ZHCSHP4B December   2018  – October 2019 TPS7A26

PRODUCTION DATA.  

  1. 1 特性
  2. 2 应用
  3. 3 说明
    1.     Device Images
      1.      典型应用电路
  4. 4 修订历史记录
  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
  7. 7 Detailed Description
    1. 7.1 Overview
    2. 7.2 Functional Block Diagram
    3. 7.3 Feature Description
      1. 7.3.1 Output Enable
      2. 7.3.2 Dropout Voltage
      3. 7.3.3 Current Limit
      4. 7.3.4 Undervoltage Lockout (UVLO)
      5. 7.3.5 Thermal Shutdown
      6. 7.3.6 Power Good
      7. 7.3.7 Active Overshoot Pulldown Circuitry
    4. 7.4 Device Functional Modes
      1. 7.4.1 Device Functional Mode Comparison
      2. 7.4.2 Normal Operation
      3. 7.4.3 Dropout Operation
      4. 7.4.4 Disabled
  8. 8 Application and Implementation
    1. 8.1 Application Information
      1. 8.1.1 Adjustable Device Feedback Resistors
      2. 8.1.2 Recommended Capacitor Types
      3. 8.1.3 Input and Output Capacitor Requirements
      4. 8.1.4 Reverse Current
      5. 8.1.5 Feed-Forward Capacitor (CFF)
      6. 8.1.6 Power Dissipation (PD)
      7. 8.1.7 Estimating Junction Temperature
      8. 8.1.8 Special Consideration for Line Transient
    2. 8.2 Typical Application
      1. 8.2.1 Design Requirements
      2. 8.2.2 Detailed Design Procedure
        1. 8.2.2.1 Transient Response
        2. 8.2.2.2 Selecting Feedback Divider Resistors
        3. 8.2.2.3 Thermal Dissipation
      3. 8.2.3 Application Curve
  9. 9 Power Supply Recommendations
  10. 10Layout
    1. 10.1 Layout Guidelines
    2. 10.2 Layout Examples
  11. 11器件和文档支持
    1. 11.1 器件支持
      1. 11.1.1 器件命名规则
    2. 11.2 文档支持
      1. 11.2.1 相关文档
    3. 11.3 接收文档更新通知
    4. 11.4 社区资源
    5. 11.5 商标
    6. 11.6 静电放电警告
    7. 11.7 Glossary
  12. 12机械、封装和可订购信息

封装选项

请参考 PDF 数据表获取器件具体的封装图。

机械数据 (封装 | 引脚)
  • DRV|6
散热焊盘机械数据 (封装 | 引脚)
订购信息

6.5 Electrical Characteristics

specified at TJ = –40°C to +125°C, VIN = VOUT(nom) + 0.8 V or VIN = 2.4 V (whichever is greater), FB tied to OUT, IOUT = 1 mA, VEN = 2 V, and CIN = 1 μF, COUT = 2.2 μF (unless otherwise noted); typical values are at TJ = 25°C
PARAMETER TEST CONDITIONS MIN TYP MAX UNIT
VUVLO(RISING) UVLO threshold rising VIN rising 1.95 2.15 2.35 V
VUVLO(HYS) UVLO hysteresis 70 mV
VUVLO(FALLING) UVLO threshold falling VIN falling 1.85 2.09 2.25 V
VFB Feedback voltage Adjustable version only 1.24 V
VOUT Output voltage accuracy Adjustable version, VOUT = VFB 1.228 1.24 1.252 V
VOUT Output voltage accuracyaccuracy for fixed output options Fixed output versions –1 1 %
ΔVOUT(ΔVIN) Line regulation(1) (VOUT(nom) + 0.8 V or 2.4 V) ≤ VIN ≤ 18 V –0.1 0.1 %
ΔVOUT(ΔIOUT) Load regulation 1 mA ≤ IOUT ≤ 500 mA –0.5 0.5 %
VDO Dropout voltage(2) IOUT = 100 mA 92 145 mV
IOUT = 250 mA 173 280
IOUT = 500 mA 355 590
ICL Output current limit VOUT = 0.9 × VOUT(nom) 525 717 970 mA
IGND Ground pin current IOUT = 0 mA 2 4.5 µA
IOUT = 1 mA 15
ISHUTDOWN Shutdown current VEN ≤ 0.4 V, VIN = 2.4 V, Iout = 0 mA 325 600 nA
IFB FB pin current 10 nA
IEN EN pin current VEN = 18 V 10 nA
VEN(HI) Enable pin high-level input voltage Device enabled 0.9 V
VEN(LOW) Enable pin low-level input voltage Device disabled 0.4 V
VIT(PG,RISING) PG pin threshold rising RPULLUP = 10 kΩ, VOUT rising,
VIN ≥ VUVLO(RISING) 		93 96.5 %VOUT
VHYS(PG) PG pin hysteresis RPULLUP = 10 kΩ, VOUT falling,
VIN ≥ VUVLO(RISING) 		3 %VOUT
VIT(PG,FALLING) PG pin threshold falling RPULLUP = 10 kΩ, VOUT falling,
VIN ≥ VUVLO(RISING) 		84 90 %VOUT
VOL(PG) PG pin low level output voltage VOUT < VIT(PG,FALLING), IPG-SINK = 500 µA 0.4 V
ILKG(PG) PG pin leakage current VOUT > VIT(PG,RISING), VPG = 18 V 5 300 nA
PSRR Power-supply rejection ratio f = 10 Hz 75 dB
f = 100 Hz 62
f = 1 kHz 52
Vn Output noise voltage BW = 10 Hz to 100 kHz, VOUT = 1.2 V 300 μVRMS
TSD(shutdown) Thermal shutdown temperature Shutdown, temperature increasing 165 °C
TSD(reset) Thermal shutdown reset temperature Reset, temperature decreasing 145 °C
(1) Vout(nom) + 0.8 V or 2.4 V (whichever is greater).
(2) VDO is measured with VIN = 0.97 × VOUT(nom) for fixed output voltage versions. VDO is not measured for fixed output voltage versions when VOUT ≤ 2.5 V. For the adjustable output device, VDO is measured with VFB = 0.97 × VFB(nom).
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