MCP1665T-E/MRA More Semiconductors - ICs by Microchip Technology

High-Voltage 3.6A Isw PFM/PWM Boost Regulator

Status: Active
Series: MCP1665
RoHS: Compliant
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The MCP1665 device is a compact, high-efficiency, fixed-frequency, non-synchronous step-up DC-DC converter that integrates a 36V, 100 mΩ NMOS switch. It provides a space-efficient high-voltage step-up power supply solution for applications powered by either three-cell alkaline, Ultimate Lithium, NiCd, NiMH, one-cell Li-Ion or Li-Polymer batteries. The integrated switch is protected by the typical 3.6A cycle-by-cycle inductor peak current limit operation. There is an output overvoltage protection and an open-load protection that turn off switching if the feedback resistors are accidentally disconnected, the feedback pin is short-circuited to GND or the output is exposed to excessive voltage. Pulse-Frequency Modulation (PFM) switching mode used for power saving is implemented, and it is selectable by the dedicated MODE pin.

MCP1665 is easy to use and allows creating classic boost, SEPIC or flyback DC-DC converters within a small Printed Circuit Board (PCB) area. All compensation and protection circuitry are integrated to minimize the number of external components.

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Prices starting from US$0.84

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Features

36V, 100 mO Integrated Switch
Up to 92% Efficiency
Higher Current Compared to the Previous MCP166x Switchers Family
Output Voltage Range: Up to 32V
IOUT > 1 A at 5.0V VIN, 12V VOUT
IOUT > 700 mA at 3.3V VIN, 12V VOUT
IOUT > 400 mA at 4.2V VIN, 24V VOUT
Input Voltage Range: 2.9V to 5V
UVLO at VIN Rising: 2.9V, typical
UVLO at VIN Falling: 2.7V, typical
No Load Input Current: 250 µA Typically for PFM, 500 µA Typically for PWM
Shutdown Mode with 0.4 µA Typical Quiescent Current
Automatically PFM/PWM or Selected by the MODE Pin, for High Efficiency
500 kHz PWM Operation with Skipping Mode Operation Selectable by Dedicated MODE Pin
Feedback Voltage Reference: VFB = 1.2V
Cycle-by-Cycle Current Limiting
Internal Compensation
Inrush Current Limiting and Internal Soft Start
Output Overvoltage Protection (OVP) and Open-Load Protection (OLP) for Constant Current Configuration
Thermal Shutdown
Easily Configurable for SEPIC, Cuk or Flyback Topologies
Available Package: 10-Lead 2x2 mm VQFN

Specifications

Regulator Type Step Up (Boost)
Switching Frequency (kHz) 500
Input Voltage Range Min 2.7
Input Voltage Range Max 5
Output Current 0
Temp Range Min -40
Temp Range Max 125
Alternative Topology SEPIC, Flyback
Vout Max (V) 32
Quiescent Current (mA) typ 0.25
Light Load Efficiency Mode Yes
Switch current (A) typ 3.6
Automotive Qualified No
SHUTDOWN Current (µA) (Typ) 0.4
# of Outputs 0
Vfb (V) 1.2
Synchronous Rectifier No
Duty Cycle Max (%) 90
Pins | Packaging 10 | VQFN
Temp Range -40C to +125C
Packing Media Tape and reel (3300)

Last 6 months Inventory & Pricing History


Environmental Information

JEDEC Indicator e3
ROHS Compliant
China EFUP Compliant
Device Weight (g) 0.0
Shipping Weight (kg) 0.234849
Lead Count 10
Package Type VQFN
Package Width or Size 2x2x0.9mm
Soldering Composition Matte Tin

Alternative Descriptions

3.6A peak current, 32V Output High Voltage NonSynchronous Boost Converter | Microchip Technology
Pfm/Pwm Regulator, Boost, 500Khz, Vqfn10 | Newark Electronics
PFM/PWM REGULATOR, BOOST, 500KHZ, VQFN10 | element14
Power management IC | RS
IC: PMIC | TME
High-Voltage 3.6A Integrated Switch PFM/PWM Boost Regulator 3.7V to 36V Output Voltage 10-Pin VQFN | EBV Elektronik


Frequently Asked Questions

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Yes. This part has been flagged as RoHS Compliant by Microchip Technology.

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