JAJS012J October   2004  – November 2018 TPS75003

PRODUCTION DATA.  

  1. 1 特長
  2. 2 アプリケーション
  3. 3 概要
    1.     Device Images
      1.      代表的なアプリケーションの回路図
  4. 4 改訂履歴
  5. 5 Pin Configuration and Functions
    1.     Pin Functions
  6. 6 Specifications
    1. 6.1 Absolute Maximum Ratings
    2. 6.2 ESD Ratings
    3. 6.3 Recommended Operating Conditions
    4. 6.4 Thermal Information
    5. 6.5 Electrical Characteristics
    6. 6.6 Typical Characteristics
      1. 6.6.1 Buck Converter
      2. 6.6.2 LDO Converter
  7. 7 Detailed Description
    1. 7.1 Overview
    2. 7.2 Functional Block Diagram
    3. 7.3 Feature Description
      1. 7.3.1  Operation (Buck Controllers)
      2. 7.3.2  Enable (Buck Controllers)
      3. 7.3.3  UVLO (Buck Controllers)
      4. 7.3.4  Current Limit (Buck Controllers)
      5. 7.3.5  Short-Circuit Protection (Buck Controllers)
      6. 7.3.6  Soft-Start (Buck Controllers)
      7. 7.3.7  LDO Operation
      8. 7.3.8  Internal Current Limit (LDO)
      9. 7.3.9  Enable Pin (LDO)
      10. 7.3.10 Dropout Voltage (LDO)
      11. 7.3.11 Transient Response (LDO)
      12. 7.3.12 Thermal Protection (LDO)
      13. 7.3.13 Power Dissipation (LDO)
  8. 8 Application and Implementation
    1. 8.1 Application Information
    2. 8.2 Typical Application
      1. 8.2.1 Design Requirements
      2. 8.2.2 Detailed Design Procedure
        1. 8.2.2.1  Input Capacitor CIN1, CIN2 Selection (Buck Controllers)
        2. 8.2.2.2  Inductor Value Selection (Buck Controllers)
        3. 8.2.2.3  External PMOS Transistor Selection (Buck Controllers)
        4. 8.2.2.4  Diode Selection (Buck Controllers)
        5. 8.2.2.5  Output Capacitor Selection (Buck Controllers)
        6. 8.2.2.6  Output Voltage Ripple Effect on VOUT (Buck Controllers)
        7. 8.2.2.7  Soft-Start Capacitor Selection (Buck Controllers)
        8. 8.2.2.8  Output Voltage Setting Selection (Buck Controllers)
        9. 8.2.2.9  Input Capacitor Selection (LDO)
        10. 8.2.2.10 Output Capacitor Selection (LDO)
        11. 8.2.2.11 Soft-Start Capacitor Selection (LDO)
        12. 8.2.2.12 Setting Output Voltage (LDO)
      3. 8.2.3 Application Curves
  9. 9 Power Supply Recommendations
  10. 10Layout
    1. 10.1 Layout Guidelines
      1. 10.1.1 PCB Layout Considerations
    2. 10.2 Layout Example
  11. 11デバイスおよびドキュメントのサポート
    1. 11.1 デバイス・サポート
      1. 11.1.1 デベロッパー・ネットワークの製品に関する免責事項
      2. 11.1.2 開発サポート
    2. 11.2 ドキュメントのサポート
      1. 11.2.1 関連資料
    3. 11.3 ドキュメントの更新通知を受け取る方法
    4. 11.4 コミュニティ・リソース
    5. 11.5 商標
    6. 11.6 静電気放電に関する注意事項
    7. 11.7 Glossary
  12. 12メカニカル、パッケージ、および注文情報

8.1 Application Information

The TPS75003 is an integrated power management IC designed specifically to power DSPs and FPGAs such as the Xilinx Spartan-3, Spartan-3E and Spartan-3L. Two non-synchronous buck controllers can be configured to supply up to 3A for both CORE and I/O rails. A low dropout linear regulator powers auxiliary rails up to 300mA. All channels have independent enable and soft-start, allowing control of inrush current and output voltage ramp time as required by the application.

Table 1 through Table 4 show component values that have been tested for use with up to 3A load currents. Inductors in Table 1 are tested up to the respective saturation currents. Other similar external components can be substituted as desired; however, in all cases the circuits that are used should be tested for compliance to application requirements.

Table 1. Inductors Tested with the TPS75003

PART NUMBER MANUFACTURER INDUCTANCE DC RESISTANCE SATURATION CURRENT
SLF7032T−100M1R4 TDK 10μH ±20% 53mΩ ±20% 1.4A
SLF6025−150MR88 TDK 15μH ±20% 85mΩ ±20% 0.88A
CDRH6D28−5R0 Sumida 5μH 23mΩ 2.4A
CDRH6D38-5R0 Sumida 5μH 18mΩ 2.9A
CDRH103R−100 Sumida 10μH 45mΩ 2.4A
CDRH4D28−100 Sumida 10μH 96mΩ 1.0A
CDRH8D43-150 Sumida 15μH 42mΩ 2.9A
CDRH5D18−6R2 Sumida 6.2μH 71mΩ 1.4A
DO3316P−472 Coilcraft 4.7μH 18mΩ 5.4A
MSS7341-153 Coilcraft 15μH 55mΩ 1.6A
MSS7341-223 Coilcraft 22μH 82mΩ 1.26A
744052006 Wurth 6.2μH 80mΩ 1.45A
74451115 Wurth 15μH 90mΩ 0.8A

Table 2. PMOS Transistors Tested with the TPS75003

PART NUMBER MANUFACTURER RDS,ON (TYP) VDS ID PACKAGE
SI5457DC-T1-GE3 Vishay 0.056Ω at VGS = –2.5V –20V –6A at +25°C 1206-8
SI2301BDS-T1-E3 Vishay 0.15Ω at VGS = –2.5V –20V –2.0A at +25°C SOT-23
SI2323DS-T1-E3 Vishay 0.052Ω at VGS = –2.5V –20V –4.1A at +25°C SOT-23
FDG328P Fairchild 0.12Ω at VGS = –2.5V –20V –1.5A SC70-6

Table 3. Diodes Tested with the TPS75003

PART NUMBER MANUFACTURER VR IF PACKAGE
FSV240AF ON Semiconductor / Fairchild 40V 2.0A DO-214-2
FSV340FP ON Semiconductor / Fairchild 40V 3.0A SOD-123-2
SS32 ON Semiconductor / Fairchild 20V 3.0A DO-214AB
ZHCS2000TA Zetex 40V 2.0A SOT-23−6
B320AE-13 Diodes Inc. 20V 3.0A SMA

Table 4. Capacitors Tested with the TPS75003

PART NUMBER MANUFACTURER CAPACITANCE ESR VOLTAGE RATING
10TPB47M (PosCap) Panasonic 47μF 0.07Ω 10V
T491D476M010AT Kemet 47μF 0.8Ω 10V
T495D476K016ATE180 Kemet 47μF 0.18Ω 16V
TR3C476K016C0300 Vishay 47μF 0.3Ω 16V
T495D107M006ATE050 Kemet 100μF 0.05Ω 6.3V
TPSC107M006R0075 AVX 100μF 0.075Ω 6.3V
6TPE100MPB (PosCap) Panasonic 100μF 0.025Ω 6.3V
TR3C107K6R3C0125 Vishay 100μF 0.25Ω 6.3V