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MIC2875 Datasheet(PDF) 9 Page - Microchip Technology

Part # MIC2875
Description  4.8A ISW, Synchronous Boost Regulator with Bi-Directional Load Disconnect
PDF  24 Pages
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Manufacturer  MICROCHIP [Microchip Technology]
Direct Link  http://www.microchip.com
Logo MICROCHIP - Microchip Technology

MIC2875 Datasheet(HTML) 9 Page - Microchip Technology

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 2015 Microchip Technology Inc.
DS20005549A-page 9
MIC2875
.
FIGURE 2-13:
Line Transient (3.5V to
2.5V).
.
FIGURE 2-14:
Line Transient (2.5V to
5.5V).
FIGURE 2-15:
Line Transient (5.5V to
2.5V).
FIGURE 2-16:
Output Ripple (Pulse Skipping
Mode).
FIGURE 2-17:
Output Ripple (PWM Mode).
FIGURE 2-18:
Soft–Start (Boost Mode).
Time (100μs/div)
I
L
(2A/div)
V
IN
(2V/div)
V
OUT
(5V/div)
V
OUT
(500mV/div)
(AC-COUPLED)
V
IN = 3.5V TO 2.5V, VOUT = 5.0V
L = 1μH, I
OUT = 1A
Time (100μs/div)
I
L
(5A/div)
V
IN
(2V/div)
V
OUT
(5V/div)
V
OUT
(2V/div)
(AC-COUPLED)
V
IN = 2.5V TO 5.5V
V
OUT = 5.0V
L = 1μH
I
OUT = 1A
Time (100μs/div)
I
L
(5A/div)
V
IN
(2V/div)
V
OUT
(5V/div)
V
OUT
(2V/div)
(AC-COUPLED)
V
IN = 5.5V TO 2.5V
V
OUT = 5.0V, L = 1μH
I
OUT = 1A
PULSE SKIPPING MODE
V
IN = 3.5V, VOUT = 5.0V, IOUT = 50mA
Time (4μs/div)
I
L
(200mA/div)
V
SW
(2V/div)
V
OUT
(50mV/div)
(AC-COUPLED)
PWM MODE
V
IN = 3.5V, VOUT = 5.0V, IOUT = 1.2A
Time (200ns/div)
I
L
(1A/div)
V
SW
(5V/div)
V
OUT
(50mV/div)
(AC-COUPLED)
BOOST MODE
V
IN = 3.5V
V
OUT = 5.0V
I
OUT = 500mA
Time (400μs/div)
I
L
(1A/div)
V
EN
(2V/div)
V
/PG
(2V/div)
V
OUT
(5V/div)



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