Information

16
Portable Power Conversion Design Guide
DC/DC Conversion
Step-Up (Boost) Switch Mode Power Converters
Device Output
Input
Voltage
Range (V)
Output
Voltage
Range (V)
Control
Scheme
Features Packages
MCP1623/4 Adjustable
0.35/
0.65–5.0
2–5.5
PFM/PWM
or PWM
Only
425 mA peak current limit, 500 kHz
synchronous operation, PFM/PWM
(MCP1624) or PWM only (MCP1623) mode
switching operation, internal compensation,
over-temperature protection, 19 µA quiescent
current, < 1 µA shutdown current, true output
disconnect
6-pin SOT-23,
8-pin 2 × 3
TDFN
MCP16251/2 Adjustable
0.35/
0.82–5.0
1.8–5.5 PFM/PWM
650 mA peak current limit, 500 kHz
synchronous operation, internal
compensation, over-temperature protection,
4 µA quiescent current, 0.6 µA shutdown
current, true output disconnect (MCP16251)
or input to output bypass (MCP16252)
options, ± 3% output accuracy
6-pin SOT-23,
8-pin 2 × 3
TDFN
MCP1640/B/C/D Adjustable
0.35/
0.65–5.0
2–5.5
PFM/PWM
or PWM
Only
800 mA peak current limit, 500 kHz
synchronous operation, internal
compensation, over-temperature protection,
19 µA quiescent current, < 1 µA shutdown
current, true output disconnect (MCP1640/B)
or input to output bypass (MCP1640C/D)
options, ± 3% output accuracy
6-pin SOT-23,
8-pin 2 × 3
TDFN