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| MIC2875 Datasheet, PDF (9/24 Pages) Microchip Technology – 4.8A ISW, Synchronous Boost Regulator with Bi-Directional Load Disconnect | |||
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VIN
(2V/div)
VOUT
(500mV/div)
(AC-COUPLED)
VOUT
(5V/div)
IL
(2A/div)
FIGURE 2-13:
2.5V).
.
VIN = 3.5V TO 2.5V, VOUT = 5.0V
L = 1μH, IOUT = 1A
Time (100μs/div)
Line Transient (3.5V to
VIN
(2V/div)
VOUT
(2V/div)
(AC-COUPLED)
VOUT
(5V/div)
IL
(5A/div)
FIGURE 2-14:
5.5V).
VIN = 2.5V TO 5.5V
VOUT = 5.0V
L = 1μH
IOUT = 1A
Time (100μs/div)
Line Transient (2.5V to
VIN
(2V/div)
VOUT
(2V/div)
(AC-COUPLED)
VOUT
(5V/div)
IL
(5A/div)
FIGURE 2-15:
2.5V).
VIN = 5.5V TO 2.5V
VOUT = 5.0V, L = 1μH
IOUT = 1A
Time (100μs/div)
Line Transient (5.5V to
MIC2875
VSW
(2V/div)
VOUT
(50mV/div)
(AC-COUPLED)
PULSE SKIPPING MODE
VIN = 3.5V, VOUT = 5.0V, IOUT = 50mA
IL
(200mA/div)
FIGURE 2-16:
Mode).
Time (4μs/div)
Output Ripple (Pulse Skipping
VSW
(5V/div)
VOUT
(50mV/div)
(AC-COUPLED)
IL
(1A/div)
PWM MODE
VIN = 3.5V, VOUT = 5.0V, IOUT = 1.2A
Time (200ns/div)
FIGURE 2-17:
Output Ripple (PWM Mode).
VEN
(2V/div)
V/PG
(2V/div)
VOUT
(5V/div)
IL
(1A/div)
FIGURE 2-18:
BOOST MODE
VIN = 3.5V
VOUT = 5.0V
IOUT = 500mA
Time (400μs/div)
SoftâStart (Boost Mode).
ï£ 2015 Microchip Technology Inc.
DS20005549A-page 9
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