MIC3490 Series

High Vin, Low Iq LDO Regulator

Catalog

High Vin, Low Iq LDO Regulator

Part	Output Type	Current - Output	Supplier Device Package	Current - Quiescent (Iq)	Voltage - Input (Max) [Max]	Voltage - Output (Min/Fixed)	Number of Regulators	Control Features	Package / Case	Operating Temperature [Min]	Operating Temperature [Max]	Protection Features	Current - Supply (Max) [Max]	Output Configuration	Mounting Type	Voltage Dropout (Max) [Max]
Microchip Technology MIC3490-3.3YM5-TR	1.81 mOhm	100 mA	SOT-23-5	30 µA	36 V	3.3 V	1	Enable	SC-74A SOT-753	-40 °C	125 ¯C	Over Temperature	2 mA	Positive	Surface Mount	0.45 V

Catalog

High Vin, Low Iq LDO Regulator

Key Features

• * Wide input voltage range: 2.3V to 36V

• * Ultra-low ground current: 18µA

• * Low dropout voltage of 270mV at 100mA

• * High output accuracy of ±2.0% over temperature

• * µCap: stable with ceramic or tantalum capacitors

• * Excellent line and load regulation specifications

• * Zero off-mode current

• * Reverse battery protection

• * Reverse leakage protection

• * Thermal shutdown and current limit protection

• * IttyBitty® SOT-23-5 package

Description

The MIC3490 is a 100mA, highly accurate, low dropout regulator with high input voltage and ultra-low ground current. This combination of high input voltage and low ground current makes the MIC3490 ideal for multi-cell Li-Ion battery systems. A µCap LDO design, the MIC3490 is stable with either ceramic or tantalum output capacitors. It only requires a 2.2µF capacitor for stability. Features of the MIC3490 include enable input, thermal shutdown, current limit, reverse battery protection, and reverse leakage protection. Available in fixed and adjustable output voltage versions, the MIC3490 is offered in the SOT-23-5 package with a junction temperature range of -40°C to +125°C. The MIC3490 is pin to pin compatible with LM3490 which has been obsoleted.