tp78lxx-1 series www.gztoppower.com tel:020-61038836 email:sales@gztoppower.com page 1 of 3 description tp78lxx-1 series switching regulators are ideal replacement for tp78xx linear regulators and ldos. the efficiency of up to 97% means that very little energy is wasted as heat so there is no need for any heat sinks with their additional space and mounting costs. they are widely used in industrial control, instrumentation, and electric power applications. wide input non-isolated & regulated single output output characteristics parameter conditions min typ. max. units output voltage accuracy 100% full load 2 3 % line regulation vin=min. to max, at full load 0.2 0.4 load regulation 10% to 100% load 0.4 0.6 ripple & noise 20mhz bandwidth 25 35 mvp-p short circuit input power 0.5 1.8 w short circuit protection continuous, automatic recovery thermal shutdown internal ic junction 150 switching frequency 100% full load 280 330 450 khz output current limit vin= min. to max.(at full load) vout:1.5v~3.3v 3000 ma output current limit vin= min. to max.(at full load) vout:5v~15v 2000 ma quiescent current 5 8 ma temperature coefficient ?40 ~+85 ambient 0.02 %/ max capacitance load 1000 f all specifications typical at ta=25oc, nominal input voltage and rated output current unless otherwise specified. common specifications parameter conditions min. typ. max. units storage humidity 95 operating temperature power derating (above 71oc) -40 85 operating case temp 100 storage temperature -55 125 lead temperature 1.5mm from case for 10 seconds 300 cooling free air convection case material plastic (ul94-v0) mtbf 25 mil-hdbk-217f 2000 k hours weight 3.7 g features rohs compliant wide input non-isolated regulated single output efficiency up to 97% short circuit protection, thermal shutdown temperature range: -40 oc ~ +85 oc low ripple noise sip package no heat sink required industry standard pinout selection guide part number input voltage (vdc) output efficiency % nominal range voltage vdc) current ma) vin (min) vin(max) tp78l1.5-1 12 4.75~26 1.5 1000 80 71 tp78l1.8-1 12 4.75~26 1.8 1000 83 74 tp78l2.5-1 12 4.75~28 2.5 1000 88 80 tp78l3.3-1 24 4.75~28 3.3 1000 90 83 tp78l5.0-1 24 6.5~32 5.0 1000 93 88 tp78l6.5-1 24 9.0~32 6.5 1000 94 90 tp78l9.0-1 24 12~32 9.0 1000 95 92 tp78l12-1 24 16~32 12 1000 96 94 tp78l15-1 24 20~32 15 1000 97 94 the above part number with "l" suffix are 90 ? bent pins power converters, for example tp78l1.5-1l. toppower
tp78lxx-1 series www.gztoppower.com tel:020-61038836 email:sales@gztoppower.com page 2 of 3 temperature derating graphs external capacitor table part number c1(ceramic capacitor) c2(ceramic capacitor) tp78l1.5-1 10 f/50v 22 f/6.3v tp78l1.8-1 10 f/50v 22 f/6.3v tp78l2.5-1 10 f/50v 22 f/6.3v tp78l3.3-1 10 f/50v 22 f/6.3v tp78l5.0-1 10 f/50v 22 f/16v tp78l6.5-1 10 f/50v 10 f/16v tp78l9.0-1 10 f/50v 10 f/16v tp78l12-1 10 f/50v 10 f/25v tp78l15-1 10 f/50v 10 f/25v standard application circuit note: 1. c1 and c2 are required and should be fitted close to the converter pins. 2. the capacitance of c1,c2 sees external capacitor table, it can be increased properly if required, and tantalum or low esr el ectrolytic capacitors may also suffice. 3. no parallel connection or plug and play. test configurations ta=25 1.efficiency and output voltage ripple test 2. 2.start-up and load transient response test tp78lxx-1 25.4 mm 25.4 mm 12.7 mm dc/dc converter 1 2 3 +vin gnd ceramic tantalum scope load 25.4 mm c1 c2 copper strip copper strip +vout 1uf 1uf dc/dc converter 1 2 3 +vin gnd scope load 25.4 mm c1 c2 copper strip 50.8 mm +vout copper strip toppower
tp78lxx-1 series www.gztoppower.com tel:020-61038836 email:sales@gztoppower.com page 3 of 3 mechanical dimensions pin connections sip package pin function 1 +vin 2 gnd 3 +vout recommended footprint details tube outline dimensions 0.30 12 3 yyww tp78l5.0 - 1 0.50 17.50 4.10 0.50 5.08 bottom view 9.00 11.50 yyww tp78l5.0 - 1 9.00 17.50 9.00 11.50 4.10 5.08 0.50 2 13 bottom view 19.00 0.30 unless otherwise stated all dimensions in mm 0.5mm. l=520mm 2mm packaging quantity:44pcs l=220mm 2mm packaging quantity:17pcs unless otherwise stated all dimensions in mm 0.5mm. 90 ? bent pins power converters(part number with "l" suffix) 20.2 6.2 26.2 11.2 11.6 23.6 20.6 16.2 11.2 5.2 unless otherwise stated all dimensions in mm 0.5mm. all dimensions in mm 0.25.all pins on a 2.54mm pitch. 90 ? bent pins power converters(part number with "l" suffix) 90 ? bent pins power converters (part number with "l" suffix) toppower toppower 2.54 2.54 3 hole s 1.00 1.15 toppower
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