For assistance or to order, call Application Notes Mechanical Outline Product Selector Guide (800) 531-5782 PT5020 Series POSITIVE INPUT/NEGATIVE OUTPUT INTEGRATED SWITCHING REGULATOR • Input Voltage Range: 4.75 to 7 Volts • Complete Solution With Only One External Capacitor Required • Soft Start Pin-Out Information Pin Standard Application 1 Vin 2 GND Vout 3 1 VIN (+) PT5020 3 Function VOUT (-) Pkg Style 100 2 C2 C3 COM COM C2 = Optional ceramic (1-5µF) C3 = Required Electrolytic (100µF) Revised 5/15/98 The Power Trends’ PT5020 ISRs convert a positive input voltage (typ +5V) to a negative output voltage for a wide range of analog and communication circuit applications. The Plus to Minus ISRs use a “BuckBoost” topology and are packaged in the 3 pin SIP configuration. Ordering Information PT Series Suffix (PT12345X) PT5021 o = -3.3 Volts PT5022 o = -5 Volts PT5023 o = -9 Volts PT5024 o = -12 Volts PT5025 o = -15 Volts PT5026 o = -5.2 Volts PT5027 o = -8.0 Volts PT5028 o = -6.5 Volts PT5029 o = -5.5 Volts PT5030 o = -6.0 Volts Case/Pin Configuration Vertical Through-Hole Horizontal Through-Hole Horizontal Surface Mount NOTE: Buck-Boost Topology ISRs are not Short-Circuit Protected. Specifications PT5020 SERIES Characteristics (Ta=25°C unless noted) Symbols Conditions Min Typ Max Units Output Current Io Over Vin range Vo=-3.3V to 6.5V Vo=-9V Vo=-12V Vo=-15V 0.25* 0.10* 0.10* 0.10* — — — — 1.0 0.60 0.50 0.30 A A A A Current Limit Icl Vin = 5V — 1.5 Io max — A Inrush Current Iir tir Vin = +5V @ max Io On start up — — 1.0 1.0 — — A mSec Short Circuit Current Isc Vin = 5V — 2 Io max — A Input Voltage Range Vin Io = 0.1 to Io max 4.75 — 7** V Output Voltage Tolerance ∆Vo Over Vin Range Io= Imax Ta = -20°C to shutdown — ±1.5 ±3 %Vo Line Regulation Regline Over Vin range — ±0.5 ±1 %Vo Load Regulation Regload Imin ≤ Io ≤ Imax — ±0.5 ±1 %Vo Vo Ripple/Noise Vn Vin=5V, Io= Imax — ±2 ±5 %Vo Transient Response ttr 25% load change Vo over/undershoot — — 500 3.0 — 5.0 µSec %Vo Efficiency η Vin=5V, Io=0.5 Imax Switching Frequency ƒO Over Io range Absolute Maximum Operating Temperature Range Ta Recommended Operating Temperature Range — 75 — % 0.8 500 1 650 1.2 800 MHz kHz — -20 — +85 °C Ta Free Air Convection, (40-60 LFM) Over Vin and Io range -20 — +65*** °C Thermal Resistance θja Free Air Convection (40-60LFM) — 50 — °C/W Storage Temperature Ts -40 — +125 °C — 500 — G’s Vo=3.3 to 8V Vo ≥ 8 V Mechanical Shock Per Mil-STD-883D, Method 2002.3 1 msec, Half Sine, mounted to a fixture Mechanical Vibration Per Mil-STD-883D, Method 2007.2, 20-2000 Hz, Soldered in a PC board Weight — 5 — G’s — 4.5 — grams * ISR will operate down to no load with reduced specifications. ** For applications with input voltages greater than 7 VDC, use the PT78NR100 Series. *** See SOA Curves. 42 N A C Power Trends, Inc. 27715 Diehl Road, Warrenville, IL 60555 (800) 531-5782 Fax: (630) 393-6902 http://www.powertrends.com CHARACTERISTIC (800) 531-5782 PT5020 Series DATA Efficiency vs Output Current Efficiency vs Output Current 100 100 90 90 V in 7.0V 6.5V 6.0V 5.5V 5.0V 4 .75V 80 70 60 Efficiency - % Efficiency - % (See Note 1) V in 80 7 .0V 6 .5V 6 .0V 5 .5V 5 .0V 4 .75 V 70 60 50 50 40 40 0 0 .1 0 .2 0 .3 0 .4 0 .5 0 0 .2 Iout-(Amps) 0 .4 0 .6 0 .8 1 Iout-(Amps) Ripple Voltage vs Output Current Ripple Voltage vs Output Current 100 16 0 14 0 Vin 4 .75 V 5 .0V 5 .5V 6 .0V 6 .5V 7 .0V 10 0 80 60 Ripple-(mV) Ripple-(mV) 80 12 0 40 V in 4 .7 5 V 5 .0 V 5 .5 V 6 .0 V 6 .5 V 7 .0 V 60 40 20 20 0 0 0 0.1 0.2 0.3 0.4 0 0.5 0 .2 Iout-(Amps) Power Dissipation vs Output Current 0 .6 0 .8 1 Power Dissipation vs Output Current 2 2.5 1.5 2 V in 4 .7 5 V 5 .0 V 5 .5 V 6 .0 V 6 .5 V 7 .0 V 1 PD-(Watts) PD-(Watts) 0 .4 Iout-(Amps) Vin 4.75V 5.0V 5.5V 6.0V 6.5V 7.0V 1.5 1 0.5 0.5 0 0 0 0.1 0.2 0.3 0.4 0.5 0 0.2 Iout-(Amps) Safe Operating Area (VIN=5V) 0.6 0.8 1 Safe Operating Area (VIN=5V) 90 90 80 80 70 60 Airflow 50 9 0 L FM 6 0 L FM 40 0 L FM 30 Ambient Temperature - (C°) Ambient Temperature - (C°) 0.4 Iout-(Amps) 70 Airflow 60 0 LFM 50 60 LFM 40 90 LFM 30 20 20 0 .0 0 .1 0 .2 0 .3 Maximum Output Ciurrent - (Amps) 0 .4 0 .5 0 0.2 0.4 0.6 0.8 1 Maximum Output Ciurrent - (Amps) Note 1: All data listed in the above graphs has been developed from actual products tested at 25°C. This data is considered typical data for the ISR. Power Trends, Inc. 27715 Diehl Road, Warrenville, IL 60555 (800) 531-5782 Fax: (630) 393-6902 http:// www.powertrends.com 43 DATA SHEETS PT5022 (-5VDC) (See Note 1) 5V5V to Bus 3.x Converters Products PT5024 (-12VDC) For assistance or to order, call IMPORTANT NOTICE Texas Instruments and its subsidiaries (TI) reserve the right to make changes to their products or to discontinue any product or service without notice, and advise customers to obtain the latest version of relevant information to verify, before placing orders, that information being relied on is current and complete. All products are sold subject to the terms and conditions of sale supplied at the time of order acknowledgement, including those pertaining to warranty, patent infringement, and limitation of liability. TI warrants performance of its semiconductor products to the specifications applicable at the time of sale in accordance with TI’s standard warranty. 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