ZHCSQ69B june   2022  – august 2023 TPS7A15

PRODUCTION DATA  

  1.   1
  2. 1 特性
  3. 2 应用
  4. 3 说明
  5. 4 Revision History
  6. 5 Pin Configuration and Functions
  7. 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 Switching Characteristics
    7. 6.7 Typical Characteristics
  8. 7 Detailed Description
    1. 7.1 Overview
    2. 7.2 Functional Block Diagram
    3. 7.3 Feature Description
      1. 7.3.1 Excellent Transient Response
      2. 7.3.2 Active Overshoot Pulldown Circuitry
      3. 7.3.3 Global Undervoltage Lockout (UVLO)
      4. 7.3.4 Enable Input
      5. 7.3.5 Internal Foldback Current Limit
      6. 7.3.6 Active Discharge
      7. 7.3.7 Thermal Shutdown
    4. 7.4 Device Functional Modes
      1. 7.4.1 Normal Mode
      2. 7.4.2 Dropout Mode
      3. 7.4.3 Disabled Mode
  9. 8 Application and Implementation
    1. 8.1 Application Information
      1. 8.1.1  Recommended Capacitor Types
      2. 8.1.2  Input, Output, and Bias Capacitor Requirements
      3. 8.1.3  Dropout Voltage
      4. 8.1.4  Behavior During Transition From Dropout Into Regulation
      5. 8.1.5  Device Enable Sequencing Requirement
      6. 8.1.6  Load Transient Response
      7. 8.1.7  Undervoltage Lockout Circuit Operation
      8. 8.1.8  Power Dissipation (PD)
      9. 8.1.9  Estimating Junction Temperature
      10. 8.1.10 Recommended Area for Continuous Operation
    2. 8.2 Typical Application
      1. 8.2.1 Design Requirements
      2. 8.2.2 Detailed Design Procedure
      3. 8.2.3 Application Curve
    3. 8.3 Power Supply Recommendations
    4. 8.4 Layout
      1. 8.4.1 Layout Guidelines
      2. 8.4.2 Layout Examples
  10. 9 Device and Documentation Support
    1. 9.1 Device Support
      1. 9.1.1 Development Support
        1. 9.1.1.1 Evaluation Module
      2. 9.1.2 Device Nomenclature
    2. 9.2 Documentation Support
      1. 9.2.1 Related Documentation
    3. 9.3 接收文档更新通知
    4. 9.4 支持资源
    5. 9.5 Trademarks
    6. 9.6 静电放电警告
    7. 9.7 术语表
  11. 10Mechanical, Packaging, and Orderable Information
    1. 10.1 Mechanical Data

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机械数据 (封装 | 引脚)
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订购信息

6.5 Electrical Characteristics

specified at TJ = –40°C to +125°C, VIN = VOUT(NOM) + 0.1 V, VBIAS = greater of 2.2 V or VOUT(NOM) + 1.4 V, IOUT = 1 mA, VEN = 1.0 V, CIN = 1 μF, COUT = 1 μF, and CBIAS = 0.1 μF, unless otherwise noted; all typical values are at TJ = 25°C
PARAMETER TEST CONDITIONS MIN TYP MAX UNIT
VOUT  Accuracy over temperature VOUT(NOM) + 0.1 V ≤ VIN ≤ 2.2 V,
greater of 2.2 V or VOUT(NOM) + 1.4 V ≤ VBIAS ≤ 5.5 V,
1 mA ≤ IOUT ≤ 400 mA		 TJ = –40°C to +85°C –1.1 1 %
TJ = –40°C to +125°C, YCK package –2.5 1
TJ = –40°C to +125°C, DRV package –2 1
ΔVOUT / ΔVIN VIN line regulation  VOUT(NOM) + 0.1 V ≤ VIN ≤ 2.2 V –2.5 0.013 2.5 mV
ΔVOUT / ΔVBIAS VBIAS line regulation VOUT(NOM) + 1.4 V ≤ VBIAS ≤ 5.5 V –2.5 0.02 2.5 mV
ΔVOUT / ΔIOUT Load regulation 1 mA ≤ IOUT ≤ 400 mA 0.49 %/A
IQ(BIAS) Bias pin current  IOUT = 0 mA TJ = –40°C to +85°C 30 µA
TJ = –40°C to +125°C 41
IOUT = 400 mA TJ = –40°C to +125°C 6.5 mA
IQ(IN) Input pin current(1) IOUT = 0 mA TJ = –40°C to +85°C 5.7 µA
TJ = –40°C to +125°C 17
IGND Ground pin current(1) IOUT = 400 mA 320 500 µA
ISHDN(BIAS) VBIAS  shutdown current VIN = 2.2 V, VBIAS = 5.5 V, VEN ≤ 0.2 V 0.264 12 µA
ISHDN(IN) VIN  shutdown current VIN = 1.8 V, VBIAS = 5.5 V, VEN ≤ 0.2 V,
TJ = –40°C to +85°C		 0.5 5.7 µA
VIN = 1.8 V, VBIAS = 5.5 V, VEN ≤ 0.2 V 0.5 22
ICL Output current limit VOUT = 0.95 × VOUT(NOM) 450 800 1100 mA
ISC Short-circuit current limit VOUT = 0 V 270 mA
VDO(IN) VIN dropout voltage(2) VIN = 0.95 × VOUT(nom), IOUT = 400 mA, VOUT ≥ 0.6 V, DRV package 31 80 mV
VIN = 0.95 × VOUT(nom), IOUT = 400 mA, VOUT ≥ 0.6 V, YCK package 31 80
VDO(BIAS) VBIAS dropout voltage(2) VBIAS = greater of 1.7 V or VOUT(nom) + 0.6 V,
VSENSE = 0.95 × VOUT(nom), IOUT = 400 mA, DRV package		 1.3 V
VBIAS = greater of 1.7 V or VOUT(nom) + 0.6 V,
VSENSE = 0.95 × VOUT(nom), IOUT = 400 mA, YCK package		 1
VIN  PSRR VIN  power-supply rejection ratio f = 100 Hz IOUT = 3 mA 90 dB
IOUT = 400 mA 71
f = 1 kHz IOUT = 3 mA 84
IOUT = 400 mA 73
f = 10 kHz IOUT = 3 mA 70
IOUT = 400 mA 58
f = 100 kHz IOUT = 3 mA 53
IOUT = 400 mA 40
f = 1 MHz IOUT = 3 mA 65
IOUT = 400 mA 23
f = 1 MHz,
VIN = VOUT + 150 mV		 IOUT = 3 mA 65
IOUT = 400 mA 40
VBIAS PSRR VBIAS power-supply rejection ratio f = 1 kHz, IOUT = 400 mA 65 dB
f = 100 kHz 47
f = 1 MHz 26
Vn Output voltage noise Bandwidth = 10 Hz to 100 kHz,
VOUT = 0.8 V, IOUT = 400 mA		 7.2 µVRMS
VUVLO(BIAS) Bias supply UVLO VBIAS rising 1.15 1.42 1.7 V
VBIAS falling 1.0 1.3 1.64
VUVLO_HYST(BIAS) Bias supply hysteresis VBIAS hysteresis 103 mV
VUVLO(IN) Input supply UVLO  VIN rising 584 603 623 mV
VIN falling 530 552 566
VUVLO_HYST(IN) Input supply hysteresis VIN hysteresis 55 mV
tSTR Start-up time(3)
 		 200 µs
VHI(EN) EN pin logic high voltage 0.6 V
VLO(EN) EN pin logic low voltage 0.25
IEN EN pin current EN = 5.5 V –20 10 30 nA
RPULLDOWN Pulldown resistor VIN = 0.9 V, VOUT(nom) = 0.8 V, VBIAS = 1 V, VEN = 0 V, P version only 36 Ω
TSD Thermal shutdown temperature Shutdown, temperature rising 165 °C
Reset, temperature falling 140
(1) This current flowing from VIN to GND.
(2) Dropout is not measured for VOUT < 0.6 V. VBIAS must be 2.2 V or greater for specified dropout value. 
(3) Startup time = time from EN assertion to 0.95 × VOUT(NOM).