-05B 5V Input / 1.2V – 3.3V Output / 5A page 6 Efficiency Data Module 3.3V 92% 93% 94% 95% 96% 97% 123456 Output Current Efficiency 4.5V 5.0V 5.5V Module 2.5V 90% 91% 92% 93% 94% 95% 123456 Output Current Efficiency 4.5V 5.0V 5.5V Module 1.8V 86% 87% 88% 89% 90% 91% 92% 93% 123456 Output Current Efficiency 4.5V 5.0V 5.5V Module 1.5V 85% 86% 87% 88% 89% 90% 91% 92% 123456 Output Current Efficiency 4.5V 5.0V 5.5V Module 1.2V 81% 82% 83% 84% 85% 86% 87% 88% 123456 Output Current Efficiency 4.5V 5.0V 5.5V
Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 Tel 201-432-0463 Fax 201-432-9542 www.belfuse.com ©2006 Bel Fuse Inc. Specifications subject to change without notice. 02.06 POWER PRODUCTS NON-ISOLATED DC/DC CONVERTERS BP06xRAH-05B 5V Input / 1.2V – 3.3V Output / 5A page 7 Ripple and Noise Ripple and noise at full load and 5Vdc input, 3.3Vdc output and Ta=25° C Ripple and noise at full load and 5Vdc input, 2.5Vdc output and Ta=25° C Ripple and noise at full load and 5Vdc input, 1.8Vdc output and Ta=25° C 1µF ceramic cap and 10µF aluminum electrolytic cap added at the output. Ripple and noise at full load and 5Vdc input, 1.5Vdc output and Ta=25° C Ripple and noise at full load and 5Vdc input, 1.2Vdc output and Ta=25° C
Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 Tel 201-432-0463 Fax 201-432-9542 www.belfuse.com ©2006 Bel Fuse Inc. Specifications subject to change without notice. 02.06 POWER PRODUCTS NON-ISOLATED DC/DC CONVERTERS BP06xRAH-05B 5V Input / 1.2V – 3.3V Output / 5A page 8 Transient Response Transient response: di/dt = 0.5A/µS, no external load capacitance Vout=3.3V 50% to 100% load transients at 5V input and Ta=25° C Vout=3.3V 100% to 50% load transients at 5V input and Ta=25° C Vout=2.5V 50% to 100% load transients at 5V input and Ta=25° C Vout=2.5V 100% to 50% load transients at 5V input and Ta=25° C Vout=1.8V 50% to 100% load transients at 5V input and Ta=25° C Vout=1.8V 100% to 50% load transients at 5V input and Ta=25° C
Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 Tel 201-432-0463 Fax 201-432-9542 www.belfuse.com ©2006 Bel Fuse Inc. Specifications subject to change without notice. 02.06 POWER PRODUCTS NON-ISOLATED DC/DC CONVERTERS BP06xRAH-05B 5V Input / 1.2V – 3.3V Output / 5A page 9 Transient Response Transient response: di/dt = 0.5A/µS, no external load capacitance Vout=1.2V 50% to 100% load transients at 5V input and Ta=25° C Vout=1.5V 50% to 100% load transients at 5V input and Ta=25° C Vout=1.5V 100% to 50% load transients at 5V input and Ta=25° C Vout=1.2V 100% to 50% load transients at 5V input and Ta=25° C
Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 Tel 201-432-0463 Fax 201-432-9542 www.belfuse.com ©2006 Bel Fuse Inc. Specifications subject to change without notice. 02.06 POWER PRODUCTS NON-ISOLATED DC/DC CONVERTERS BP06xRAH-05B 5V Input / 1.2V – 3.3V Output / 5A page 10 Thermal Considerations VRAH-05B SRAH-05B
Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 Tel 201-432-0463 Fax 201-432-9542 www.belfuse.com ©2006 Bel Fuse Inc. Specifications subject to change without notice. 02.06 POWER PRODUCTS NON-ISOLATED DC/DC CONVERTERS BP06xRAH-05B 5V Input / 1.2V – 3.3V Output / 5A page 11 Output Voltage Set-Point Adjustment Vo Tr im Gnd Vo Tr im Gnd Trim Down Test Circuit Trim Up Test Circuit Output Voltage Set-Point Adjustment xRAH-05B330 Trim Resistor Calculation Rtrim down = 7.914 Vo – Vo, adj– 8.27) Kohm( Rtrim up = 2.528 Vo, adj – Vo– 5.11) Kohm( 30.01 60.01 90.01 120. 01 150. 01 180 210 240 270 Adjuste d output volt age Vo,a dj (V) Trim resistor val ue Rtrim_down(Kohm) 30.01 60.01 90.01 120. 01 150. 01 180 210 240 270 Adjus te d output volta ge Vo,a dj(V) T rim re sistor va lue ,Rtrim_ up(Kohm)
Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 Tel 201-432-0463 Fax 201-432-9542 www.belfuse.com ©2006 Bel Fuse Inc. Specifications subject to change without notice. 02.06 POWER PRODUCTS NON-ISOLATED DC/DC CONVERTERS BP06xRAH-05B 5V Input / 1.2V – 3.3V Output / 5A page 12 xRAH-05B250 Trim Resistor Calculation Rtrim down = 3.664 Vo – Vo, adj– 6.79) Kohm( Rtrim up = 1.72 Vo, adj – Vo– 4.64) Kohm( xRAH-05B180 Trim Resistor Calculation Rtrim down = 1.509 Vo – Vo, adj– 5.52) Kohm( Rtrim up = 1.2 Vo, adj – Vo– 4.02) Kohm( Output Voltage Set-Point Adjustment 30.01 60.01 90.01 120.01 150.01 180 210 240 270 Adjusted ou tput voltage Vo,adj (V) Trim resistor val ue Rtrim_down(Kohm) 30.01 60.01 90.01 120.01 150.01 180 210 240 270 Adjusted output voltage Vo,adj(V) Trim resistor value,Rtrim_up(Kohm) 30.9 60.8 90.7 120.6 150.5 180.4 210.3 240.2 270.1 300 Adjus ted output voltage Vo,adj (V) Trim resistor value Rtrim_down(Kohm) 30.9 60.8 90.7 120.6 150.5 180.4 210.3 240.2 270.1 300 Adjusted output voltage Vo,adj(V) Trim resistor value,Rtrim_up(Kohm)
Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 • Tel 201-432-0463 Fax 201-432-9542 www.belfuse.com ©2006 Bel Fuse Inc. Specifications subject to change without notice. 02.06 POWER PRODUCTS NON-ISOLATED DC/DC CONVERTERS BP06xRAH-05B 5V Input / 1.2V – 3.3V Output / 5A page 13 xRAH-05B150 Trim Resistor Calculation Rtrim down = 2.702 Vo – Vo, adj– 11.7) Kohm( Rtrim up = 3.064 Vo, adj – Vo– 7.87) Kohm( xRAH-05B120 Trim Resistor Calculation Rtrim down = 1.545 Vo – Vo, adj– 8.47) Kohm( Rtrim up = 3.064 Vo, adj – Vo– 4.64) Kohm( Output Voltage Set-Point Adjustment 30. 01 60. 01 90. 01 120.01 150.01 180 210 240 270 Adjusted output voltage Vo,adj (V) Trim resistor value Rtrim_down(Kohm) 30. 01 60. 01 90. 01 120.01 150.01 180 210 240 270 Adj u st ed o ut put vol tag e Vo ,adj (V) Trim resistor value,Rtrim_up(Kohm) 30.01 60.01 90.01 120.01 150.01 180 210 240 270 Adjusted output voltage Vo,adj (V) Trim resistor val ue Rtrim_down(Kohm) 30.01 60.01 90.01 120.01 150.01 180 210 240 270 Adjusted output voltage Vo,adj(V) Trim resistor value,Rtrim_up(Kohm)
Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 Tel 201-432-0463 Fax 201-432-9542 www.belfuse.com ©2006 Bel Fuse Inc. Specifications subject to change without notice. 02.06 POWER PRODUCTS NON-ISOLATED DC/DC CONVERTERS BP06xRAH-05B 5V Input / 1.2V – 3.3V Output / 5A Mechanical page 14 SRAH-05B 0.400 [10.16] 0.60 [15.24] 0.70 [17.78] 0.050 [1.27] 0.100 [2.54] 4x0.400 [10.16] 0.012 [0.30] 0.050 [1.27] 0.020 [0.51] 0.320 [8.13] 0.780 [19.81] 0.055 [1.40] 2x 0.090 [2.29] 2x 0.004 [0.10] 0˚-5˚ R0.015 [R0.38] typ R0.008 [R0.20] typ 0.100 [2.54] 0.855 [21.72] 0.065 [1.65] 0.110 [2.79] Suggested PCB Pad Layout Dimensions are in inches [millimeters]. Standard dimension tolerance is ±0.005 [0.13] unless otherwise noted. niP noitcnuF 1f fO/nOetomeR 2n iV+ 3d nuorG 4o V+ 5m irT 6n oitcennoCoN 7n oitcennoCoN 1 2 3 4 5
Bel Fuse Inc.
206 Van Vorst Street
Jersey City, NJ 07302 Tel 201-432-0463 Fax 201-432-9542 www.belfuse.com FAR EAST Bel Fuse Ltd. 8F / 8 Luk Hop Street San Po Kong Kowloon, Hong Kong Tel 852-2328-5515 Fax 852-2352-3706 www.belfuse.com EUROPE Bel Fuse Europe Ltd. Preston Technology Management Centre Marsh Lane, Suite G7, Preston Lancashire, PR1 8UD, U.K. Tel 44-1772-556601 Fax 44-1772-888366 www.belfuse.com ©2006 Bel Fuse Inc. Specifications subject to change without notice. 02.06 POWER PRODUCTS NON-ISOLATED DC/DC CONVERTERS BP06xRAH-05B 5V Input / 1.2V – 3.3V Output / 5A Mechanical page 15 VRAH-05B 0.700 [17.78] 0.600 [15.24] 0.050 [1.27] 0.265 [6.73] min 0.020 [0.51] 0.308 [7.82] 0.050 [1.27] 0.100 [2.54] 0.400 [10.16] Dimensions are in inches [millimeters]. Standard dimension tolerance is ±0.005 [0.13] unless otherwise noted. 2 43 51 niP noitcnuF 1f fO/nOetomeR 2n iV+ 3d nuorG 4o V+ 5m irT RoHS Compliance Complies with the European Directive 2002/95/EC, calling for the elimination of lead and other hazardous substances from electronic products. These parts are not however compatible with the higher temperatures associated with lead free solder processes and must be soldered using a reflow profile with a peak temperature of no more than 240ºC.