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78SR105HC Datasheet(PDF) 1 Page - Texas Instruments |
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78SR105HC Datasheet(HTML) 1 Page - Texas Instruments |
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1 / 3 page  For assistance or to order, call (800) 531-5782 Power Trends, Inc. 27715 Diehl Road, Warrenville, IL 60555 (800) 531-5782 Fax: (630) 393-6902 http://www.powertrends.com 2 Revised 6/30/98 Standard Application C1 = Optional 1µF ceramic C2 = Optional 1µF ceramic Pin-Out Information Pin Function 1Vin 2 GND 3Vout Ordering Information 78SR1 C XX Y 05 = 5.0 Volts 53 = 5.25 Volts 06 = 6.0 Volts 74 = 7.15 Volts 08 = 8.0 Volts 09 = 9.0 Volts 10 = 10.0 Volts 12 = 12.0 Volts 14 = 13.9 Volts 15 = 15.0 Volts Package Suffix V = Vertical Mount S = Surface Mount H = Horizontal Mount 1.5 AMP POSITIVE STEP-DOWN INTEGRATED SWITCHING REGULATOR • Very Small Footprint • High Efficiency > 85% • Self-Contained Inductor • Internal Short-Circuit Protection • Over-Temperature Protection • Wide Input Range The 78SR100 is a series of wide input voltage, 3-terminal Integrated Switching Regulators (ISRs). These ISRs have a maxi- mum output current of 1.5A and an output voltage that is laser trimmed to a variety of industry standard voltages. These 78 series regulators have excellent line and load regulation with internal short- circuit and over-temperature protection, are very flexible, and may be used in a wide variety of applications. 78SR100 Series Output Voltage Specifications Characteristics 78SR100 SERIES (T a = 25°C unless noted) Symbols Conditions Min Typ Max Units Output Current Io Over Vin range 0.1* — 1.5 A Short Circuit Current Isc Vin = Vin min — 3.5 — Apk Input Voltage Range Vin 0.1 ≤ I o ≤ 1.5A Vo= 5V 7 — 30 V Vo= 12V 14.5 — 30 V Output Voltage Tolerance ∆V o Over Vin range, Io=1.5A — ±1.0 ±2.0 %Vo Ta = 0°C to +60°C Line Regulation Regline Over Vin range — ±0.2 ±0.4 %Vo Load Regulation Regload 0.1 ≤ I o ≤ 1.5A — ±0.1 ±0.2 %Vo Vo Ripple/Noise Vn Vin= 9V, Io= 1.5A Vo= 5V — 50 — mVpp Vin= 16V, Io= 1.5A Vo= 12V 80 mVpp Transient Response ttr 50% load change — 100 — µSec Vo over/undershoot — 30 — %Vo Efficiency η Vin= 10V, Io= 1A Vo= 5V — 85 — % Vin= 17V, Io= 1A Vo= 12V — 90 — % Switching Frequency ƒo Over Vin range, Io=1.5A 600 650 700 kHz Absolute Maximum Ta — -40 — +85 °C Operating Temperature Range Recommended Operating Ta Free Air Convection, (40-60LFM) Temperature Range At Vin= 24V, Io=1.0A -40 — +80** °C Thermal Resistance θ ja Free Air Convection, (40-60LFM) — 45 — °C/W Storage Temperature Ts — -40 — +125 °C Mechanical Shock — Per Mil-STD-883D, Method 2002.3 — 500 — G’s Mechanical Vibration — Per Mil-STD-883D, Method 2007.2, —5 — G’s 20-2000 Hz, soldered in a PC board Weight — — — 6.5 — grams *ISR will operate down to no load with reduced specifications. **See Thermal Derating chart. 78SR100 Vout GND GND Vin C1 1 2 3 C2 Pkg Style 500 |
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