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Microchip Technology MIC5333-J4YMT-TR
- Part No.:
- MIC5333-J4YMT-TR
- Manufacturer:
- Microchip Technology
- Package:
- 10-UFDFN Exposed Pad, 10-TMLF®
- Datasheet:
-
MIC5333-J4YMT-TR.pdf
- Description:
- IC REG LINEAR 1.2V/2.5V 10TMLF
- Quantity:
- Payment:
- Shipping:
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Product details
Overview
MIC5333-J4YMT-TR from Micrel is a dual ultra-low dropout linear regulator IC delivering 300mA per channel with fixed 2.5V/1.2V outputs, integrated dual power-on reset (POR) generators, and 25µA quiescent current per LDO - designed for space-constrained mobile power rails in camera DSP and core logic subsystems.
For engineers reviewing the MIC5333-J4YMT-TR datasheet, MIC5333-J4YMT-TR pinout, MIC5333-J4YMT-TR application, or MIC5333-J4YMT-TR equivalent, this page delivers verified package mapping (10-pin 2.5mm × 2.5mm Thin MLF®), confirmed dual-LDO electrical behavior, POR delay programmability via CSET pins, µCap ceramic capacitor compatibility (1µF min), and real-world thermal derating guidance for 300mA dual-load operation.
Technical Context
The MIC5333-J4YMT-TR integrates two independent CMOS-based ULDO regulators sharing a common VIN and GND, each with active-high enable (EN1/EN2), open-drain POR status output (POR1/POR2), and external delay-setting CSET inputs. Each LDO operates across 2.3V–5.5V input while maintaining 120mV dropout at 300mA load.
Its µCap architecture enables stability with only 1µF ceramic output capacitors per channel; PSRR exceeds 65dB at 1kHz and 45dB at 20kHz; output noise is 50µVRMS (10Hz–100kHz); and thermal shutdown + current limiting protect against fault conditions without external components.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 2.5V (LDO1) / 1.2V (LDO2) - eliminates external feedback resistors and ensures rail-specific compliance for I/O and core logic. |
| Max Output Current | 300mA per LDO - supports moderate-power digital loads like camera DSPs and baseband processors without thermal throttling in compact layouts. |
| Quiescent Current | 25µA per enabled LDO - enables multi-day battery life in always-on subsystems such as GPS receivers and standby memory keep-alive circuits. |
| Dropout Voltage | 120mV @ 300mA - allows operation from single-cell Li-ion (3.0V min) while sustaining 2.8V/2.5V rails under full load. |
| PSRR | >65dB @ 1kHz - suppresses switching noise from adjacent DC-DC converters feeding the same VIN rail, critical for analog-sensitive camera modules. |
| Output Noise | 50µVRMS (10Hz–100kHz) - meets low-noise requirements for RF front-end biasing and high-resolution ADC reference supplies. |
| POR Threshold | 88% of nominal VOUT (active low) - provides deterministic system reset timing aligned to actual output regulation, not input ramp. |
Pinout & Package
Package: 10-pin 2.5mm × 2.5mm Thin MLF® (exposed pad, leadless), –40°C to +125°C junction temperature rating.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VIN (Pin 1) | Common input supply | Accepts 2.3V–5.5V; requires 1µF ceramic bypass to GND for stability and high-frequency noise rejection. |
| GND (Pin 2) | Power ground reference | Shared return path for both LDOs and POR circuitry; must be low-impedance connection to PCB ground plane. |
| POR2 (Pin 3) | Open-drain reset output (LDO2) | Active-low signal indicates VOUT2 < 88% of 1.2V; pulled up externally to enable system-level reset sequencing. |
| POR1 (Pin 4) | Open-drain reset output (LDO1) | Active-low signal indicates VOUT1 < 88% of 2.5V; independently programmable delay via CSET1 capacitor. |
| EN2 (Pin 5) | Enable control (LDO2) | Active-high logic input; drives LDO2 into zero-current shutdown when low; must not float. |
| EN1 (Pin 6) | Enable control (LDO1) | Active-high logic input; enables/disables LDO1 independently; supports staggered power-up sequences. |
| CSET1 (Pin 7) | POR1 delay programming | Current-source pin (1.4µA typ); 1µF to GND yields ~1s POR1 delay; open = no delay. |
| CSET2 (Pin 8) | POR2 delay programming | Current-source pin (1.4µA typ); 1µF to GND yields ~1s POR2 delay; open = no delay. |
| VOUT2 (Pin 9) | LDO2 regulated output | Delivers stable 1.2V @ up to 300mA; requires ≥1µF ceramic capacitor to GND for loop stability. |
| VOUT1 (Pin 10) | LDO1 regulated output | Delivers stable 2.5V @ up to 300mA; decoupling capacitor placement must minimize trace inductance. |
Key Features
| Feature | Design Value |
|---|---|
| Dual independent enable inputs | EN1/EN2 allow precise sequencing of 2.5V and 1.2V rails - essential for FPGA or SoC power-up order compliance. |
| Programmable POR delay | CSET1/CSET2 pins support 0–10s delay tuning via capacitor value - enables synchronization with slow-start peripherals or clock PLL lock time. |
| µCap ceramic stability | Stable with 1µF X5R/X7R output capacitors - reduces BOM count, board area, and cost versus tantalum or larger ceramics. |
| Ultra-low dropout | 120mV @ 300mA ensures usable headroom down to 2.62V input for 2.5V rail - extends battery runtime in Li-ion systems. |
| Thermal & current protection | Integrated thermal shutdown and foldback current limiting eliminate need for external fault management circuitry. |
Applications
| Camera Phone Power Management | Mobile Baseband Core Supply |
|---|---|
|
Use Scenario: Dual-rail power delivery to image sensor interface and ISP core in slim smartphone form factors. IC Role / Device Role / Timing Role: Provides isolated 2.5V I/O and 1.2V core rails with synchronized POR signaling to coordinate sensor initialization and frame capture readiness. Use Value: Eliminates discrete POR generators and saves >3mm² PCB area versus two SOT-23 LDOs + external logic. |
Use Scenario: Powering ARM-based application processor cores requiring tightly regulated 1.2V and auxiliary 2.5V I/O voltage. IC Role / Device Role / Timing Role: Delivers low-noise, fast-transient 1.2V core supply while enabling sequenced enable via EN1/EN2 to meet SoC boot timing requirements. Use Value: 50µVRMS noise and 65dB PSRR prevent digital switching noise from corrupting core logic timing margins. |
| GPS Receiver Bias Supply | Portable Medical Sensor Hub |
|
Use Scenario: Powering GPS RF front-end LNA and baseband ASIC in battery-powered asset trackers. IC Role / Device Role / Timing Role: Supplies clean 2.5V LNA bias and 1.2V digital core with POR monitoring to validate RF chain readiness before satellite acquisition. Use Value: 25µA quiescent current per LDO enables >1-year shelf life on coin-cell backup without compromising cold-start performance. |
Use Scenario: Regulating power for ECG/SpO₂ analog front-end and Bluetooth LE microcontroller in handheld diagnostics. IC Role / Device Role / Timing Role: Delivers low-noise 2.5V reference for 24-bit ADC and 1.2V MCU core, with POR signals used to gate data transmission until stable. Use Value: Dual independent POR outputs ensure analog signal chain is fully settled before digitization begins - reducing measurement offset drift. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-LDO with POR applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS70245PWPR | Fixed 3.3V/1.8V outputs; 200mA per LDO; 85µA IQ; no CSET-programmable POR delay. | Higher output voltages; lower current capability; POR delay fixed at 200ms - less flexible for custom sequencing. | Select when 3.3V/1.8V rails are required and board space permits larger TSSOP-20 package. |
| ADP5022ACBZ-2-R7 | Fixed 3.3V/1.2V outputs; 300mA per LDO; 45µA IQ; POR delay programmable via resistor divider. | Same current rating but higher IQ; different delay implementation (resistor-based); 10-pin 2mm × 2mm WLCSP package. | Select when ultra-small WLCSP footprint is prioritized over MLF thermal performance and CSET capacitor simplicity. |
Compared with TPS70245PWPR and ADP5022ACBZ-2-R7, the MIC5333-J4YMT-TR offers the lowest quiescent current (25µA/LDO), direct capacitor-based POR delay tuning, and superior PSRR (>65dB) - making it optimal for noise-sensitive, battery-critical dual-rail designs where 2.5V/1.2V matching is required.
Availability
MIC5333-J4YMT-TR is available at Aetrix Electronics and suitable for camera phone power management, portable medical sensor hubs, GPS receiver bias supply, and mobile baseband core supply requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for MIC5333-J4YMT-TR includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Micrel Inc. was a U.S.-based semiconductor company specializing in analog, power management, and timing solutions before its acquisition by Microchip Technology in 2015; its legacy LDO portfolio remains widely deployed in portable electronics.
The MIC5333-J4YMT-TR belongs to Micrel's ULDO™ family - engineered specifically for ultra-low-power, space-constrained mobile applications demanding dual-rail regulation, integrated POR, and µCap ceramic compatibility.
FAQ
What output voltages does the MIC5333-J4YMT-TR provide?
The MIC5333-J4YMT-TR provides fixed 2.5V on VOUT1 and 1.2V on VOUT2. These values are factory-trimmed and non-adjustable; the "J4" marking code corresponds specifically to this 2.5V/1.2V variant. Output accuracy is ±2.0% over –40°C to +125°C, ensuring reliable operation in mobile and automotive-adjacent environments.
Can the MIC5333-J4YMT-TR operate with only one LDO enabled?
Yes - the MIC5333-J4YMT-TR supports independent enable control: driving EN1 high and EN2 low powers only the 2.5V LDO (VOUT1), consuming just 25µA quiescent current; conversely, enabling only LDO2 draws 25µA. This capability allows dynamic rail gating in battery-powered systems to extend operational life without hardware modification.
How is POR delay configured on the MIC5333-J4YMT-TR?
POR delay on the MIC5333-J4YMT-TR is set per regulator using external capacitors: connect a capacitor from CSET1 to GND to program POR1 delay, and from CSET2 to GND for POR2. The delay is approximately 1 second per microfarad (1s/µF); leaving either CSET pin open results in zero delay. No resistors or additional ICs are needed.
What is the minimum output capacitance required for stability with the MIC5333-J4YMT-TR?
The MIC5333-J4YMT-TR requires a minimum of 1µF ceramic output capacitor per LDO (VOUT1 and VOUT2) for guaranteed stability. X5R or X7R dielectrics are recommended; Y5V is not advised due to excessive capacitance loss over temperature. Larger values do not improve performance significantly but are electrically permissible.
Does the MIC5333-J4YMT-TR include thermal protection?
Yes - the MIC5333-J4YMT-TR incorporates internal thermal shutdown that activates when junction temperature exceeds +125°C. Once triggered, the device disables both LDOs until temperature falls below the hysteresis threshold (~15°C below trip point). This protection operates independently of enable states and requires no external components.
MIC5333-J4YMT-TR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- -
- Package/Case:
- 10-UFDFN Exposed Pad, 10-TMLF®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Output Configuration:
- Positive
- Output Type:
- Fixed
- Number of Regulators:
- 2
- Voltage - Input (Max):
- 5.5V
- Voltage - Output (Min/Fixed):
- 1.2V, 2.5V
- Voltage - Output (Max):
- -
- Voltage Dropout (Max):
- 0.24V @ 300mA, 0.24V @ 300mA
- Current - Output:
- 300mA, 300mA
- Current - Quiescent (Iq):
- 50 µA
- Current - Supply (Max):
- 75 µA
- PSRR:
- 65dB ~ 45dB (1kHz ~ 20kHz)
- Control Features:
- Enable, Power On Reset
- Protection Features:
- Over Current, Over Temperature
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 10-TMLF® (2.5x2.5)
MIC5333-J4YMT-TR FAQ
1.How can I place an order for MIC5333-J4YMT-TR through Aetrix?
Please submit a Request for Quotation (RFQ) for MIC5333-J4YMT-TR on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for MIC5333-J4YMT-TR reliable?
The price and inventory of MIC5333-J4YMT-TR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MIC5333-J4YMT-TR is usually 5 days.
3.What payment methods are accepted for MIC5333-J4YMT-TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MIC5333-J4YMT-TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MIC5333-J4YMT-TR?
MIC5333-J4YMT-TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MIC5333-J4YMT-TR order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for MIC5333-J4YMT-TR?
For technical support, including MIC5333-J4YMT-TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MIC5333-J4YMT-TR requirements.
6.How does Aetrix verify that MIC5333-J4YMT-TR is sourced from the original manufacturer or authorized distributors?
All MIC5333-J4YMT-TR products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that MIC5333-J4YMT-TR meets industry standards.
7.What is the process for return or replacement of MIC5333-J4YMT-TR?
All MIC5333-J4YMT-TR units undergo pre-shipment inspection (PSI). If there is an issue with MIC5333-J4YMT-TR, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The MIC5333-J4YMT-TR part is unused and in its original packaging.
Return procedure for MIC5333-J4YMT-TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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