SNVS334F January 2005 – January 2016 LM2734Z , LM2734Z-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
LM2734Z Design Example 1
- 8.2.1.1 Design Requirements
- 8.2.1.2
Detailed Design Procedure
- 8.2.1.2.1 Inductor Selection
- 8.2.1.2.2 Input Capacitor
- 8.2.1.2.3 Output Capacitor
- 8.2.1.2.4 Catch Diode
- 8.2.1.2.5 Boost Diode
- 8.2.1.2.6 Boost Capacitor
- 8.2.1.2.7 Output Voltage
- 8.2.1.2.8 Calculating Efficiency, and Junction Temperature
- 8.2.1.2.9 Calculating the LM2734Z Junction Temperature
- 8.2.1.2.10 WSON Package
- 8.2.1.2.11 Package Selection
- 8.2.1.3 Application Curve
- 8.2.2 LM2734Z Design Example 2
- 8.2.3 LM2734Z Design Example 3
- 8.2.4 LM2734Z Design Example 4
- 8.2.5 LM2734Z Design Example 5
- 8.2.1
LM2734Z Design Example 1
- 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)
散熱焊盤機(jī)械數(shù)據(jù) (封裝 | 引腳)
訂購(gòu)信息
5 Pin Configuration and Functions
DDC Package
6-Pin SOT
Top View
NGG Package
6-Pin WSON
Top View
Pin Functions
| PIN | TYPE(1) | DESCRIPTION | ||
|---|---|---|---|---|
| NAME | SOT | WSON | ||
| BOOST | 1 | 3 | I | Boost voltage that drives the internal NMOS control switch. A bootstrap capacitor is connected between the BOOST and SW pins. |
| DAP | — | — | P | The die attach pad is internally connected to GND. |
| EN | 4 | 6 | I | Enable control input. Logic high enables operation. Do not allow this pin to float or be greater than VIN + 0.3 V. |
| FB | 3 | 1 | I | Feedback pin. Connect FB to the external resistor divider to set output voltage. |
| GND | 2 | 2 | P | Signal and Power ground pin. Place the bottom resistor of the feedback network as close as possible to this pin for accurate regulation. |
| SW | 6 | 4 | O | Output switch. Connects to the inductor, catch diode, and bootstrap capacitor. |
| VIN | 5 | 5 | P | Input supply voltage. Connect a bypass capacitor to this pin. |
(1) I –Input, O – Output, P – Power