Microchip MCP1624T-I/CHY, Boost Regulator 50mA Adjustable, 2 → 5.5 V, 630 kHz 6-Pin, SOT-23

  • RS stock no. 823-7875
  • Mfr. Part No. MCP1624T-I/CHY
  • Manufacturer Microchip
Technical data sheets
Legislation and Compliance
Compliant
COO (Country of Origin): TH
Product Details

MCP1623/1624 Synchronous Boost Converter

The Microchip MCP1623 and MCP1624 are Adjustable, Fixed Frequency, Synchronous Step-Up DC-DC Converters. Primarily they are designed to offer a compact and highly efficient power supply solution for PIC Microcontrollers in one-, two- and three-cell battery powered applications. The desired output voltage of the device is set by the application of a small external resistor divider.

The design allows the regulator to start up without high inrush current or output voltage overshoot from a low 0.65 V input. Combined is a low-resistance N-Channel Boost Switch and Synchronous P-Channel Switch to offer high efficiency. All compensation and protection circuitry is integrated into the device to minimise the required external components.

Also featured is a Load Disconnect mode that provides input to output isolation while disabled. This mode consumes less than 1 μA of input current.

Features

Up to 96% Typical Efficiency
425 mA Typical Peak Input Current Limit
Low Start Up Voltage: 0.65 V (typical) @ 3.3 V VOUT, 1 mA
Low Operating Input Voltage: 0.35 V (typical) @ 3.3 V VOUT, 1 mA
Adjustable Output Voltage Range: 2.0 V to 5.5 V
Automatic PFM/PWM Operation – MCP1624 model only
PWM-only Operation – MCP1623 model only
500 kHz PWM Frequency
Low Device Quiescent Current: 19 μA (typical, PFM mode)
Internal Synchronous Rectifier
Internal Compensation
Inrush Current Limiting and Internal Soft-Start
True Load Disconnect
Shutdown Current: < 1 μA
Low Noise, Anti-Ringing Control
Over-temperature Protection

Specification
Attribute Value
Maximum Output Current 50mA
Number of Outputs 1
Line Regulation 0.01 %/V
Load Regulation 0.01 %/V
Mounting Type Surface Mount
Package Type SOT-23
Pin Count 6
Output Type Adjustable
Maximum Switching Frequency 630 kHz
Dimensions 3.1 x 1.8 x 1.3mm
Height 1.3mm
Minimum Operating Temperature -40 °C
Length 3.1mm
Minimum Output Voltage 2 V
Width 1.8mm
Maximum Operating Temperature +125 °C
Maximum Input Voltage 5.5 V
Maximum Output Voltage 5.5 V
Minimum Input Voltage 0.65 V
4700 Available from UK/Europe in 4–6 working days (Covid-19 flight delays could impact quoted delivery times) for collection or delivery to major cities (Heavy, hazardous or lithium product excluded. Delivery T&C's apply)
Price (Excl VAT) Each (In a Pack of 20)
R 7.35
(exc. VAT)
R 8.45
(inc. VAT)
units
Per unit
Per Pack*
20 - 180
R 7.35
R 147.00
200 - 480
R 7.203
R 144.06
500 +
R 6.987
R 139.74
*price indicative
Not Available for premium delivery
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