Microchip MCP1623T-I/CHY, Boost Regulator 50mA Adjustable, 2 → 5.5 V, 630 kHz 6-Pin, SOT-23

  • RS Stock No. 823-7871
  • Mfr. Part No. MCP1623T-I/CHY
  • Manufacturer Microchip
Technical data sheets
Legislation and Compliance
RoHS Certificate of Compliance
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

Specifications
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
Maximum Operating Temperature +125 °C
Length 3.1mm
Maximum Output Voltage 5.5 V
Minimum Input Voltage 0.65 V
Maximum Input Voltage 5.5 V
Minimum Operating Temperature -40 °C
Minimum Output Voltage 2 V
Width 1.8mm
6340 In stock for delivery within 5 working day(s)
Price (ex. GST) Each (In a Pack of 20)
$ 0.63
(exc. GST)
$ 0.69
(inc. GST)
units
Per unit
Per Pack*
20 - 180
$0.63
$12.60
200 - 480
$0.593
$11.86
500 +
$0.566
$11.32
*price indicative
Packaging Options:
Related Products
BU33UV7NUX is a synchronous buck-boost convertor with low ...
Description:
BU33UV7NUX is a synchronous buck-boost convertor with low power consumption and provides a power supply for products powered by either two-cell alkaline/ NiCd/ NiMH or one-cell Li-ion or Li-polymer battery. Output currents can go as high as 500mA while using ...
BD8303MUV generates step-up/down output including 3.3 V / ...
Description:
BD8303MUV generates step-up/down output including 3.3 V / 5 V from 1 cell of lithium battery, 4 batteries, or 2 cells of Li batteries with just one inductor. This IC adopts an original step-up/down drive system and creates a higher ...
ROHM’s highly-efficient buck-boost converter BD8306MUV produces step-up/down output ...
Description:
ROHM’s highly-efficient buck-boost converter BD8306MUV produces step-up/down output voltage including 3.3 V from two-cell or three-cell alkaline battery, or one-cell lithium-ion battery with just one inductor. This IC adopts an original step-up/down drive system and creates a higher efficient power ...
BD9859EFJ mainly used as secondary side Power supply, ...
Description:
BD9859EFJ mainly used as secondary side Power supply, for example from fixed Power supply of 9V, 12V etc, Step-down Output of 1.2V/1.8V/3.3V/5V, etc, can be produced. This IC has external Coil/Capacitor down-sizing through 750kHz High Frequency operation, inside Nch-FET SW ...