Datasheet
Table Of Contents
- FEATURES
- Applications
- DESCRIPTION
- Absolute Maximum Ratings
- Electrical Characteristics
- Typical Performance Characteristics
- Block Diagram
- Theory of Operation
- Application Hints
- SELECTING THE EXTERNAL CAPACITORS
- SELECTING THE OUTPUT CAPACITOR
- SELECTING THE INPUT CAPACITOR
- FEED-FORWARD COMPENSATION
- SELECTING DIODES
- LAYOUT HINTS
- SETTING THE OUTPUT VOLTAGE
- SWITCHING FREQUENCY
- DUTY CYCLE
- INDUCTANCE VALUE
- MAXIMUM SWITCH CURRENT
- CALCULATING LOAD CURRENT
- DESIGN PARAMETERS VSW AND ISW
- THERMAL CONSIDERATIONS
- MINIMUM INDUCTANCE
- INDUCTOR SUPPLIERS
- SHUTDOWN PIN OPERATION
- Application Hints
- Revision History
LOAD CURRENT (mA)
EFFICIENCY (%)
0
200
400
600
800
1000
0
10
20
30
40
50
60
70
80
90
100
V
IN
= 10V
V
IN
= 5V
V
IN
= 3.3V
LM2733
www.ti.com
SNVS209E –NOVEMBER 2002–REVISED APRIL 2013
Typical Performance Characteristics (continued)
Unless otherwise specified: V
IN
= 5V, SHDN pin is tied to V
IN
.
Feedback Voltage vs Temperature R
DS
(ON) vs Temperature
Figure 8. Figure 9.
Current Limit vs Temperature R
DS(ON)
vs V
IN
Figure 10. Figure 11.
Efficiency vs Load Current (V
OUT
= 12V) - "X" Efficiency vs Load Current (V
OUT
= 15V) - "X"
Figure 12. Figure 13.
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