MCP1661
High-Voltage Integrated Switch PWM Boost Regulator with UVLO
Features General Description The MCP1661 device is a compact, high-efficiency,
fixed-frequency, non-synchronous step-up DC-DC
converter which integrates a 36V, 800 mпЃ— NMOS
switch. It provides a space-efficient high-voltage
step-up power supply solution for applications powered
by either two-cell or three-cell alkaline, Ultimate Lithium,
NiCd, NiMH, one-cell Li-Ion or Li-Polymer batteries. 36V, 800 mпЃ— Integrated Switch
Up to 92% Efficiency
High Output Voltage Range: up to 32V
1.3A Peak Input Current Limit:
-IOUT > 200 mA @ 5.0V VIN, 12V VOUT
-IOUT > 125 mA @ 3.3V VIN, 12V VOUT
-IOUT > 100 mA @ 4.2V VIN, 24V VOUT
Input Voltage Range: 2.4V to 5.5V
Undervoltage Lockout (UVLO):
-UVLO @ VIN Rising: 2.3V, typical
-UVLO @ VIN Falling: 1.85V, typical
No Load Input Current: 250 ВµA, typical
Sleep mode with 200 nA Typical Quiescent
Current
PWM Operation with Skip mode: 500 kHz …
