Specification	MIC5259-3.3YD5-TR

Control Features	Enable
Current - Output	300 mA
Current - Quiescent (Iq)	150 çA
Current - Supply (Max) [Max]	250 µA
Mounting Type	Surface Mount
Number of Regulators	1
Operating Temperature [Max]	125 °C
Operating Temperature [Min]	-40 °C
Output Configuration	Positive
Output Type	1.81 mOhm
Package / Case	SOT-23-5 Thin, TSOT-23-5
Protection Features	Under Voltage Lockout (UVLO), Over Temperature, Over Current
PSRR [Max]	65 dB
PSRR [Min]	53 dB
Voltage - Input (Max) [Max]	6 V
Voltage - Output (Min/Fixed)	3.3 V
Voltage Dropout (Max) [Max]	0.55 V

MIC5259 Series

Low Drop Out Regulator, 300mA High PSRR

Part	Output Configuration	Output Type	Voltage - Output (Min/Fixed)	Protection Features	Control Features	Current - Output	Package / Case	Number of Regulators	Current - Supply (Max) [Max]	Voltage Dropout (Max) [Max]	Current - Quiescent (Iq)	Mounting Type	Operating Temperature [Max]	Operating Temperature [Min]	Voltage - Input (Max) [Max]	PSRR [Min]	PSRR [Max]	Supplier Device Package
Microchip Technology MIC5259-3.3YD5-TR	Positive	1.81 mOhm	3.3 V	Over Current Over Temperature Under Voltage Lockout (UVLO)	Enable	300 mA	SOT-23-5 Thin TSOT-23-5	1	250 µA	0.55 V	150 çA	Surface Mount	125 °C	-40 °C	6 V	53 dB	65 dB
Microchip Technology MIC5259-2.5BD5-TR	Positive	1.81 mOhm	2.5 V	Over Current Over Temperature Under Voltage Lockout (UVLO)	Enable	300 mA	SOT-23-5 Thin TSOT-23-5	1	250 µA	0.55 V	150 çA	Surface Mount	125 °C	-40 °C	6 V	53 dB	65 dB
Microchip Technology MIC5259-3.0YD5-TR	Positive	1.81 mOhm		Over Current Over Temperature Under Voltage Lockout (UVLO)	Enable	300 mA	SOT-23-5 Thin TSOT-23-5	1	250 µA	0.55 V	150 çA	Surface Mount	125 °C	-40 °C	6 V	53 dB	65 dB
Microchip Technology MIC5259-3.3BML-TR	Positive	1.81 mOhm	3.3 V	Over Current Over Temperature Under Voltage Lockout (UVLO)	Enable	300 mA	6-MLF® 6-VDFN Exposed Pad	1	250 µA	0.55 V	150 çA	Surface Mount	125 °C	-40 °C	6 V	53 dB	65 dB	6-DFN (2x2)
Microchip Technology MIC5259-1.5YML-TR	Positive	1.81 mOhm	1.5 V	Over Current Over Temperature Under Voltage Lockout (UVLO)	Enable	300 mA	6-MLF® 6-VDFN Exposed Pad	1	250 µA	0.55 V	150 çA	Surface Mount	125 °C	-40 °C	6 V	53 dB	65 dB	6-DFN (2x2)
Microchip Technology MIC5259-3.0YML-TR	Positive	1.81 mOhm		Over Current Over Temperature Under Voltage Lockout (UVLO)	Enable	300 mA	6-MLF® 6-VDFN Exposed Pad	1	250 µA	0.55 V	150 çA	Surface Mount	125 °C	-40 °C	6 V	53 dB	65 dB	6-DFN (2x2)
Microchip Technology MIC5259-1.8YML-TR	Positive	1.81 mOhm	1.8 V	Over Current Over Temperature Under Voltage Lockout (UVLO)	Enable	300 mA	6-MLF® 6-VDFN Exposed Pad	1	250 µA	0.55 V	150 çA	Surface Mount	125 °C	-40 °C	6 V	53 dB	65 dB	6-DFN (2x2)
Microchip Technology MIC5259-4.75YD5-TR	Positive	1.81 mOhm		Over Current Over Temperature Under Voltage Lockout (UVLO)	Enable	300 mA	SOT-23-5 Thin TSOT-23-5	1	250 µA	0.55 V	150 çA	Surface Mount	125 °C	-40 °C	6 V	53 dB	65 dB
Microchip Technology MIC5259-1.5YD5-TR	Positive	1.81 mOhm	1.5 V	Over Current Over Temperature Under Voltage Lockout (UVLO)	Enable	300 mA	SOT-23-5 Thin TSOT-23-5	1	250 µA	0.55 V	150 çA	Surface Mount	125 °C	-40 °C	6 V	53 dB	65 dB
Microchip Technology MIC5259-2.1YML-TR	Positive	1.81 mOhm	2.1 V	Over Current Over Temperature Under Voltage Lockout (UVLO)	Enable	300 mA	6-MLF® 6-VDFN Exposed Pad	1	250 µA	0.55 V	150 çA	Surface Mount	125 °C	-40 °C	6 V	53 dB	65 dB	6-DFN (2x2)

Pricing

Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly

Distributor	Package	Quantity	$

Digikey	Cut Tape (CT)	1	$ 0.69
		25	$ 0.58
		100	$ 0.53
	Digi-Reel®	1	$ 0.69
		25	$ 0.58
		100	$ 0.53
	Tape & Reel (TR)	3000	$ 0.53
Microchip Direct	T/R	1	$ 0.69
		25	$ 0.58
		100	$ 0.53
		1000	$ 0.52
		5000	$ 0.50
Newark	Each (Supplied on Full Reel)	100	$ 0.56

Description

General part information

MIC5259 Series

The MIC5259 is an efficient CMOS voltage regulator optimized for low-noise applications. It offers 1.5% initial accuracy, low dropout voltage (300mV at 300mA), and low ground current (typically 105µA at light load). The MIC5259 provides a very low noise output, ideal for RF applications where a clean voltage source is required. The MIC5259 has a high PSRR even at low supply voltages, critical for battery-operated electronics. A noise bypass pin is also available for further reduction of output noise.

Designed specifically for handheld and battery-powered devices, the MIC5259 provides a TTL logic-compatible enable pin. When disabled, power consumption drops to nearly zero.

The MIC5259 also works with low-ESR ceramic capacitors, reducing the amount of board space necessary for power applications; a critical issue in handheld wireless devices.

Documents

Technical documentation and resources

Product Change Notice EN

Datasheet

MIC5259 - 300mA, High PSRR, Low Noise μCap CMOS LDO

Data Sheets