Datasheet
Table Of Contents
- FEATURES
- APPLICATIONS
- DESCRIPTION
- ABSOLUTE MAXIMUM RATINGS
- THERMAL INFORMATION
- RECOMMENDED OPERATING CONDITIONS
- ELECTRICAL CHARACTERISTICS
- DEVICE INFORMATION
- OVERVIEW
- DETAILED DESCRIPTION
- PWM Operation
- PWM Frequency and Adaptive On-Time Control
- Auto-Skip Eco-Mode Controlsection title From: Light Load Eco-Mode Control To: Auto-Skip Eco-Mode ControlChanged section title From: Light Load Mode Control To: Light Load Eco-Mode Control
- Soft Start and Pre-Biased Soft Start
- Power Good
- Output Discharge Control
- Current Protection
- Over/Under Voltage Protection
- UVLO Protection
- Thermal Shutdown
- TYPICAL CHARACTERISTICS
- Revision History

V -50mV/div
OUT
I -1 A/div
OUT
100 s/divm
1
1.025
1.05
1.075
1.1
0 5 10 15 20
V -InputVoltage-V
I
V -OutputVoltage-V
O
I =10mA
O
I =1 A
O
EN-10V/div
V -0.5V/div
OUT
PG-5V/div
400 s/divm
40
50
60
70
80
90
100
0 0.5 1 1.5 2
I -OutputCurrent- A
O
Efficiency-%
V =3.3V
O
V =1.8V
O
V =2.5V
O
TPS54226
SLVSA14E –OCTOBER 2009– REVISED JULY 2011
www.ti.com
TYPICAL CHARACTERISTICS (continued)
Figure 5. 1.05-V OUTPUT VOLTAGE vs INPUT VOLTAGE Figure 6. 1.05 V 50 mA TO 2A LOAD
TRANSIENT RESPONSE
Figure 7. START-UP WAVE FORM Figure 8. EFFICIENCY vs OUTPUT CURRENT
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Product Folder Link(s): TPS54226