MCP1612 Microchip Technology, MCP1612 Datasheet - Page 7

• Manufacturer Part Number: MCP1612
• Description: 1.4 MHz Synchronous Buck Regulator
• Manufacturer: Microchip Technology

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TYPICAL PERFORMANCE CURVES (Continued)
Note: Unless otherwise indicated, V
T
FIGURE 2-7:
FIGURE 2-8:
FIGURE 2-9:
© 2005 Microchip Technology Inc.
A
200 mV/DIV
500 mA/DIV
= +25°C. Boldface specifications apply over the T
2.0V/DIV
1.0V/DIV
2.0V/DIV
1.0V/DIV
SHDN
V
V
OUT
V
V
OUT
I
IN
OUT
OUT
Start-up from V
I
OUT
Start-up from SHDN
Power-Up from V
Power-Up from Shutdown.
Load Transient Response.
= 100 mA to 800 mA
1.0 ms/DIV
1.0 ms/DIV
50 µs/DIV
IN
= 0V to 3.3V
V
IN
V
OUT
OUT
V
= V
OUT
IN
= 1.8V
= 1.8V
CC
.
= 1.8V
= V
SHDN
A
range of -40°C to +85°C.
= 3.3V, C
FIGURE 2-10:
FIGURE 2-11:
FIGURE 2-12:
100 mV/DIV
500 mA/DIV
50 mV/DIV
50 mV/DIV
OUT
2.0V/DIV
2.0V/DIV
V
= C
V
V
I
OUT
OUT
V
V
OUT
OUT
IN
IN
IN
Line Step Response, V
Line Step Response, V
= 10 µF, L = 3.3 µH, I
I
OUT
Load Transient Response.
Line Transient Response.
Line Transient Response.
= 100 mA to 800 mA
200 µs/DIV
200 µs/DIV
500 µs/DIV
MCP1612
IN
IN
I
I
OUT
OUT
= 3.0V to 4.0V
= 4.5V to 5.5V
DS21921B-page 7
LOAD
V
V
V
OUT
OUT
OUT
= 800 mA
V
= 800 mA
IN
= 3.3V
= 100 mA,
= 1.8V
= 5.0V
= 3.3V