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MIC5332-SSYMT-TR

Dual 300mA ultra-low-Iq ULDO, 2x 3.3V output, 2mm x 2mm Thin MLF-8, 2.3-5.5V input, 120mV dropout @ 300mA, 25uA Iq/LDO, POR with programmable delay.

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Manufacturer Part：

MIC5332-SSYMT-TR

Package：

Thin MLF-8 / DFN-8 (2.0 x 2.0 x 0.6mm)

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Description

Product Overview

The MIC5332-SSYMT-TR is a dual 300 mA ultra-low-quiescent-current ULDO (Ultra Low Dropout) regulator from Microchip in a compact 2 mm x 2 mm Thin MLF-8 package. Both LDO outputs are fixed at 3.3 V with +/-1% accuracy. Drawing only 25 μA per LDO, it achieves PSRR >65 dB and 50 μVrms output noise. LDO2 integrates a Power-On Reset (POR) output with programmable delay via an external capacitor, eliminating the need for a separate reset IC.

Key Specifications

Output Configuration Dual: 3.3 V / 3.3 V (both +/-1% typ)
Max Output Current 300 mA per LDO
Input Voltage 2.3 V to 5.5 V
Dropout Voltage 120 mV typ @ 300 mA / 20 mV typ @ 50 mA
Quiescent Current 25 μA typ per LDO (single enable) / 40 μA (dual enable)
PSRR >65 dB per LDO
Output Noise 50 μVrms typ
POR2 Delay Programmable: 1 sec/μF (CSET2 cap), open = zero delay
Output Capacitor 1 μF ceramic (stable)
Operating Temperature -40 °C to +125 °C
Package Thin MLF-8 (2.0 x 2.0 x 0.6 mm)

Features

  • Extremely low 25 μA/LDO quiescent current in a 2 mm x 2 mm package
  • LDO2 integrated POR with programmable delay eliminates external reset IC
  • Dual independent enable pins for power sequencing control
  • High PSRR and low noise for sensitive analog/RF circuits
  • 1 μF ceramic capacitor stability (μCap design)
  • Current limit and thermal shutdown protection

Applications

  • Battery-powered portable devices
  • FPGA/CPLD dual-rail power supply
  • Processor I/O and core voltage regulation
  • RF module low-noise power supply
  • Portable medical equipment
  • Smartphone/PDA power management

The MIC5332-SSYMT-TR is a dual 300mA ultra-low-quiescent-current ULDO from Microchip in a 2mm x 2mm Thin MLF-8 package. Both outputs are fixed 3.3V with +/-1% accuracy. Only 25uA quiescent current per LDO and 120mV dropout at 300mA. PSRR >65dB and 50uVrms output noise suit sensitive analog/RF circuits. LDO2 includes a Power-On Reset (POR) output with programmable delay via CSET2 capacitor (1sec/uF). Only 1uF ceramic output capacitor required for stability.

The MIC5332 integrates two independent CMOS LDOs sharing a common input but with separate enable controls. Each LDO contains a bandgap reference, error amplifier, and P-channel MOSFET pass element. CMOS process ensures very low ground current (25uA typ per LDO) that does not increase significantly with load. LDO2 integrates a POR comparator monitoring its output voltage; when output reaches threshold, POR2 goes high. CSET2 capacitor programs the POR delay (1sec/uF); open = zero delay. Current limit and thermal shutdown provide fault protection.

Pin Thin MLF-8 Function Description
1 VIN Input Supply 2.3V~5.5V
2 EN1 LDO1 Enable HIGH=on
3 EN2 LDO2 Enable HIGH=on
4 GND Ground –
5 CSET2 POR2 Delay Set Cap to GND; open = zero delay
6 POR2 LDO2 Power-On Reset Open-drain; needs pull-up
7 VOUT2 LDO2 Output 3.3V; 1uF ceramic cap
8 VOUT1 LDO1 Output 3.3V; 1uF ceramic cap
EP GND Exposed Pad Thermal and electrical GND
  • Battery-powered portable devices
  • FPGA/CPLD dual-rail power supply
  • Processor I/O and core voltage regulation
  • RF module low-noise power supply
  • Portable medical equipment
  • Smartphone/PDA power management
Model Type Notes
MIC5332-PMYMT-TR Same family 3.0V/2.8V output combo
MIC5332-G4YMT-TR Same family Other voltage combination
TPS73633DBVR Functional equiv. TI 3.3V 400mA single LDO; SOT-23-5
AP2125K-3.3 Functional equiv. BCD 3.3V 300mA single LDO
TLV70033DDCR Functional equiv. TI 3.3V 200mA LDO
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All electronic components we source from our partnered supply chains go through strict incoming inspections.Through careful testing, we ensure everything delivered to customers is genuine original parts and meets quality requirements.In addition, we keep complete inspection records to make the entire supply chain process clear and traceable.

Certification
We have obtained a number of professional certifications and built our own professional testing laboratory.This ensures that every product we deliver to our customers meets the highest quality requirements.We conduct tests in strict accordance with procedures to ensure stable product quality and accurate parameters.To guarantee genuine original parts, we also cooperate with reliable third-party testing institutions for strict quality inspection.We always attach great importance to quality and fully comply with industry standards, relevant regulations, and ISO 9001:2015 requirements.

Shipping & Payment

All electronic components we source from our partnered supply chains go through strict incoming inspections.Through careful testing, we ensure everything delivered to customers is genuine original parts and meets quality requirements.In addition, we keep complete inspection records to make the entire supply chain process clear and traceable.

Certification
We have obtained a number of professional certifications and built our own professional testing laboratory.This ensures that every product we deliver to our customers meets the highest quality requirements.We conduct tests in strict accordance with procedures to ensure stable product quality and accurate parameters.To guarantee genuine original parts, we also cooperate with reliable third-party testing institutions for strict quality inspection.We always attach great importance to quality and fully comply with industry standards, relevant regulations, and ISO 9001:2015 requirements.

Service & Packaging

All electronic components we source from our partnered supply chains go through strict incoming inspections.Through careful testing, we ensure everything delivered to customers is genuine original parts and meets quality requirements.In addition, we keep complete inspection records to make the entire supply chain process clear and traceable.

Certification
We have obtained a number of professional certifications and built our own professional testing laboratory.This ensures that every product we deliver to our customers meets the highest quality requirements.We conduct tests in strict accordance with procedures to ensure stable product quality and accurate parameters.To guarantee genuine original parts, we also cooperate with reliable third-party testing institutions for strict quality inspection.We always attach great importance to quality and fully comply with industry standards, relevant regulations, and ISO 9001:2015 requirements.

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