PT5540 TI | Alldatasheet

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Technical content

Features

  • Input Voltage: 5V
  • 84% Efficiency
  • Industrial Temperature Range: –40°C to +85°C
  • Under-Voltage Lockout
  • Soft Start Pin-Out Information +VO COMCOM +VIN PT55401 C IN 100µF C OUT 100µF

Description

The PT5540 Excalibur™ power modules are a series of integrated switching regulators (ISRs) that provide a boost-voltage function. They are designed for use with +5V bus systems that require an additional higher voltage rail. The modules are rated 12W and produce a fixed output voltage over the full industrial temperature range of -40°C to +85°C. The series includes the common output voltages, +12V and +15V. Applications include PCI cards, audio circuits, and battery operated instruments. The PT5540 series is packaged in a 3-pin thermally efficient copper case. The case is solderable, has a small footprint, and can accommodate both through-hole and surface mount pin configurations. The PT5540 series is offered as a next generation replacement to the popular PT5040 series. The PT5540 has a lower operating temperature range and improved start-up characteristics. PT Series Suffix (PT1234x) Case/Pin Order Package Configuration Suffix Code Vertical N (EFN) Horizontal A (EFP) SMD C (EFQ) (Reference the applicable package code draw- ing for the dimensions and PC board layout)

  • Small Footprint: 0.94in × 0.35in (Vertical package)
  • Solderable Copper Case
  • Surface Mountable
  • IPC Lead Free 2

For technical support and more information, see inside back cover or visit www.ti.com SL TS175 FEBRUARY 2003 PT5540 Series 12-W 5-V Input Step-Up (Boost) Integrated Switching Regulator Specifications (Unless otherwise stated, T a =25°C, Vin =5V, Cin =100µF, Cout =100µF, and Io =Iomax) PT5540 SERIES Characteristics Symbols Conditions Min Typ Max Units Output Current I o Over Vin range PT5541/8 0.1 (1) —1 PT55420.1 — 0.75 PT5544 0.1 — 1.75 A PT5545 0.1 — 1.5 PT5546 0.1 — 1.3 Input Voltage Range V in Over Io range V o >10V 4.5 9 VVo ≤10V 4.5 — (V o–1) Set-Point Voltage Tolerance V o tol — — ±2%V o Temperature Variation ∆Regtemp –40°C <Ta < +85°C, Io =Iomin — ±0.5 — %V o Line Regulation ∆Regline Over Vin range — — ±0.5 %V o Load Regulation ∆Regload Over Io range — — ±0.5 %V o Total Output Variation ∆Regtot Includes set-point, line, load, —± 3—% V o–40°C ≤ Ta ≤ +85°C Efficiency η Io =75% of Iomax PT5541/8 — 84 — PT5542— 84 — PT5544 — 86 — % PT5545 — 86 — PT5546 — 86 — Vo Ripple (pk-pk) V r 20MHz bandwidth — 2 5 % V o Transient Response t tr 1A/µs load step, 50% of I omax — 150 — µSec ∆Vtr Vo over/undershoot — 1 3 % V o Under-Voltage Lockout UVLO V in increasing — 4.3 — VHysterisis 0.1 0.2— Start-up Current I instart On start up, Cout =560uF — I in + 0.5 — A Switching Frequency ƒ o Over Vin and Io ranges 300 350 400 kHz External Capacitance C in 100 (3) —— µFCout 100 (3) — 560 Operating Temperature Range T a Over Vin range –40 (4) —+ 8 5 (5) °C Storage Temperature T s — -40 — +125 °C Mechanical Shock Per Mil-STD-883D, Method 2002.3 , 1 msec, — 500 — G’s Half Sine, mounted to a fixture Mechanical Vibration Per Mil-STD-883D, Method 2007.2, 20-2000 Hz, Soldered in a PC board — 20 (6) —G ’ s Weight — — — 6.5 — grams Flammability — Materials meet UL 94V-0 Notes: (1) The ISR will operate down to no load with reduced specifications. (2) Boost topology ISRs are not short circuit protected. (3) The PT5540 Series requires a 100µF electrolytic or tantalum capacitor at both the input and output for proper operation in a ll applications. (4) For operation below 0°C, the output capacitor C 2 must have stable characteristics. Use either a low ESR tantalum or Oscon® capacitor. (5) See SOA curves or consult factory for the appropriate derating. (6) The case pins on the through-hole package types (suffixes N & A) must be soldered. For more information see the applicable p ackage outline drawing.

For technical support and more information, see inside back cover or visit www.ti.com SL TS175 FEBRUARY 2003 Note A: Characteristic data has been developed from actual products tested at 25°C. This data is considered typical data for the ISR. Note B: SOA curves represent operating conditions at which internal components are at or below manufacturer’s maximum rated operating t emperatures. Efficiency vs Output Current Ripple vs Output Current Power Dissipation vs Output Current PT5545, 9VDC (See Note A) Safe Operating Area; Vin =5V (See Note B) Typical CharacteristicsPT5540 Series 12-W 5-V Input Step-Up (Boost) Integrated Switching Regulator Efficiency vs Output Current Ripple vs Output Current Power Dissipation vs Output Current PT5542, 15VDC (See Note A) Safe Operating Area; Vin =5V (See Note B) Efficiency vs Output Current Ripple vs Output Current Power Dissipation vs Output Current PT5541, 12VDC (See Note A) Safe Operating Area; Vin =5V (See Note B) 100 0 0.2 0.4 0.6 0.8 1 Iout (A) Efficiency - % 9.0V 7.0V 5.0V VIN 100 150 200 250 300 0 0.2 0.4 0.6 0.8 1 Iout (A) Ripple - mV 5.0V 6.0V 7.0V 8.0V 9.0V VIN 0.5 1.5 2.5 0 0.2 0.4 0.6 0.8 1 Iout (A) Pd - Watts 5.0V 6.0V 7.0V 8.0V 9.0V VIN 100 Iout (A) Efficiency - % 9.0V 8.0V 7.0V 6.0V 5.0V VIN 120 160 200 240 Iout (A) Ripple - mV 5.0V 6.0V 7.0V 8.0V 9.0V VIN 0.5 1.5 2.5 Iout (A) Pd - Watts 5.0V 6.0V 7.0V 8.0V 9.0V VIN 100 Iout (A) Efficiency - % 8.0V 7.0V 6.0V 5.0V VIN 100 150 200 250 Iout (A) Ripple - mV 5.0V 6.0V 7.0V 8.0V VIN 0.5 1.5 2.5 Iout (A) Pd - Watts 5.0V 6.0V 7.0V 8.0V VIN 0 0.2 0.4 0.6 0.8 1 Iout (A) Ambient Temperature (°C) 200LFM 120LFM 60LFM Nat Conv Airflow Iout (A) Ambient Temperature (°C) 200LFM 120LFM 60LFM Nat Conv Airflow Iout (A) Ambient Temperature (°C) 200LFM 120LFM 60LFM Nat Conv Airflow

For technical support and more information, see inside back cover or visit www.ti.com Application Notes Table 1: Input/Output Capacitors (1) N/R –Not recommended. The surge and normal voltage rating does not meet the minimum operating limits. Capacitor Recommendations for the PT5540 Boost Regulator Regulator Series Input Capacitors: The minimum input capacitance required is 100µF, with a 200-mA(rms) ripple current rating and 150m Ω typical equivalent series resistance (ESR). Electrolytic capacitors have marginal ripple performance at frequencies greater than 400kHz but have excellent low-frequency transient response. Above the ripple frequency, ceramic capacitors are necessary to improve the transient response and reduce any high frequency noise components apparent during higher current excursions. Preferred ESR type capacitor part numbers are identified in Table 2-1. Output Capacitor: The recommended output capacitance is determined by 0.5-A(rms) ripple current rating and 100µF minimum capacitance. The maximum output capacitance is 560µF. Ripple current and >50m Ω ESR value are the major considerations, along with temperature, when designing with different types of capacitors. Tantalum capacitors have a recommended minimum voltage rating of 2 × (the maximum DC voltage + AC ripple). This is necessary to insure reliability for input voltage bus applications. PT5540 Series Tantalum Capacitors (Optional Input Capacitors) Tantalum type capacitors can be used for the input bus but only the AVX TPS, Sprague 593D/594/595, or Kemet T495/T510 series. These capacitors are recommended over many other tantalum types due to their higher rated surge, power dissipation, and ripple current capability. As a caution the TAJ series by AVX is not recommended. This series has considerably higher ESR, reduced power dissipation, and lower ripple current capability. The TAJ series is less reliable than the AVX TPS series when deter- mining power dissipation capability. Tantalum or Oscon® types are recommended for applications where ambient temperatures fall below 0°C. Do not use tantalum capaci- tors on the output bus. Capacitor Table Table 1 identifies the characteristics of capacitors from a number of vendors with acceptable ESR and ripple current ratings. The number of capacitors required at both the input and output buses is identified for each capacitor type. This is not an extensive capacitor list. Capacitors from other vendors are available with comparable specifications. Those listed are for guidance. The RMS ripple current rating and ESR (Equivalent Series Resistance at 100kHz) are critical parameters necessary to insure both optimum regulator performance and long capacitor life. /rodneVroticapaC seireS scitsiretcarahCroticapaCy titnauQ gnikroW egatloV )Fµ(eulaVt nelaviuqE)RSE( ecnatsiseRseireS mumixaMC°501 elppiR )smrI(tnerruC lacisyhP )mm(eziS tupnI suB tuptuO suB rebmuNtraProdneV cinosanaP )laidaR(CF )gtMecafruS(KF/CF V53 V52 V53 V53 001 033 001 001 711.0 Ω 090.0 Ω 051.0 Ω 0610 Ω Am555 Am557 Am076 Am006 5.11x8 01 × 5.21 2.01x01 2.01x8 101V1CFUEE 133E1CFUEE P101V1CFVEE 101V1KFVEE P noc-imehCdetinU seireSVXL/ZXL )gtMecafruS(YVM V53 V52 V52 051 022 033 021.0 Ω 021.0 Ω 051.0 Ω Am555 Am555 Am076 21x8 21x8 01 × 3.01 LL21X8M151BV53ZXL LL21X8M122BV52ZXL PT01X01M133CV52YVM nocihciN seireSMP XN V53 V52 V61 021 081 051 051.0 Ω 051.0 Ω 620.0 Ω Am555 Am555 Am0033 5.21x01 5.21x01 8x01 R/N )1( 6HPM121V1MPU 6HPM181E1MPU SG1RCM151C1XNP :noc-sO PS )tnuoMecafrus(PVS V02 V02 021 001 420.0 Ω 420.0 Ω Am0013 Am0233 5.01x8 21x8 R/N )1( R/N )1( (M021PS02 )tuoVoN (M001PVS02 )tuoVoN mulatnaTXVA )tgtMecafruS(SPT V61 V02 001 001 521.0 Ω 002.0 Ω Am9411> Am8111> L3.7 × W7.5 × H1.4 R/N )1( R/N )1( (5210R610M701ESPT )tuoVoN 0020R610M701VSPT )tuoVoN( mulatnaTtemeK seireS594T/025T (t nuoMecafruS) V01 V01 001 001 080.0 Ω 001.0 Ω Am0071 Am001> W3.4 × L3.7 × H0.4 R/N )1( R/N )1( SA010M701D025T )tuoVoN( SA010M701X594T )tuoVoN( mulatnaTeugarpS seireSD495 (t nuoMecafruS) V610 015 70.0 Ω Am0141L 2.7 × W6 × H1.4 1R /N )1( T2D6100X701D495

For technical support and more information, see inside back cover or visit www.ti.com Application Notes continued Fault Protection Unlike a “Buck” or step-down regulator it is not possible to provide a boost regulator with short-circuit protection. As revealed in the block diagram of Figure 1-1, inhibiting the MOSFET switching action only disables the regulator’s boost function. Therefore under a severe output impedance fault the control circuit cannot disconnect the output from the input source. To prevent an output over-current or short-circuit fault from propagating to the input bus, a fuse or equivalent over-current protection is recommended at the input of the module. Whatever form of protection is selected, it is important to note that the impedance and/or voltage drop of the series element will add to the regulator’s minimum input voltage requirements. Power up may also be affected. The combination of an input surge current with an im- pedance in series with the regulator input may cause the input voltage to momentarily dip back below the UVLO threshold. Ensure that the fuse rating or input current limit threshold are designed with a generous margin. PT5540 Series

Orderable Device Status(1) Package Type Package Drawing Pins Package Qty Eco Plan(2) Lead/Ball FinishMSL Peak Temp (3) PT5541A ACTIVE SIP MOD ULE EFP 3 30 TBD Call TI Level-1-215C-UNLIM PT5541C ACTIVE SIP MOD ULE EFQ 3 30 TBD Call TI Level-3-215C-168HRS PT5541N ACTIVE SIP MOD ULE EFN 3 30 TBD Call TI Level-1-215C-UNLIM PT5542C ACTIVE SIP MOD ULE EFQ 3 30 TBD Call TI Level-3-215C-168HRS PT5544A NRND SIP MOD ULE EFP 3 30 TBD Call TI Level-1-215C-UNLIM PT5544C ACTIVE SIP MOD ULE EFQ 3 30 TBD Call TI Level-3-215C-168HRS PT5545N NRND SIP MOD ULE EFN 3 30 TBD 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. OBSOLETE: TI has discontinued the production of the device. (2) Eco Plan - The planned eco-friendly classification: Pb-Free (RoHS) 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. 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 26-Jul-2005 Addendum-Page 1

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