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MICROCHIP MCP1603T-330I/MC product image
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MICROCHIP MCP1603T-330I/MC

Manufacturer
MPN
MCP1603T-330I/MC
LCSC Part #
C623023
Packaging
DFN-8-EP(2x3)
Customer #
Key Attributes
2MHz Step-down type Fixed 3.3V 500mA DFN-8-EP(2x3) Voltage Regulators - DC DC Switching Regulators RoHS
Datasheetpdf iconMICROCHIP MCP1603T-330I/MC
RoHS Compliance2 documents available
Alternative Parts1
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QtyUnit Price(Reference Only)Total Amount
1+$ 1.1623$ 1.16
200+$ 0.4507$ 90.14
500+$ 0.4353$ 217.65
1,000+$ 0.4276$ 427.60
Standard Packaging3300/Full Reel
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Products Specifications

All
TypeDescription
CategoryIntegrated Circuits (ICs)/Power Management (PMIC)/Voltage Regulators - DC DC Switching Regulators
ManufacturerMICROCHIP
PackagingDFN-8-EP(2x3)
Operating Temperature-40℃~+125℃@(TJ)
Frequency - Switching2MHz
FunctionStep-down type
Number of Outputs1
FeaturesCycle-by-cycle current limiting;Light load efficient mode;Overcurrent Protection
TopologyBuck
Output TypeFixed
Operating Voltage2.7V~5.5V
Switch tube (built-in/external)Built-in
Output Voltage3.3V
Output Current500mA
Quiescent Current45uA

Introduction

AI Translation

The MCP1603/B/L is a high-efficiency, fully-integrated 500 mA synchronous buck regulator whose 2.7V to 5.5V input voltage range makes it ideally suited for applications powered from 1-cell Li-Ion or 2-cell/3-cell NiMH/NiCd batteries.

At heavy loads, the MCP1603/B/L operates in the 2.0 MHz fixed frequency pulse-width modulation (PWM) mode, which provides a low noise, low-output ripple, small-size solution. When the load is reduced to light levels, the MCP1603/L automatically changes operation to a Pulse Frequency Modulation (PFM) mode to minimize quiescent current draw from the battery. No intervention is necessary for a smooth transition from one mode to another. These two modes of operation allow the MCP1603/L to achieve the highest efficiency over the entire operating current range.

The MCP1603B device disables the PFM mode switching, and operates only in normal PWM mode over the entire load range (without skipping). MCP1603B is for applications that cannot tolerate the low-frequency output ripple associated with PFM switching.

The MCP1603/B/L family is available with either an adjustable or fixed-output voltage. The available fixed output voltage options for MCP1603/L are 1.2V, 1.5V, 1.8V, 2.5V and 3.3V, and for MCP1603B are 1.8 and 3.3V. When a fixed option is used, only three additional small external components are needed to form a complete solution. Couple this with the low profile, small-foot print packages and the entire system solution is achieved with minimal size.

Additional protection features include: UVLO, overtemperature and overcurrent protection.

Features

AI Translation
  • Over 90% Typical Efficiency
  • Output Current Up To 500 mA
  • Low PFM Quiescent Current = 45 μA, typical (MCP1603/L)
  • Low Shutdown Current = 0.1 μA, typical
  • Adjustable Output Voltage: 0.8V to 4.5V
  • Fixed Output Voltage: 1.2V, 1.5V, 1.8V, 2.5V, 3.3V (MCP1603/L); 1.8V, 3.3V (MCP1603B)
  • 2.0 MHz Fixed-Frequency PWM (Heavy Load)
  • Automatic PWM-to-PFM Mode Transition (MCP1603/L)
  • PWM Mode Only Option (MCP1603B)
  • 100% Duty Cycle Operation
  • Internally Compensated
  • Undervoltage Lockout (UVLO)
  • Overtemperature Protection
  • Space Saving Packages: 5-Lead TSOT, Two Pinout Types (MCP1603/L); 8-Lead 3x3 DFN

Applications

AI Translation
  • Cellular Telephones
  • Portable Computers
  • Organizers / PDAs
  • USB Powered Devices
  • Digital Cameras
  • Portable Equipment
  • +5V or +3.3V Distributed Systems
  • Headsets

Alternative Parts

MPNManufacturerPackagingAvailabilityUnit Price
MCP1602T-330I/MFMICROCHIPDFN-8-EP(2x3)0$ 0.9286