TP78L1.5 TOPPOWER | Alldatasheet
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Technical content
TP78Lxx-1.5 Series www.gztoppower.com TEL:020-61038836 EMAIL:sales@gztoppower.com page 1 of 3 DESCRIPTION： TP78LXX-1.5 series switching regulators are ideal replacement for TP78xx linear regulators and LDOs. The efficiency of up to 95% 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, input voltage range ±2 ±3 % Line regulation Vin=min. to max, at full load ±0.5 ±0.75 Load regulation 10% to 100% load ±0.5 ±1.0 Ripple & Noise 20MHz bandwidth 20 45 mvp-p Short circuit input power 0.5 1.8 W Short circuit protection Continuous, automatic recovery Thermal shutdown Internal IC junction 150 ℃ Output current limit 5000 mA Switching frequency Full load, input voltage range 300 340 380 KHz Quiescent current 5 10 mA Temperature coefficient –40 ~+85℃℃ ambient ±0.02 %/℃ Max capacitance load 1000 μF 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 95% Short circuit protection, Thermal shutdown Temperature range: -40ºC ~ +85ºC 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 12 4.75~18 1.5 1500 83 78 TP78L1.8 12 4.75~18 1.8 1500 85 81 TP78L2.5 12 4.75~18 2.5 1500 88 85 TP78L3.3 12 4.75~18 3.3 1500 91 88 TP78L5.0 12 6.5-18 5.0 1500 93 91 TP78L6.5 12 8-18 6.5 1500 95 93 The above part number with "L" Suffix are 90˚ bent pins power converters, for example TP78L1.5-1.5L.
TP78Lxx-1.5 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) TP78L1.5-1.5 10μF/25V 22 μF/6.3V TP78L1.8-1.5 10μF/25V 22 μF/6.3V TP78L2.5-1.5 10μF/25V 22 μF/6.3V TP78L3.3-1.5 10μF/25V 22 μF/6.3V TP78L5.0-1.5 10μF/25V 22 μF/16V TP78L6.5-1.5 10μF/25V 22 μF/16V 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 electrolytic 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 25.4 mm 25.4 mm 12.7 mm DC/DC Converter1 3+Vin GND Ceramic Tantalum Scope Load25.4 mmC1 C2 Copper strip Copper strip +Vout 1uF 1uF DC/DC Converter1 3+Vin GND Scope Load25.4 mmC1 C2 Copper strip 50.8 mm +Vout Copper strip TP78LXX-1.5
TP78Lxx-1.5 Series www.gztoppower.com TEL:020-61038836 EMAIL:sales@gztoppower.com page 3 of 3 MECHANICAL DIMENSIONS PIN CONNECTIONS Pin Function 1 +Vin
2 GND
RECOMMENDED FOOTPRINT DETAILS TUBE OUTLINE DIMENSIONS 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 HOLES1.00 1.15 0.30 19.00 bottom view 312 0.50 5.08 4.10 11.50 9.00 17.50 9.00 TP78L5.0-1.5 YYWW 11.50 9.00 bottom view 5.08 0.50 4.10 17.50 0.50 TP78L5.0-1.5 YYWW 321 0.30