Datasheet
Table Of Contents
- FEATURES
- DESCRIPTION
- FUNCTIONAL BLOCK DIAGRAMS
- DETAILED DESCRIPTION
- ABSOLUTE MAXIMUM RATINGS
- DISSIPATION RATING TABLE
- RECOMMENDED OPERATING CONDITIONS
- ELECTRICAL CHARACTERISTICS OVER RECOMMENDED OPERATING JUNCTION TEMPERATURE RANGE
- ENABLE INPUT ENx OR ENx
- CURRENT LIMIT
- SUPPLY CURRENT (TPS2045A, TPS2055A)
- SUPPLY CURRENT (TPS2046A, TPS2056A)
- SUPPLY CURRENT (TPS2047A, TPS2057A)
- SUPPLY CURRENT (TPS2048A, TPS2058A)
- UNDERVOLTAGE LOCKOUT
- OVERCURRENT OC
- PARAMETER MEASUREMENT INFORMATION
- TYPICAL CHARACTERISTICS
- APPLICATION INFORMATION
- POWER-SUPPLY CONSIDERATIONS
- OVERCURRENT
- OC RESPONSE
- POWER DISSIPATION AND JUNCTION TEMPERATURE
- THERMAL PROTECTION
- UNDERVOLTAGE LOCKOUT (UVLO)
- UNIVERSAL SERIAL BUS (USB) APPLICATIONS
- HOST/SELF-POWERED AND BUS-POWERED HUBS
- LOW-POWER BUS-POWERED FUNCTIONS AND HIGH-POWER BUS-POWERED FUNCTIONS
- USB POWER-DISTRIBUTION REQUIREMENTS
- GENERIC HOT-PLUG APPLICATIONS (see )

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40
50
60
70
80
90
100
−40 0 25 85 125
V
I(IN)
= 5.5 V
V
I(IN)
= 5 V
V
I(IN)
= 4.5 V
V
I(IN)
= 3.3 V
V
I(IN)
= 2.7 V
− Supply Current, Output Enabled −
I
I(IN)
Aµ
T
J
− Junction Temperature − °C
V
I(IN)
= 4.5 V
0
20
40
60
80
100
120
140
160
−40 0 25 85 125
V
I(IN)
= 5.5 V
V
I(IN)
= 5 V
V
I(IN)
= 3.3 V
V
I(IN)
= 2.7 V
− Supply Current, Output Disabled − nA
I
I(IN)
T
J
− Junction Temperature − °C
0
20
40
60
80
100
120
140
160
0 25 85 125
V
I(IN)
= 3 V
V
I(IN)
= 4.5 V
V
I(IN)
= 5 V
V
I(IN)
= 2.7 V
V
I(IN)
= 3.3 V
− Static Drain-Source On-State Resistance − m
Ω
r
DS(on)
T
J
− Junction Temperature − °C
0
10
20
30
40
50
60
70
100 200 300 400 500
T
A
= 25°C
V
I(IN)
= 2.7 V
V
I(IN)
= 3.3 V
V
I(IN)
= 4.5 V
V
I(IN)
= 5 V
− Input-to-Output Voltage − mVV
I(IN)
−
V
O(OUT)
I
L
− Load Current − A
TPS2045A , , TPS2046A
TPS2047A , TPS2048A , TPS2055A
TPS2056A , TPS2057A , TPS2058A
SLVS251C – SEPTEMBER 2000 – REVISED JANUARY 2008
TYPICAL CHARACTERISTICS (continued)
SUPPLY CURRENT, OUTPUT ENABLED SUPPLY CURRENT, OUTPUT DISABLED
vs vs
JUNCTION TEMPERATURE JUNCTION TEMPERATURE
Figure 16. Figure 17.
STATIC DRAIN-SOURCE ON-STATE RESISTANCE INPUT-TO-OUTPUT VOLTAGE
vs vs
JUNCTION TEMPERATURE LOAD CURRENT
Figure 18. Figure 19.
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Product Folder Link(s): TPS2045A TPS2046A TPS2047A TPS2048A TPS2055A TPS2056A TPS2057A TPS2058A