ZHCSAL2H February   2006  – January 2015 TPS717

PRODUCTION DATA.  

  1. 1 特性
  2. 2 应用
  3. 3 说明
  4. 4 修订历史记录
  5. 5 Pin Configuration and 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
  7. 7 Detailed Description
    1. 7.1 Overview
    2. 7.2 Functional Block Diagrams
    3. 7.3 Feature Description
      1. 7.3.1 Internal Current Limit
      2. 7.3.2 Shutdown
      3. 7.3.3 Startup and Noise Reduction Capacitor
      4. 7.3.4 Undervoltage Lockout (UVLO)
      5. 7.3.5 Minimum Load
      6. 7.3.6 Thermal Protection
    4. 7.4 Device Functional Modes
      1. 7.4.1 Normal Operation
      2. 7.4.2 Dropout Operation
      3. 7.4.3 Disabled
  8. 8 Application and Implementation
    1. 8.1 Application Information
      1. 8.1.1 Transient Response
      2. 8.1.2 Input and Output Capacitor Requirements
      3. 8.1.3 Dropout Voltage
      4. 8.1.4 Output Noise
    2. 8.2 Typical Applications
      1. 8.2.1 Application for Fixed Voltage Versions and Adjustable Voltage Version
        1. 8.2.1.1 Design Requirements
        2. 8.2.1.2 Detailed Design Procedure
        3. 8.2.1.3 Application Curve
      2. 8.2.2 Powering a PLL Integrated on an SOC
    3. 8.3 Do's and Don'ts
  9. 9 Power Supply Recommendations
  10. 10Layout
    1. 10.1 Layout Guidelines
      1. 10.1.1 Board Layout Recommendations to Improve PSRR and Noise Performance
    2. 10.2 Layout Example
    3. 10.3 Power Dissipation
  11. 11器件和文档支持
    1. 11.1 器件支持
      1. 11.1.1 开发支持
        1. 11.1.1.1 评估模块
      2. 11.1.2 器件命名规则
    2. 11.2 文档支持
      1. 11.2.1 相关文档　
    3. 11.3 商标
    4. 11.4 静电放电警告
    5. 11.5 术语表
  12. 12机械封装和可订购信息

封装选项

机械数据 (封装 | 引脚)
散热焊盘机械数据 (封装 | 引脚)
订购信息

6 Specifications

6.1 Absolute Maximum Ratings

over operating temperature range (unless otherwise noted), all voltages are with respect to GND(1)
MIN MAX UNIT
Voltage VIN –0.3 7 V
VFB –0.3 3.6 V
VNR –0.3 3.6 V
VEN –0.3 VIN + 0.3 V(2) V
VOUT –0.3 7 V
Current IOUT Internally limited A
Continuous total power dissipation PDISS See Thermal Information
Operating junction temperature TJ –55 150 °C
Storage temperature Tstg –55 150 °C
(1) Stresses beyond those listed under Absolute Maximum Ratings may cause permanent damage to the device. These are stress ratings only, which do not imply functional operation of the device at these or any other conditions beyond those indicated under Recommended Operating Conditions. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.
(2) VEN absolute maximum rating is VIN + 0.3 V or 7 V, whichever is greater.

6.2 ESD Ratings

VALUE UNIT
V(ESD) Electrostatic discharge Human body model (HBM), per ANSI/ESDA/JEDEC JS-001, all pins(1) ±2000 V
Charged device model (CDM), per JEDEC specification JESD22-C101, all pins(2) ±500
(1) JEDEC document JEP155 states that 500-V HBM allows safe manufacturing with a standard ESD control process.
(2) JEDEC document JEP157 states that 250-V CDM allows safe manufacturing with a standard ESD control process.

6.3 Recommended Operating Conditions

over operating junction temperature range (unless otherwise noted)
MIN NOM MAX UNIT
VIN Input voltage 2.5 6.5 V
VOUT Output voltage 0.9 5 V
IOUT Output current 0 150 mA
VEN Enable voltage 0 VIN V
COUT Output capacitor 1 100 µF
TJ Junction temperature –40 125 °C

6.4 Thermal Information

THERMAL METRIC(1) TPS717xx UNIT
DCK DRV DSE
5 PINS 6 PINS 6 PINS
RθJA Junction-to-ambient thermal resistance 279.2 71.1 190.5 °C/W
RθJC(top) Junction-to-case (top) thermal resistance 57.5 96.5 94.9
RθJB Junction-to-board thermal resistance 74.1 40.5 149.3
ψJT Junction-to-top characterization parameter 0.8 2.7 6.4
ψJB Junction-to-board characterization parameter 73.1 40.9 152.8
RθJC(bot) Junction-to-case (bottom) thermal resistance n/a 10.7 n/a
(1) For more information about traditional and new thermal metrics, see the IC Package Thermal Metrics application report, SPRA953.

6.5 Electrical Characteristics

Over operating temperature range (TJ = –40°C to 125°C), VIN = VOUT(nom) + 0.5 V or 2.5 V, whichever is greater;
IOUT = 0.5 mA, VEN = VIN, COUT = 1.0 μF, CNR = 0.01 μF, unless otherwise noted. For TPS71701, VOUT = 2.8 V.
Typical values are at TJ = 25°C.
PARAMETER TEST CONDITIONS MIN TYP MAX UNIT
VIN Input voltage range(1) 2.5 6.5 V
VFB Internal reference (TPS71701) 0.790 0.800 0.810 V
VOUT Output voltage range (TPS717xx) 0.9 5.0 V
(TPS71701) 0.9 6.5 – VDO V
VOUT Output accuracy Nominal TJ = 25°C ±2.5 mV
Output accuracy
(VOUT < 1.0 V)		 Over VIN, IOUT, Temp(3) VOUT + 0.5 V ≤ VIN ≤ 6.5 V
0 mA ≤ IOUT ≤ 150 mA		 –30 +30 mV
Output accuracy
(VOUT ≥ 1.0 V)		 Over VIN, IOUT, Temp(3) VOUT + 0.5 V ≤ VIN ≤ 6.5 V
0 mA ≤ IOUT ≤ 150 mA		 –3.0% +3.0%
ΔVOUT(ΔVIN) Line regulation (1) VOUT(nom) + 0.5 V ≤ VIN ≤ 6.5 V,
IOUT = 5 mA		 125 µV/V
ΔVOUT(ΔIOUT) Load regulation 0 mA ≤ IOUT ≤ 150 mA 70 µV/mA
VDO Dropout voltage(2)
(VIN = VOUT(nom) – 0.1 V)		 IOUT = 150 mA 170 300 mV
ILIM (fixed) Output current limit (fixed output) VOUT = 0.9 × VOUT(nom) 200 325 575 mA
ILIM (adjustable) Output current limit (TPS71701) VOUT = 0.9 × VOUT(nom) 200 325 575 mA
IGND Ground pin current IOUT = 0.1 mA 45 80 μA
IOUT = 150 mA 100 μA
ISHDN Shutdown current (IGND) VEN ≤ 0.4 V,
TJ = –40°C to 85°C		 2.5 V ≤ VIN < 4.5 V 0.20 1.5 μA
4.5 V ≤ VIN ≤ 6.5 V 0.90 μA
IFB Feedback pin current (TPS71701) 0.02 1.0 μA
PSRR Power-supply rejection ratio VIN = 3.8 V,
VOUT = 2.8 V,
IOUT = 150 mA		 f = 100 Hz 70 dB
f = 1 kHz 70 dB
f = 10 kHz 67 dB
f = 100 kHz 67 dB
f = 1 MHz 45 dB
Vn Output noise voltage BW = 100 Hz to 100 kHz,
VIN = 3.8 V,
VOUT = 2.8 V,
IOUT = 10 mA		 CNR = none 95 × VOUT μVRMS
CNR = 0.001 μF 25 × VOUT μVRMS
CNR = 0.01 μF 12.5 × VOUT μVRMS
CNR = 0.1 μF 11.5 × VOUT μVRMS
tSTR Startup time VOUT = 90% VOUT(nom),
RL = 19 Ω,
COUT = 1 μF		 0.9 V ≤ VOUT ≤ 1.6V, CNR = 0.001 μF 0.700 ms
1.6 V < VOUT < VMAX, CNR = 0.01 μF 0.160 ms
VEN(high) Enable high (enabled) VIN ≤ 5.5 V 1.2 6.5(4) V
5.5 V < VIN ≤ 6.5 V 1.25 6.5 V
VEN(low) Enable low (shutdown) 0 0.4 V
IEN(high) Enable pin current, enabled EN = 6.5 V 0.02 1.0 μA
UVLO Undervoltage lockout VIN rising 2.41 2.45 2.49 V
Hysteresis VIN falling 150 mV
Tsd Thermal shutdown temperature Shutdown, temperature increasing 160 °C
Reset, temperature decreasing 140 °C
TJ Operating junction temperature –40 125 °C
(1) Minimum VIN = VOUT + VDO or 2.5 V, whichever is greater.
(2) VDO is not measured for devices with VOUT(nom) < 2.6 V because the minimum VINis 2.5 V.
(3) Does not include external resistor tolerances.
(4) Maximum VEN(high) = VIN + 0.3 or 6.5 V, whichever is smaller.

6.6 Typical Characteristics

Over operating temperature range (TJ = –40°C to 125°C), VIN = VOUT(nom) + 0.5 V or 2.5 V, whichever is greater; IOUT = 0.5 mA, VEN = VIN, COUT = 1 μF, CNR = 0.01 μF, unless otherwise noted. For the adjustable version (TPS71701,) VOUT = 2.8 V. Typical values are at TA = 25°C.
TPS717 tc_load_bvs068.gif
Figure 1. Load Regulation
TPS717 tc_line_bvs068.gif
Figure 3. Line Regulation (IOUT = 5 mA)
TPS717 tc_vout_temp_bvs068.gif
Figure 5. Output Voltage vs Temperature
TPS717 tc_vdo_temp_bvs068.gif
Figure 7. Dropout Voltage vs Temperature
TPS717 tc_ignd_io_bvs068.gif
Figure 9. Ground Pin Current vs Output Current
TPS717 tc_ignd_temp_dis_lvsbm4.gif
Figure 11. Ground Pin Current vs Temperature (Disabled)
TPS717 tc_psrr_fqcy01_bvs068.gif
Figure 13. Power-Supply Ripple Rejection vs Frequency (VIN – VOUT = 1 V)
TPS717 tc_psrr_fqcy03_bvs068.gif
Figure 15. Power-Supply Ripple Rejection vs Frequency in Dropout Conditions (VIN – VOUT = 0.25 V)
TPS717 tc_psrr_fqcy05_bvs068.gif
Figure 17. Power-Supply Ripple Rejection vs Frequency in Dropout Conditions (VIN – VOUT = 0.25 V)
TPS717 tc_psrr_iout01_bvs068.gif
Figure 19. Power-Supply Ripple Rejection vs (VIN – VOUT)
TPS717 tc_psrr_iout03_bvs068.gif
Figure 21. Power-Supply Ripple Rejection vs (VIN – VOUT)
TPS717 tc_noise_cout_bvs068.gif
Figure 23. Output Spectral Noise Density vs
Output Capacitance
TPS717 tc_noisetotal_cnr_bvs068.gif
Figure 25. Total Output Noise vs Noise Reduction Capacitor
TPS717 tc_line_tr_bvs068.gif
Figure 27. Line Transient Response
TPS717 tc_turn-on_bvs068.gif
Figure 29. Turn-On Response
TPS717 tc_light_load_bvs068.gif
Figure 2. Load Regulation Under Light Loads
TPS717 tc_line02_bvs068.gif
Figure 4. Line Regulation (IOUT = 150 mA)
TPS717 tc_vdo_io_bvs068.gif
Figure 6. Dropout Voltage vs Output Current
TPS717 tc_ignd_vin_lvsbm4.gif
Figure 8. Ground Pin Current vs Input Voltage
TPS717 tc_ignd_temp_en_lvsbm4.gif
Figure 10. Ground Pin Current vs Temperature (Enabled)
TPS717 tc_iclamp_vin_lvsbm4.gif
Figure 12. Current Limit vs Input Voltage
TPS717 tc_psrr_fqcy02_bvs068.gif
Figure 14. Power-Supply Ripple Rejection vs Frequency (VIN – VOUT = 0.5 V)
TPS717 tc_psrr_fqcy04_bvs068.gif
Figure 16. Power-Supply Ripple Rejection vs Frequency (VIN – VOUT = 1 V)
TPS717 tc_psrr_fqcy06_bvs068.gif
Figure 18. Power-Supply Ripple Rejection vs Frequency (VIN – VOUT = 1 V)
TPS717 tc_psrr_iout02_bvs068.gif
Figure 20. Power-Supply Ripple Rejection vs (VIN – VOUT)
TPS717 tc_noise_iout_bvs068.gif
Figure 22. Output Spectral Noise Density vs
Output Current
TPS717 tc_noise_cnr_bvs068.gif
Figure 24. Output Spectral Noise Density vs
Noise Reduction
TPS717 tc_noisetotal_cout_bvs068.gif
Figure 26. Total Output Noise vs Output Capacitance
TPS717 tc_load_tr_bvs068.gif
Figure 28. Load Transient Response
TPS717 tc_pupd_bvs068.gif
Figure 30. Power-Up and Power-Down
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