Datasheet
Table Of Contents
- FEATURES
- APPLICATIONS
- DESCRIPTION
- ABSOLUTE MAXIMUM RATINGS
- DISSIPATION RATINGS
- RECOMMENDED OPERATING CONDITIONS
- ELECTRICAL CHARACTERISTICS
- DEVICE INFORMATION
- TYPICAL CHARACTERISTICS
- APPLICATION INFORMATION
- PWM Operations
- Adaptive On-Time Control and PWM Frequency
- Loop Compensation
- Ramp Signal
- Light Load Condition in Auto-Skip Operation
- Out-of-Audio™ Light-Load Operation
- Enable and Soft Start
- VREG5/VREG3 Linear Regulators
- VREG5 Switch Over
- VREG3 Switch Over
- Powergood
- Output Discharge Control
- Low-Side Driver
- High-Side Driver
- Current Protection
- Overvoltage and Undervoltage Protection
- UVLO Protection
- Thermal Shutdown
- External Parts Selection
- Layout Considerations
- Application Circuit
- Revision History

VIN SUPPLY CURRENT2
vs
JUNCTION TEMPERATURE
0
1
2
3
4
5
6
7
8
9
-50 0 50 100 150
T
J
- Junction Temperature - °C
I
VIN2
- VIN Supply Current2 - mA
VIN SUPPLY CURRENT2
vs
INPUT VOLTAGE
0
1
2
3
4
5
6
7
8
9
5 10 15 20 25
V
IN
- Input Voltage - V
I
VIN2
- VIN Supply Current2 - mA
VIN SUPPLY CURRENT1
vs
INPUT VOLTAGE
0
100
200
300
400
500
600
700
800
5 10 15 20 25
V
IN
- Input Voltage - V
I
VIN1
- VIN Supply Current1 - mA
VIN SUPPLY CURRENT1
vs
JUNCTION TEMPERATURE
0
100
200
300
400
500
600
700
800
-50 0 50 100 150
T
J
- Junction Temperature - °C
I
VIN1
- VIN Supply Current1 - mA
TPS51123
SLUS890E –DECEMBER 2008–REVISED JANUARY 2013
www.ti.com
TYPICAL CHARACTERISTICS
Figure 1. Figure 2.
Figure 3. Figure 4.
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