ZHCSFD9B July   2016  – October 2018 TPS61230A

PRODUCTION DATA.  

  1. 1 特性
  2. 2 应用
  3. 3 说明
    1.     Device Images
      1.      典型应用
      2.      效率
  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 Startup
      2. 7.3.2 Enable and Disable
      3. 7.3.3 Under-Voltage Lockout (UVLO)
      4. 7.3.4 Current Limit Operation
      5. 7.3.5 Over Voltage Protection
      6. 7.3.6 Load Disconnect
      7. 7.3.7 Thermal Shutdown
    4. 7.4 Device Functional Modes
      1. 7.4.1 PWM Mode
      2. 7.4.2 PFM Mode
  8. 8 Application and Implementation
    1. 8.1 Application Information
    2. 8.2 Typical Applications
      1. 8.2.1 TPS61230A 2.5-V to 4.5-V Input, 5-V Output Converter
        1. 8.2.1.1 TPS61230A 5-V Output Design Requirements
        2. 8.2.1.2 TPS61230A 5-V Detailed Design Procedure
          1. 8.2.1.2.1 Programming The Output Voltage
          2. 8.2.1.2.2 Inductor and Capacitor Selection
            1. 8.2.1.2.2.1 Inductor Selection
            2. 8.2.1.2.2.2 Output Capacitor Selection
            3. 8.2.1.2.2.3 Input Capacitor Selection
          3. 8.2.1.2.3 Loop Stability, Feed Forward Capacitor
        3. 8.2.1.3 TPS61230A 5-V Output Application Performance Plots
      2. 8.2.2 Systems Example - TPS61230A with Feed Forward Capacitor for Best Transient Response
  9. 9 Power Supply Recommendations
  10. 10Layout
    1. 10.1 Layout Guidelines
    2. 10.2 Layout Example
    3. 10.3 Thermal Considerations
  11. 11器件和文档支持
    1. 11.1 器件支持
      1. 11.1.1 第三方产品免责声明
    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 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

6.5 Electrical Characteristics

TJ = -40 °C to 125 °C and VIN = 3.6 V. Typical values are at TJ = 25 °C, unless otherwise noted.
PARAMETER TEST CONDITIONS MIN TYP MAX UNIT
Power Supply
VIN Input voltage range 2.5 4.5 V
VVIN_UVLO Input under voltage lockout VIN rising 2.5 V
VVIN_HYS VIN UVLO hysteresis 150 mV
IQ_VIN Quiescent current into VIN pin IC enabled, No load , No Switching, VOUT = 5 V, VIN =  4.2 V 20 50 µA
IQ_VOUT Quiescent current into VOUT pin IC enabled, No load, No Switching VOUT = 5 V 25 55 µA
ISD Shutdown current into VIN IC disabled, TJ < 85°C, VIN = 4.2 V 0.2 1 µA
Output
VOUT Output voltage range 2.5 5.5 V
VFB_PWM Feedback voltage PWM mode 1.171 1.195 1.219 V
VFB_PFM Feedback voltage PFM mode 101.2 % VFB
VOVP Output overvoltage protection threshold 5.7 5.8 5.99 V
ILKG_FB Leakage current into FB pin VFB = 1.2 V 20 nA
Power Switch
RDS(on) High-side MOSFET on resistance VIN = 3.6 V, VOUT = 5 V, CBST = 10 nF, 18 35 mΩ
RDS(on) Low-side MOSFET on resistance VIN = 3.6 V, VOUT = 5 V, CBST = 10 nF 21 36 mΩ
fsw Switching frequency VIN = 3.6 V, VOUT = 5 V, PWM Operation 805 1150 1495 kHz
tON_min Minimum on time 180 ns
ILIM_PRE Pre-charge mode and short circuit current limit (DC charge mode) Linear mode, VOUT = 2.5 V 1.02 A
Linear mode,  VOUT = 0 V 0.06 0.6 A
ILIMIT Switching valley current limit 4.8 6.3 7.8 A
tstartup Soft Start time (boost) VIN = 3.6 V, VOUT = 5 V 0.3 1.05 1.9 ms
TSD Thermal shutdown threshold TJ rising 160 °C
Thermal shutdown hysteresis TJ falling below TSD 10 °C
Protection
THC_OFF Time for the hiccup off time VIN = 3.6 V 23 ms
THC_ON Time for the hiccup on time VIN = 3.6 V 3.5 ms
Logic Interface
VEN_H EN Logic high threshold 1.0 V
VEN_L EN Logic low threshold 0.4 V
ILKG_EN EN pin input leakage current Connected to 3.6V VIN 0.1 0.3 µA