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LP5550 Scheda tecnica(PDF) 11 Page - Texas Instruments

Il numero della parte LP5550
Spiegazioni elettronici  LP5550 PowerWise??Technology Compliant Energy Management Unit
PDF  28 Pages
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Produttore elettronici  TI1 [Texas Instruments]
Homepage  http://www.ti.com
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LP5550 Scheda tecnica(HTML) 11 Page - Texas Instruments

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20 Ps/DIV
VO3
SCLK
200 mV/DIV
2V/DIV
200 mV/DIV
VOSW
20 Ps/DIV
VO3
SCLK
200 mV/DIV
2V/DIV
VOSW
200 mV/DIV
VOUT (50 mV/Div)
ILOAD = 300 mA
TIME (100 Ps/DIV)
ILOAD = 100 mA
Inductor Current = 200 mA/
Div
VOUT (50 mV/Div)
ILOAD = 70 mA
TIME (100 Ps/DIV)
ILOAD = 0 mA
Inductor Current = 200 mA/Div
3.
0
3.
5
4.
0
4.
5
5.
0
5.
5
1.10
M
1.07
M
1.05
M
1.02
M
996.00
k
970.00
k
T
A
=
85°C
T
A
=
25°C
T
A
= -
40°C
VIN (V)
VOUT (50 mV/Div)
ILOAD = 0 mA
TIME (100 Ps/DIV)
ILOAD = 280 mA
LP5550
www.ti.com
SNVS378G – OCTOBER 2005 – REVISED APRIL 2013
Typical Performance Characteristics (continued)
Unless otherwise stated: VIN=3.6V
Load Transient Response
Switching Frequency vs. VIN
Switcher, Automatic PWM/PFM Transition
Figure 17.
Figure 18.
Load Trainsient Response
Load Transient Response
Switcher, PWM only
Switcher, PFM only
Figure 19.
Figure 20.
VOUT Transient Response
VOUT Transient Response
Min to Max Transient
Max to Min Transient
Figure 21.
Figure 22.
Copyright © 2005–2013, Texas Instruments Incorporated
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