ZHCSOT7 November   2021 TPS7A44

PRODUCTION DATA  

  1. 1 特性
  2. 2 应用
  3. 3 说明
  4. 4 Revision History
  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 MID_OUT Voltage Selection
      2. 7.3.2 Precision Enable
      3. 7.3.3 Dropout Voltage
      4. 7.3.4 Current Limit
      5. 7.3.5 Thermal Shutdown
      6. 7.3.6 Power Good
    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 MID_OUT Voltage Setting
      2. 8.1.2 Adjustable Device Feedback Resistors
      3. 8.1.3 Recommended Capacitor Types
      4. 8.1.4 Input and Output Capacitor Requirements
      5. 8.1.5 Power Dissipation (PD)
      6. 8.1.6 Estimating Junction Temperature
    2. 8.2 Typical Application
      1. 8.2.1 Design Requirements
      2. 8.2.2 Detailed Design Procedure
      3. 8.2.3 Application Curves
  9. 9 Power Supply Recommendations
  10. 10Layout
    1. 10.1 Layout Guidelines
    2. 10.2 Layout Examples
  11. 11Device and Documentation Support
    1. 11.1 Device Support
      1. 11.1.1 Development Support
        1. 11.1.1.1 Evaluation Modules
        2. 11.1.1.2 Spice Models
      2. 11.1.2 Device Nomenclature
    2. 11.2 Documentation Support
      1. 11.2.1 Related Documentation
    3. 11.3 接收文档更新通知
    4. 11.4 支持资源
    5. 11.5 Trademarks
    6. 11.6 Electrostatic Discharge Caution
    7. 11.7 术语表
  12. 12Mechanical, Packaging, and Orderable Information

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

5 Pin Configuration and Functions

Figure 5-1 DGQ Package (Adjustable),
10-Pin HVSSOP(Top View)
Figure 5-2 DGQ Package (Fixed),10-Pin HVSSOP(Top View)
Table 5-1 Pin Functions
PINTYPEDESCRIPTION
NAMEDGQ
(Adjustable)		DGQ
(Fixed)
EN66InputPrecision enable pin. Driving this pin higher than VEN(HI) enables the device. Driving this pin lower than VEN(LOW) disables the device. This pin can be left floating to enable the device because the device features an internal pullup current source. If this pin is tied to the IN pin then the input voltage must not exceed 18 V; see the Section 6.3 table.
FB2—InputFeedback pin. Input to the control-loop error amplifier for the (OUT) output. This pin is used to set the output voltage of the device with the use of external resistors. For adjustable-voltage version devices only. This pin must not be left floating.
GND55—Ground pin.
IN1010InputInput pin. For best transient response and to minimize input impedance, use the recommended value or larger ceramic capacitor from IN to ground; see the Section 6.3 table. Place the input capacitor as close to the IN and GND pins of the device as possible.
MID_OUT88OutputMID output pin. A capacitor is required from MID_OUT to ground for stability. For best transient response, use the nominal recommended value or larger capacitor from MID_OUT to ground. Follow the recommended capacitor value as listed in the Section 6.3 table. Place the MID output capacitor as close to the MID_OUT and GND pins of the device as possible.
MVSEL144InputMID_OUT voltage-select pin. The MVSEL1 pin and MVSEL2 pin are used to set the MID_OUT voltage; see Table 8-1 for details on how to set the MID_OUT voltage using these pins. Do not float this pin, instead tie this pin to GND if not used to set VMID_OUT.
MVSEL277InputMID_OUT voltage-select pin. The MVSEL2 pin and MVSEL1 pin are used to set the MID_OUT voltage; see Table 8-1 for details on how to set the MID_OUT voltage using these pins. Do not float this pin, instead tie this pin to GND if not used to set VMID_OUT.
NC99—No internal connection. This pin must be left floating to observe high voltage clearance between the IN and MID_OUT pins.
NC—2—No internal connection. This pin can be left floating or tied to the GND plane to improve thermal performance.
OUT11OutputOutput pin. A capacitor is required from OUT to ground for stability. For best transient response, use the nominal recommended value or larger capacitor from OUT to ground. Follow the recommended capacitor value as listed in the Section 6.3 table. Place the output capacitor as close to the OUT and GND pins of the device as possible.
PG33OutputPower-good pin. An open-drain output indicates when the output voltage reaches VIT(PG, RISING). If not used, this pin can be left floating or tied to the GND plane to improve thermal performance.
Thermal padPadPad—Exposed pad of the package. Connect this pad to ground or leave floating. Connect the thermal pad to a large-area GND plane for improved thermal performance.
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