PT79SR100_09 TI1 | Alldatasheet
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For technical support and more information, see inside back cover or visit www.ti.com/powertrends PT79SR100 Series -1.5 Amp Negative Step-Down Integrated Switching Regulator
- High Efficiency > 85%
- Self-Contained Inductor
- Short Circuit Protection
- Over-T emperature Protection The PT79SR100 is a line of Negative Input/Negative Output 3-terminal Integrated Switching Regulators (ISRs). These ISRs have a maximum output current of -1.5 Amps and an output voltage that is laser trimmed to most industry standard volt- ages. They have excellent line and load regulation, and are ideal for applications, such as RS232 and Ethernet communica- tions, ECL logic, and op-amp circuitry. PT79SR1 COMCOM -Vin C1 1 C2D1 -Vout Pin-Out Information Pin Function
1 GND
Ordering Information
05 = -5.0 Volts 52 = -5.2 Volts 06 = -6.0 Volts 08 = -8.0 Volts 09 = -9.0 Volts 12 = -12.0 Volts 15 = -15.0 Volts Package Suffix V = Vertical Mount S = Surface Mount H = Horizontal Mount Standard Application C1 = Optional ceramic (1µF) C2 = Optional ceramic (1-5µF) D1= Zener diode required to clamp turn-on overshoot (See Application Note) Specifications Characteristics PT79SR100 SERIES (Ta = 25°C unless noted) Symbols Conditions Min Typ Max Units Output Current I o Over Vin range -0.1* — -1.5 A Short Circuit Current I sc Vin=Vo-4V — -3.5 — Apk Input Voltage Range V in Io=-0.1 to -1.5 A V o=-5V -9 — -30 V Output Voltage Tolerance ∆Vo Over Vin range, Io=-1.5 A — ±1.0 ±3.0 %V oTa=-20°C to shutdown Line Regulation Reg line Over Vin range — ±1.0 ±2.0 %V o Load Regulation Reg load -0.1 ≤ Io ≤ -1.5 A — ±0.5 ±1.0 %V o Vo Ripple/Noise V n Vin=-15V, Io=-1.0 A,Vo=-5V — 35 — mV pp Transient Response t tr 50% load change — 100 — µSec Vo=overshoot/undershoot — 30 — %V o Efficiency η Vin=-10V, Io=-1.0A, Vo=-5V — 85 — % Switching Frequency ƒ o Over Vin and Io ranges0.95 1.0 1.05 MHz Absolute Maximum T a -40 — +85 °COperating T emperature Range Recommended Operating T a Free Air Convection, (40-60LFM) -40 — +60** °CTemperature Range Over V in and Io ranges Thermal Resistance θja Free Air Convection, (40-60LFM) — 45 — °C/W Temperature Coefficient T c Over Vin and Io ranges— ±0.5 ±1.5 mV/°C Storage Temperature T s — -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’s20-2000 Hz, soldered in a PC board Weight — — — 7.0 — Grams * ISR will operate down to no load with reduced specifications. ** See Thermal Derating chart. Pkg Style 500 SLTS061A (Revised 6/30/2000)
For technical support and more information, see inside back cover or visit www.ti.com/powertrends T ypical Characteristics PT79SR105, -5.0 VDC (See Note 1) PT79SR112, -12.0 VDC (See Note 1) PT79SR115, -15.0 VDC (See Note 1) Efficiency vs Output Current Efficiency vs Output Current Efficiency vs Output Current Ripple vs Output Current Ripple vs Output Current Ripple vs Output Current Power Dissipation vs Output Current Power Dissipation vs Output Current Power Dissipation vs Output Current Note 1: All data listed in the above graphs, except for derating data, has been developed from actual products tested at 25°C. This data is considered typical data for the ISR. Note 2: Thermal derating graphs are developed in free air convection cooling of 40-60 LFM soldered in a printed circuit board. (See Thermal Application Notes.) Thermal Derating (Ta) (See Note 2) Thermal Derating (Ta) (See Note 2) Thermal Derating (Ta) (See Note 2) Efficiency - %Ripple-(mV)Iout-(Amps)PD-(Watts) Efficiency - %Ripple-(mV)Iout-(Amps)PD-(Watts) Efficiency - %Ripple-(mV)Iout-(Amps)PD-(Watts) Iout-(Amps) Iout-(Amps) Iout-(Amps) Vin-(Volts) Iout-(Amps) Iout-(Amps) Iout-(Amps) Vin-(Volts) Iout-(Amps) Iout-(Amps) Iout-(Amps) Vin-(Volts) 100 10.0V 15.0V 20.0V 25.0V 30.0V Vin 30.0V 25.0V 20.0V 15.0V 10.0V Vin 0.5 1.5 30.0V 25.0V 20.0V 15.0V 10.0V Vin 100 16.0V 20.0V 25.0V 30.0V Vin 0.5 1.5 2.5 30.0V 25.0V 20.0V 16.0V Vin 100 19.0V 21.0V 24.0V 27.0V 30.0V Vin 120 150 30.0V 27.0V 24.0V 21.0V 19.0V Vin 0.2 0.4 0.6 0.8 1.2 1.4 1.6 7 9 11 13 15 17 19 21 23 25 27 29 31 60˚C 70˚C 85˚C 50˚C 0.2 0.4 0.6 0.8 1.2 1.4 1.6 15 17 19 21 23 25 27 29 31 60˚C 70˚C 85˚C 50˚C 0.2 0.4 0.6 0.8 1.2 1.4 1.6 18 20 22 24 26 28 30 60˚C 70˚C 85˚C 50˚C 100 30.0V 25.0V 20.0V 16.0V Vin 0.5 1.5 2.5 30.0V 27.0V 24.0V 21.0V 19.0V Vin PT79SR100 Series -1.5 Amp Negative Step-Down Integrated Switching Regulator
Orderable Device Status(1) Package Type Package Drawing Pins Package Qty Eco Plan(2) Lead/Ball FinishMSL Peak Temp (3) PT79SR105H ACTIVE SIP MOD ULE EFA 3 25 Pb-Free (RoHS) Call TI N / A for Pkg Type PT79SR105S ACTIVE SIP MOD ULE EFC 3 25 Pb-Free (RoHS) Call TI Level-1-215C-UNLIM PT79SR105T ACTIVE SIP MOD ULE EFT 3 25 Pb-Free (RoHS) Call TI Level-1-215C-UNLIM PT79SR105V ACTIVE SIP MOD ULE EFD 3 25 Pb-Free (RoHS) Call TI N / A for Pkg Type PT79SR106S ACTIVE SIP MOD ULE EFC 3 25 Pb-Free (RoHS) Call TI N / A for Pkg Type PT79SR108H ACTIVE SIP MOD ULE EFA 3 25 Pb-Free (RoHS) Call TI N / A for Pkg Type PT79SR108S ACTIVE SIP MOD ULE EFC 3 25 Pb-Free (RoHS) Call TI Level-1-215C-UNLIM PT79SR108V ACTIVE SIP MOD ULE EFD 3 25 Pb-Free (RoHS) Call TI N / A for Pkg Type PT79SR109H ACTIVE SIP MOD ULE EFA 3 25 Pb-Free (RoHS) Call TI N / A for Pkg Type PT79SR109S ACTIVE SIP MOD ULE EFC 3 25 Pb-Free (RoHS) Call TI Level-1-215C-UNLIM PT79SR112H ACTIVE SIP MOD ULE EFA 3 25 Pb-Free (RoHS) Call TI N / A for Pkg Type PT79SR112S ACTIVE SIP MOD ULE EFC 3 25 Pb-Free (RoHS) Call TI Level-1-215C-UNLIM PT79SR112T ACTIVE SIP MOD ULE EFT 3 25 Pb-Free (RoHS) Call TI N / A for Pkg Type PT79SR112V ACTIVE SIP MOD ULE EFD 3 25 Pb-Free (RoHS) Call TI N / A for Pkg Type PT79SR115H ACTIVE SIP MOD ULE EFA 3 25 Pb-Free (RoHS) Call TI N / A for Pkg Type PT79SR115S ACTIVE SIP MOD ULE EFC 3 25 Pb-Free (RoHS) Call TI Level-1-215C-UNLIM PT79SR115T ACTIVE SIP MOD ULE EFT 3 25 Pb-Free (RoHS) Call TI N / A for Pkg Type PT79SR115V ACTIVE SIP MOD ULE EFD 3 25 Pb-Free (RoHS) Call TI N / A for Pkg Type PT79SR152H ACTIVE SIP MOD ULE EFA 3 25 Pb-Free (RoHS) Call TI Level-1-215C-UNLIM PT79SR152S ACTIVE SIP MOD ULE EFC 3 25 Pb-Free (RoHS) Call TI Level-1-215C-UNLIM PT79SR152ST ACTIVE SIP MOD ULE EFC 3 200 Pb-Free (RoHS) Call TI Level-1-215C-UNLIM PT79SR152V ACTIVE SIP MOD ULE EFD 3 25 Pb-Free (RoHS) Call TI Level-1-215C-UNLIM (1)The marketing status values are defined as follows: ACTIVE: Product device recommended for new designs. LIFEBUY: TI has announced that the device will be discontinued, and a lifetime-buy period is in effect. NRND: Not recommended for new designs. Device is in production to support existing customers, but TI does not recommend using this part in a new design. PREVIEW: Device has been announced but is not in production. Samples may or may not be available. PACKAGE OPTION ADDENDUM www.ti.com 9-Oct-2007 Addendum-Page 1
OBSOLETE: TI has discontinued the production of the device. (2)Eco Plan - The planned eco-friendly classification: Pb-Free (RoHS), Pb-Free (RoHS Exempt), or Green (RoHS & no Sb/Br) - please check http://www.ti.com/productcontentfor the latest availability information and additional product content details. TBD: The Pb-Free/Green conversion plan has not been defined. Pb-Free (RoHS):TI's terms "Lead-Free" or "Pb-Free" mean semiconductor products that are compatible with the current RoHS requirements for all 6 substances, including the requirement that lead not exceed 0.1% by weight in homogeneous materials. Where designed to be soldered at high temperatures, TI Pb-Free products are suitable for use in specified lead-free processes. Pb-Free (RoHS Exempt):This component has a RoHS exemption for either 1) lead-based flip-chip solder bumps used between the die and package, or 2) lead-based die adhesive used between the die and leadframe. The component is otherwise considered Pb-Free (RoHS compatible) as defined above. Green (RoHS & no Sb/Br):TI defines "Green" to mean Pb-Free (RoHS compatible), and free of Bromine (Br) and Antimony (Sb) based flame retardants (Br or Sb do not exceed 0.1% by weight in homogeneous material) (3) MSL, Peak Temp. -- The Moisture Sensitivity Level rating according to the JEDEC industry standard classifications, and peak solder temperature. Important Information and Disclaimer:The information provided on this page represents TI's knowledge and belief as of the date that it is provided. TI bases its knowledge and belief on information provided by third parties, and makes no representation or warranty as to the accuracy of such information. Efforts are underway to better integrate information from third parties. TI has taken and continues to take reasonable steps to provide representative and accurate information but may not have conducted destructive testing or chemical analysis on incoming materials and chemicals. TI and TI suppliers consider certain information to be proprietary, and thus CAS numbers and other limited information may not be available for release. In no event shall TI's liability arising out of such information exceed the total purchase price of the TI part(s) at issue in this document sold by TI to Customer on an annual basis. PACKAGE OPTION ADDENDUM www.ti.com 9-Oct-2007 Addendum-Page 2
MPSI048 – SEPTEMBER 2001 1POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 EFD (R–PSIP–T3) PLASTIC SINGLE-IN-LINE MODULE 4203860/A 09/01PC LAYOUT Note E Plated through ø0.035 (0,88) MIN. 3 Places 0.33 (8,38) 0.017 (0,43) TYP. 0.90 (22,86) MAX. 0.31 (7,87) MAX. 0.94 (23,87) Pin 1 Designation 0.100 (2,54) TYP. MAX. 0.017 (0,43) TYP. MIN. 0.230 (5,84) 0.94 (23,87) 0.37 (9,39) Suffix V NOTES: A. All linear dimensions are in inches (mm). B. This drawing is subject to change without notice. C. 2 place decimals are /C0006 0.030 (/C0006 0,76mm). D. 3 place decimals are /C0006 0.010 (/C0006 0,25mm). E. Recommended mechanical keep out area.
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