SNVS487E December 2006 – January 2015 LM27313 , LM27313-Q1
PRODUCTION DATA.
- 1 Features
- 2 Applications
- 3 Description
- 4 Revision History
- 5 Pin Configuration and Functions
- 6 Specifications
- 7 Detailed Description
-
8 Application and Implementation
- 8.1 Application Information
- 8.2
Typical Applications
- 8.2.1
Application Circuit VIN=5.0 V, VOUT=12.0 V, Iload=250 mA
- 8.2.1.1 Design Requirements
- 8.2.1.2
Detailed Design Procedure
- 8.2.1.2.1 Selecting the External Capacitors
- 8.2.1.2.2 Selecting the Output Capacitor
- 8.2.1.2.3 Selecting the Input Capacitor
- 8.2.1.2.4 Feed-Forward Compensation
- 8.2.1.2.5 Selecting Diodes
- 8.2.1.2.6 Setting the Output Voltage
- 8.2.1.2.7 Duty Cycle
- 8.2.1.2.8 Inductance Value
- 8.2.1.2.9 Maximum Switch Current
- 8.2.1.2.10 Calculating Load Current
- 8.2.1.2.11 Design Parameters VSW and ISW
- 8.2.1.2.12 Minimum Inductance
- 8.2.1.2.13 Inductor Suppliers
- 8.2.1.2.14 Shutdown Pin Operation
- 8.2.1.3 Application Curves
- 8.2.2 Application Circuit VIN=5.0V, VOUT=20.0V, Iload=150mA
- 8.2.1
Application Circuit VIN=5.0 V, VOUT=12.0 V, Iload=250 mA
- 9 Power Supply Recommendations
- 10Layout
- 11Device and Documentation Support
- 12Mechanical, Packaging, and Orderable Information
封裝選項(xiàng)
機(jī)械數(shù)據(jù) (封裝 | 引腳)
- DBV|5
散熱焊盤機(jī)械數(shù)據(jù) (封裝 | 引腳)
訂購信息
5 Pin Configuration and Functions
SOT-23 Package
5-Pin
(Top View)
Pin Functions
| PIN | I/O(1) | DESCRIPTION | |
|---|---|---|---|
| NO. | NAME | ||
| 1 | SW | O | Drain of the internal FET switch. |
| 2 | GND | G | Analog and power ground. |
| 3 | FB | I | Feedback point that connects to external resistive divider to set VOUT. |
| 4 | SHDN | I | Shutdown control input. Connect to VIN if this feature is not used. |
| 5 | VIN | I/P | Analog and power input. |
(1) I: Input Pin, O: Output Pin, P: Power Pin, G: Ground Pin