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LR645N5-G +BOM

Linear Voltage Regulator IC Positive Fixed 1 Output 3mA TO-220-3

Manufacturer:

Microchip
Mfr.Part #:

LR645N5-G
Datasheet:

LR645N5-G Datasheet (PDF)
Mounting Style:

Through Hole
Number Of Outputs:

1 Output
Polarity:

Positive
Output Voltage:

10 V
EDA/CAD Models:

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LR645N5-G General Description

LR645 is a high input voltage, low output current linear regulator. It has a 3-terminal fixed output voltage version available in TO-92, TO-220 and SOT-89 packages, as well as an adjustable voltage version available in an 8-lead SOIC package. The 3-terminal version functions like any other low voltage 3-terminal regulator except it allows the use of much higher input voltages. When used in a SMPS start-up circuit, it eliminates the need for large power resistors. In this application, current is drawn from the high voltage line only during start-up. Only leakage current flows after start-up, thereby reducing the continuous power dissipation to a few milliwatts.The adjustable voltage version allows trimming of the output voltage from 8.0 to 12V. This version can also be connected to an external depletion mode MOSFET for increased output current. When used in conjunction with depletion mode MOSFET DN2540N5, an output current of up to 150mA is achieved.

Key Features

Accepts inputs from 15 to 450V
Output currents up to 3.0mA continuous, 30mA peak
Supply current typically 50µA
Line regulation typically 0.1mV/V
Output can be trimmed from 8.0 to 12V
Output current can be increased to 150mA with external FET

Specifications

Product Category	Linear Voltage Regulators	Mounting Style	Through Hole
Number of Outputs	1 Output	Polarity	Positive
Output Voltage	10 V	Output Current	3 mA
Output Type	Fixed	Input Voltage, Min	15 V
Input Voltage, Max	450 V	Minimum Operating Temperature	- 55 C
Maximum Operating Temperature	+ 150 C	Load Regulation	400 mV
Line Regulation	200 mV	Quiescent Current	50 uA
Height	9.02 mm (Max)	Length	10.67 mm (Max)
Pd - Power Dissipation	1.8 W	Product Type	Linear Voltage Regulators
PSRR / Ripple Rejection - Typ	60 dB	Factory Pack Quantity	50
Subcategory	PMIC - Power Management ICs	Width	4.83 mm (Max)
Unit Weight	0.081130 oz