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MCP1722-3310H/S7X

MCHPMCP1722-3310H/S7X

Microchip Technology
LDO Voltage Regulators High Voltage Dual Output LDO 3.3Vout on LDO2 with 10Vout on LDO1 SOIC 8Ld with Extended Temperature Range
140 in stock
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Overview

The MCP1722-3310H/S7X is a high-voltage dual-output LDO regulator designed to operate with input voltages up to 55V. This specific variant provides two fixed outputs: a 3.3V LDO2 and a 10V LDO1, making it ideal for systems requiring both a logic-level supply and a higher voltage rail for gate drivers or sensors. It is rated for extended temperature operation up to 150 degrees Celsius junction temperature.

Why Choose This Part

The device features a very high PSRR of 80dB at 100Hz and a low shutdown current of 14uA, aiding in battery-sensitive applications. Its wide input range of 4.5V to 55V eliminates the need for pre-regulators in high-voltage industrial systems. The inclusion of Power Good and Enable pins simplifies power sequencing and system monitoring.

Applications

Industrial Gate Drive Supply
Utilize the 10V rail for MOSFET/IGBT gate drive circuitry while the 3.3V rail powers the local microcontroller or logic.
High-Voltage Sensor Interfaces
Power industrial transducers requiring a 10V excitation voltage alongside 3.3V digital communication ICs.
Automotive Aftermarket Electronics
Robust 55V input capability handles vehicle transient environments while providing stable dual rails for mixed-signal boards.
E-Bike and Battery Powered Systems
Directly regulate high battery stack voltages down to usable logic and analog peripheral levels.

Key Specifications

PSRR 80dB (100Hz)
Output Type Fixed
Mounting Type Surface Mount
Package / Case 8-SOIC (0.154", 3.90mm Width) Exposed Pad
Control Features Enable, Power Good
Current - Output 50mA, 100mA
Protection Features Over Current, Over Temperature, Short Circuit
Number of Regulators 2
Output Configuration Positive
Operating Temperature -40degC ~ 150degC (TJ)
Voltage - Input (Max) 55V
Voltage Dropout (Max) 0.75V @ 50mA, 0.75V @ 100mA
Supplier Device Package 8-SOIC-EP
Current - Quiescent (Iq) 80 uA
Voltage - Output (Min/Fixed) 3.3V, 10V

Getting Started

When designing the PCB layout, ensure the 8-lead SOIC's exposed pad is soldered to a large ground plane to manage thermal dissipation, especially when operating near the 55V maximum input. Use ceramic capacitors for stability as specified in the datasheet to maintain the 80dB PSRR performance. The device's fixed output configuration eliminates the need for external feedback resistors, reducing BOM count and potential noise injection points.

MCP1722 Family

Part NumberDifferenceStock
MCP1722-3312H/S7X 2H/S7X 2,596
MCP1722-5012H/S7X 5012H/S7X 2,097

Categories

Power Management > LDO Voltage Regulators