PT5040 Series 1-A Positive Step-up Integrated Switching Regulator SLTS026B (Revised 12/19/2001) Standard Application +Vin 1 PT5040 2 C1 +Vout 3 C2 C3 100µF COM Features Description • Wide Input Voltage Range • 85% Efficiency • Internal Over-Temperature Protection • Laser-trimmed Output Voltage • Soft Start • 5-Pin Mount Option (Suffixes L & M) The PT5040 is a series of 3-pin boost-voltage Integrated Switching Regulators (ISRs). These ISRs are designed for use with +5V bus systems that require an additional regulated +8V to +20V with up to 1A of output current. These ISRs are packaged in the 3-pin, single in-line pin (SIP) package configuration. Pin-Out Information Ordering Information PT Series Suffix (PT1234x ) Pin PT5041o = +12 Volts PT5042o = +15 Volts PT5044o = +8 Volts PT5045o = +9 Volts PT5046o = +10 Volts PT5047o = +18 Volts PT5048o = +12.6 Volts PT5049o = +20 Volts Case/Pin Configuration Function 1 Vin 2 GND 3 Vout + COM Package Code * N A C M L (EAD) (EAA) (EAC) (EAM) (EAL) Vertical Horizontal SMD Horizontal, 2-pin Tab SMD, 2-Pin Tab * Previously known as package styles 100/110. (Reference the applicable package code drawing for the dimensions and PC board layout) C 1 = Optional ceramic (1-5µF) C 2 = Optional ceramic (1-5µF) C 3 = Required Electrolytic (100µF) Specifications Order Suffix NOTE: Boost Topology ISRs are not Short-Circuit Protected. (Unless otherwise stated, T a =25°C, Vin =5V, I o =Iomax, C3 =100µF) PT5040 SERIES Characteristics Symbol Conditions Output Current Io Over Vin range Min PT5049 PT5047 PT5041/48 PT5042 PT5044 PT5045/46 Typ Max Units 0.1 (1) 0.1 (1) 0.1 (1) 0.1 (1) 0.1 (1) 0.1 (1) — — — — — — 0.5 0.6 1.0 0.75 1.5 1.2 A 4.75 4.75 — — (Vo–1) 14 V Input Voltage Range Vin Over Io range Output Voltage Tolerance ∆Vo Over Vin Range Ta= -20°C to SOA derating limit (3) — ±1.5 ±3.0 %Vo Line Regulation Regline Over Vin range — ±0.5 ±1.0 %Vo Load Regulation Regload Iomin ≤ Io ≤ Iomax — ±0.5 ±1.0 %Vo Efficiency η Io=0.5A — 85 — % Vo Ripple (pk-pk) Vr 20MHz bandwidth — ±2 ±5 %Vo Transient Response ttr Vos 25% load change Vo over/undershoot — — 500 3.0 — 5.0 µSec %Vo Current Limit Inrush Current Ilim Iir tir On start up — — — 150 (2) 5.5 (3) 1 — — — %Iomax A mSec Switching Frequency ƒs Over Vin and Io ranges 500 650 650 800 800 950 Operating Temperature Range Ta — -20 — +85 Thermal Resistance θja Free Air Convection (40-60LFM) — 40 — °C/W Storage Temperature Ts -40 — +125 °C PT5047/5049 Vo<15V Vo>15V kHz (4) °C Mechanical Shock Per Mil-STD-883D, Method 2002.3 1 msec, Half Sine, mounted to a fixture 500 — G’s Mechanical Vibration Per Mil-STD-883D, 20-2000 Hz Suffixes N, A, & C Suffixes L & M — — 5 20 (5) — — G’s Weight Suffixes N, A, & C Suffixes L & M — — 4.5 6.5 — — grams Notes: (1) (2) (3) (4) (5) — The ISR will operate at no load with reduced specifications. Boost topology ISRs are not short circuit protected. The inrush current stated is above the normal input current for the associated output load. See Safe Operating Area curves or consult the factory for the appropriate derating The tab pins on the 5-pin mount package types (suffixes L & M) must be soldered. For more information see the applicable package outline drawing. For technical support and more information, see inside back cover or visit www.ti.com Typical Characteristics PT5040 Series 1-A Positive Step-up Integrated Switching Regulator PT5041, +12.0 VDC PT5042, +15.0 VDC (See Note A) Efficiency vs Output Current Efficiency vs Output Current 100 10 0 90 Efficiency - % Efficiency - % 90 V in 80 11.0V 8.0V 70 6.0V 60 80 V in 14.0V 12.0V 10.0V 8.0V 6.0V 5.0V 70 60 5.0V 50 50 40 40 0 0 .2 0 .4 0 .6 0 .8 0 1 0.1 5 Ripple Voltage vs Output Current 0 .6 0.7 5 Ripple Voltage vs Output Current 20 0 Ripple-(mV) Ripple-(mV) 0.4 5 250 25 0 V in 5.0V 15 0 6.0V 8.0V 10 0 200 V in 5.0V 6.0V 8.0V 10.0V 12.0V 14.0V 150 100 11.0V 50 50 0 0 0 0 .2 0 .4 0 .6 0 .8 1 0 0.15 Iout-(Amps) 0 .3 0.45 0 .6 0.75 Iout-(Amps) Power Dissipation vs Output Current Power Dissipation vs Output Current 2.5 3 2.5 2 PD-(Watts) PD-(Watts) 0 .3 Iout-(Amps) Iout-(Amps) Vin 1.5 5.0V 6.0V 1 Vin 2 5.0V 6.0V 8.0V 10.0V 12.0V 14.0V 1.5 8.0V 1 11.0V 0.5 0.5 0 0 0 0.2 0.4 0.6 0.8 1 0 Iout-(Amps) 0.15 0.3 0.45 0.6 0.75 Iout-(Amps) Safe Operating Area (VIN=5V) (See Note B) Safe Operating Area (VIN=5V) (See Note B) 90 90 80 70 60 Airflow 50 0 LFM 60 LFM 40 90 LFM 30 Ambient Temperature - (C°) Ambient Temperature - (C°) (See Note A) 80 70 60 Airflow 50 0 LFM 60 LFM 40 90 LFM 30 20 0 0.2 0.4 0.6 0.8 Maximum Output Current - (Amps) 1 20 0.00 0.25 0.50 0.75 Maximum Output Current - (Amps) Note A: Characteristic data has been developed from actual products tested at 25°C. This data is considered typical data for the Converter. Note B: Thermal derating graphs are developed in free-air convection cooling, which corresponds to approximately 40–60LFM of airflow. For technical support and more information, see inside back cover or visit www.ti.com IMPORTANT NOTICE Texas Instruments Incorporated and its subsidiaries (TI) reserve the right to make corrections, modifications, enhancements, improvements, and other changes to its products and services at any time and to discontinue any product or service without notice. Customers should obtain the latest relevant information before placing orders and should verify that such information is current and complete. All products are sold subject to TI’s terms and conditions of sale supplied at the time of order acknowledgment. TI warrants performance of its hardware products to the specifications applicable at the time of sale in accordance with TI’s standard warranty. Testing and other quality control techniques are used to the extent TI deems necessary to support this warranty. Except where mandated by government requirements, testing of all parameters of each product is not necessarily performed. TI assumes no liability for applications assistance or customer product design. Customers are responsible for their products and applications using TI components. To minimize the risks associated with customer products and applications, customers should provide adequate design and operating safeguards. TI does not warrant or represent that any license, either express or implied, is granted under any TI patent right, copyright, mask work right, or other TI intellectual property right relating to any combination, machine, or process in which TI products or services are used. Information published by TI regarding third–party products or services does not constitute a license from TI to use such products or services or a warranty or endorsement thereof. Use of such information may require a license from a third party under the patents or other intellectual property of the third party, or a license from TI under the patents or other intellectual property of TI. Reproduction of information in TI data books or data sheets is permissible only if reproduction is without alteration and is accompanied by all associated warranties, conditions, limitations, and notices. Reproduction of this information with alteration is an unfair and deceptive business practice. TI is not responsible or liable for such altered documentation. Resale of TI products or services with statements different from or beyond the parameters stated by TI for that product or service voids all express and any implied warranties for the associated TI product or service and is an unfair and deceptive business practice. TI is not responsible or liable for any such statements. Mailing Address: Texas Instruments Post Office Box 655303 Dallas, Texas 75265 Copyright 2001, Texas Instruments Incorporated