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TPS62250DRVT Fiches technique(PDF) 6 Page - Texas Instruments

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No de pièce TPS62250DRVT
Description  Peak Current Limited Step Down Converter for USB Applications
Download  30 Pages
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Fabricant  TI1 [Texas Instruments]
Site Internet  http://www.ti.com
Logo TI1 - Texas Instruments

TPS62250DRVT Fiches technique(HTML) 6 Page - Texas Instruments

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TYPICAL CHARACTERISTICS
TPS62250
SLVS842 – SEPTEMBER 2008.......................................................................................................................................................................................... www.ti.com
Table of Graphs
FIGURE
Output Current VOUT = 1.8 V, Power Save Mode, MODE = GND
Figure 1
Output Current VOUT = 1.8 V, PWM Mode, MODE = VIN
Figure 2
Output Current VOUT = 3.3 V, PWM Mode, MODE = VIN
Figure 3
η
Efficiency
Output Current VOUT = 3.3 V, Power Save Mode, MODE = GND
Figure 4
Output Current
Figure 5
Output Current
Figure 6
at 25°C, VOUT = 1.8 V, Power Save Mode, MODE = GND
Figure 7
at –40°C, VOUT = 1.8 V, Power Save Mode, MODE = GND
Figure 8
at 85°C, VOUT = 1.8 V, Power Save Mode, MODE = GND
Figure 9
Output Voltage Accuracy
at 25°C, VOUT = 1.8 V, PWM Mode, MODE = VIN
Figure 10
at –40°C, VOUT = 1.8 V, PWM Mode, MODE = VIN
Figure 11
at 85°C, VOUT = 1.8 V, PWM Mode, MODE = VIN
Figure 12
Typical Operation
PWM Mode, VOUT = 1.8 V
Figure 13
MODE Pin Transition From PFM to Forced PWM Mode at light load
Figure 14
Mode Transition
MODE Pin Transition From Forced PWM to PFM Mode at light load
Figure 15
Start-up Timing
Figure 16
Forced PWM Mode , VOUT = 1.5 V, 50 mA to 200 mA
Figure 17
Forced PWM Mode , VOUT = 1.5 V, 200 mA to 400 mA
Figure 18
PFM Mode to PWM Mode, VOUT = 1.5 V, 150 µA to 400 mA
Figure 19
PWM Mode to PFM Mode, VOUT = 1.5 V, 400 mA to 150 µA
Figure 20
Load Transient
PFM Mode, VOUT = 1.5 V, 1.5 mA to 50 mA
Figure 21
PFM Mode, VOUT = 1.5 V, 50 mA to 1.5 mA
Figure 22
PFM Mode to PWM Mode, VOUT = 1.8 V, 50 mA to 250 mA
Figure 23
PFM Mode to PWM Mode, VOUT = 1.5 V, 50 mA to 400 mA
Figure 24
PWM Mode to PFM Mode, VOUT = 1.5 V, 400 mA to 50 mA
Figure 25
PFM Mode, VOUT = 1.8 V, 50 mA
Figure 26
Line Transient
PFM Mode, VOUT = 1.8 V, 250 mA
Figure 27
PFM VOUT Ripple, VOUT = 1.8 V, 10 mA, L = 2.2µH, COUT = 10µF
Figure 28
Typical Operation
PFM VOUT Ripple, VOUT = 1.8 V, 10 mA, L = 4.7µH, COUT = 10µF
Figure 29
Shutdown Current into VIN
vs Input Voltage, (TA = 85°C, TA = 25°C, TA = -40°C)
Figure 30
Quiescent Current
vs Input Voltage, (TA = 85°C, TA = 25°C, TA = -40°C)
Figure 31
Figure 32
Static Drain Source On-State
vs Input Voltage, (TA = 85°C, TA = 25°C, TA = -40°C)
Resistance
Figure 33
6
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