MCP1661T-E/OT Description
The MCP1661T-E/OT is a high-voltage integrated switch PWM Boost Regulator with UVLO. The MCP1661 device is a compact, high-efficiency, fixed-frequency, non-synchronous step-up DC-DC converter which integrates a 36V, 800mR 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. The integrated switch is protected by the 1.3A cycle-by-cycle inductor peak current limit operation. There is an output overvoltage protection which turns off switching in case the feedback resistors are accidentally disconnected or the feedback pin is short-circuited to GND.
MCP1661T-E/OT Features
Up to 92% efficiency
Internal compensation
1.3A Peak input current limit
36V, 800mR Integrated switch
Under-voltage lockout (UVLO)
Cycle-by-cycle current limiting
250µA Typical no load input current
VFB = 1.227V Feedback voltage reference
Inrush current limiting and internal soft start
Sleep mode with 200nA typical quiescent current
Easily configurable for SEPIC or Flyback topologies
Output overvoltage protection (OVP) in the event of feedback pin shorted to GND
MCP1661T-E/OT Applications
Medical
Portable Devices
Power Management
