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Microchip Technology MIC2800-G1JSYML-TR
- Part No.:
- MIC2800-G1JSYML-TR
- Manufacturer:
- Microchip Technology
- Category:
- Voltage Regulators - Linear + Switching
- Package:
- 16-VFQFN
- Datasheet:
-
MIC2800-G1JSYML-TR.pdf
- Description:
- IC REG TRPL BUCK/LNR 2MHZ 16QFN
- Quantity:
- Payment:
- Shipping:
Inventory:4,704
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Product details
Overview
MIC2800-G1JSYML-TR from Microchip Technology is a digital power management IC integrating a 2 MHz, 600 mA synchronous buck DC/DC converter and two independent 300 mA LDOs (LDO1 and LDO2) in a single 16-pin 3 mm × 3 mm QFN package. It delivers three regulated outputs with adjustable POR delay, LOWQ ultra-low-noise light-load mode (30 µA total IQ), and thermal/current protection - optimized for embedded MPU core and I/O rail sequencing in battery-powered SAMA5D2-based systems.
For engineers reviewing the MIC2800-G1JSYML-TR datasheet, MIC2800-G1JSYML-TR pinout, MIC2800-G1JSYML-TR application, or MIC2800-G1JSYML-TR equivalent, key selection criteria include its dual-LDO architecture with LDO1 powered from the DC/DC output, LOWQ mode's 75 µVRMS noise performance, 2.7–5.5 V input range, and support for backup-power-safe interfacing via clamping-free LOWQ/POR pins.
Technical Context
The MIC2800-G1JSYML-TR implements a hybrid regulation architecture: the main DC/DC converter operates in fixed-frequency 2 MHz PWM mode (up to 600 mA) or transitions to LOWQ linear-regulator mode (≤60 mA, 30 µA IQ) controlled by the dedicated LOWQ pin. LDO1 draws input directly from the DC/DC output, enabling efficient 1.8 V → 1.5 V or 1.2 V conversion; LDO2 is independently powered from VIN.
Its POR output provides open-drain undervoltage monitoring across all three outputs with programmable delay (via CSET capacitor), while SGND/PGND separation isolates signal and power return paths. The device supports leakage-free host MPU interface under backup power due to ESD structures without rail-clamping diodes on LOWQ and POR pins.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 2.7 V to 5.5 V - supports single-cell Li-ion, USB, or industrial 3.3 V/5 V rails without external pre-regulation. |
| DC/DC Output Current | 600 mA max in PWM mode - sufficient to power ARM Cortex-A5 cores and DDR memory I/O rails. |
| LDO1/LDO2 Output Current | 300 mA each - enables simultaneous powering of processor core (LDO1) and peripheral I/O (LDO2) with independent enable control. |
| LOWQ Mode IQ | 30 µA total - extends battery life in sleep states while maintaining regulated outputs with <75 µVRMS noise. |
| Output Noise (LOWQ) | 75 µVRMS (10 Hz–100 kHz) - avoids interference with sensitive RF sections during low-power operation. |
| Package | 16-pin 3 mm × 3 mm QFN - compact footprint with separate SGND/PGND pins for optimal EMI control and thermal dissipation (θJA = 45°C/W). |
| POR Delay Programmability | Capacitor-set (CSET pin) - enables precise power-rail sequencing up to 1 s, critical for multi-rail MPUs like SAMA5D2. |
Pinout & Package
Package: 16-pin, 3 mm × 3 mm, 0.5 mm pitch QFN with exposed thermal pad (pin 1 marked by dot). SGND and PGND are physically separated to minimize noise coupling between analog control and high-current switching paths.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 1 (LOWQ) | Mode Control Input | Active-low logic input selecting PWM (HIGH) or LOWQ linear (LOW); clamping-free for backup-domain GPIO interfacing. |
| Pin 2 (BIAS) | Internal Bias Supply | Supplies internal reference/control circuitry via 6 Ω resistor; requires 0.1 µF ceramic bypass to SGND. |
| Pin 3 (SGND) | Signal Ground | Return path for BIAS, FB, CSET, POR, EN1/EN2 - must be routed separately from PGND to avoid noise injection. |
| Pin 4 (PGND) | Power Ground | Return path for SW, VIN, LDO2 - connects to high-current DC/DC and LDO2 loops; ties to thermal pad. |
| Pin 5 (SW) | Switch Node | Drives external inductor; high dv/dt node requiring short, isolated routing away from analog traces. |
| Pins 6 & 7 (VIN) | Input Power Rails | Dual VIN pins - both must be tied together externally to supply DC/DC switch and LDO2; requires ≥4.7 µF ceramic bypass to PGND. |
| Pin 8 (LDO2) | LDO2 Output | 300 mA regulated output powered from VIN; dropout as low as 70 mV @ 150 mA (VOUT ≥ 2.7 V). |
| Pin 9 (FB) | DC/DC Feedback | Connects to DC/DC output for fixed-voltage versions; sets output voltage via internal resistor divider (800 mV reference). |
| Pin 10 (LDO) | LOWQ Linear Regulator Output | Provides output current in LOWQ mode; also supplies LDO1 in PWM mode - must connect to DC/DC VOUT. |
| Pin 11 (LDO1) | LDO1 Output | 300 mA regulated output powered from Pin 10 (LDO); ideal for low-noise core rails (e.g., 1.2 V, 1.5 V). |
| Pin 12 (POR) | Power-on Reset Flag | Open-drain output asserting LOW if any enabled output falls below 90% nominal; clamping-free for backup-power pull-up. |
| Pin 13 (CSET) | POR Delay Timing | Current source (1.25 µA) charging external capacitor to set POR high-to-low delay; delay (µs) = CSET (pF). |
| Pin 14 (CBYP) | Reference Bypass | Connects 0.1 µF capacitor to SGND to reduce reference noise and improve PSRR; optional but recommended. |
| Pin 15 (EN1) | DC/DC + LDO1 Enable | Active-high CMOS input enabling both DC/DC and LDO1; VIH ≥ 1.0 V, no floating allowed. |
| Pin 16 (EN2) | LDO2 Enable | Active-high CMOS input enabling LDO2 only; independent control enables flexible power sequencing. |
Key Features
| Feature | Design Value |
|---|---|
| LOWQ Ultra-Low-Noise Mode | Reduces total IQ to 30 µA while delivering clean 75 µVRMS output - eliminates PFM ripple that disrupts RF receivers. |
| Independent Dual LDO Control | EN1 and EN2 allow staggered startup/shutdown of DC/DC+LDO1 vs. LDO2 - essential for MPU core/I/O rail sequencing compliance. |
| Backup-Power-Safe Interface Pins | LOWQ and POR pins lack rail-clamping ESD diodes - prevent parasitic leakage when main power is off and host GPIOs remain active on backup domain. |
| Programmable POR Delay | CSET pin enables precise power-good assertion timing (up to 1 s) via external capacitor - ensures correct voltage ramp order for multi-rail processors. |
| Thermal & Current Protection | Integrated overtemperature shutdown (160°C) and per-channel current limiting - prevents damage during overload or poor PCB thermal design. |
Applications
| Embedded MPU Power Sequencing | Portable Wearable Systems |
|---|---|
Use Scenario: Powering Microchip SAMA5D2 MPU with independent 1.2 V core (LDO1), 3.3 V I/O (LDO2), and 1.8 V DDR (DC/DC) rails. IC Role / Device Role / Timing Role: Single-chip triple-output PMIC providing synchronized enable control, POR flag generation, and programmable sequencing delay. Use Value: Eliminates discrete sequencing ICs and reduces BOM count by integrating DC/DC + dual LDOs + POR in 9 mm². | Use Scenario: Battery-powered fitness tracker requiring ultra-low standby current and clean sensor/RF supply. IC Role / Device Role / Timing Role: Primary power source enabling LOWQ mode during sleep (30 µA IQ) and fast PWM wake-up (<83 µs turn-on). Use Value: Extends battery life >3× versus standard buck converters by eliminating light-load PFM noise and leakage. |
| Low-Power RF Subsystems | Backup Power Management |
Use Scenario: Supplying 1.8 V LNA and 3.3 V transceiver in Bluetooth LE module with co-located RF and digital circuits. IC Role / Device Role / Timing Role: DC/DC powers digital baseband; LOWQ-mode LDO1 supplies RF analog section with 75 µVRMS noise floor. Use Value: Prevents switching noise from degrading receiver sensitivity (e.g., -95 dBm) without adding ferrite beads or extra LDOs. | Use Scenario: Real-time clock (RTC) and SRAM retention during main power loss in industrial controller. IC Role / Device Role / Timing Role: LDO2 remains active from backup battery while DC/DC and LDO1 shut down; POR signals main system reset. Use Value: Clamping-free LOWQ/POR pins allow direct connection to backup-domain MCU GPIOs - no level shifters or isolation required. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar multi-rail power management applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MIC2810-G1JSYML-TR | Same pinout and feature set, but supports higher DC/DC output current (1 A vs. 600 mA) and includes integrated watchdog timer. | Better suited for higher-performance MPUs (e.g., SAMA7G5) requiring >600 mA core current and system-level fault recovery. | Select MIC2810-G1JSYML-TR when core load exceeds 600 mA or watchdog functionality is required; otherwise, MIC2800-G1JSYML-TR offers cost and size advantage. |
| TPS65023RSBR | Triple-output PMIC (2 buck + 1 LDO) with I²C interface, dynamic voltage scaling, and different pinout; no LOWQ mode. | Requires firmware control and PCB redesign; lacks ultra-low-noise light-load capability for RF-sensitive designs. | Choose TPS65023RSBR only if I²C programmability and DVS are mandatory; MIC2800-G1JSYML-TR provides simpler, lower-noise, pin-compatible solution for fixed-voltage MPU rails. |
Compared with MIC2810-G1JSYML-TR and TPS65023RSBR, the MIC2800-G1JSYML-TR delivers optimal balance of integration, ultra-low-noise LOWQ operation, and minimal footprint for cost-sensitive, battery-powered MPU applications where 600 mA DC/DC current suffices and I²C control is unnecessary.
Availability
MIC2800-G1JSYML-TR is available at Aetrix Electronics and suitable for embedded MPU power sequencing, portable wearable systems, and low-power RF subsystems requiring stable component supply, long-term lifecycle support, and consistent parametric performance across production batches.
Supply support for MIC2800-G1JSYML-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
Microchip Technology Inc. is a leading provider of microcontroller, mixed-signal, analog, and Flash-IP solutions, serving automotive, industrial, consumer, and communications markets with high-reliability semiconductor products.
The MIC2800-G1JSYML-TR belongs to Microchip's digital power management IC product line, designed specifically to simplify power architecture for ARM-based embedded processors by integrating multiple regulated rails, sequencing control, and low-noise operation in minimal space.
FAQ
What is the function of the LOWQ pin on the MIC2800-G1JSYML-TR?
The LOWQ pin on the MIC2800-G1JSYML-TR is an active-low control input that selects between two operating modes: when pulled HIGH (>1 V), the device operates in full-power 2 MHz PWM mode delivering up to 600 mA; when pulled LOW (<0.2 V), it enters LOWQ mode, disabling the DC/DC switcher and regulating output via a low-noise linear path with 30 µA total quiescent current. The MIC2800-G1JSYML-TR's LOWQ pin has no rail-clamping diodes, enabling safe interfacing with backup-power domain GPIOs.
How does the POR output behave on the MIC2800-G1JSYML-TR?
The POR output on the MIC2800-G1JSYML-TR is an open-drain signal that asserts LOW whenever any enabled output (DC/DC, LDO1, or LDO2) falls below 90% of its nominal voltage. Its rising edge is programmable via a capacitor on the CSET pin (delay = CSET value in pF), while falling edge response is immediate. The MIC2800-G1JSYML-TR POR pin supports backup-power pull-up due to its clamping-free ESD structure, making it compatible with always-on host controllers.
Can the MIC2800-G1JSYML-TR power both core and I/O rails of a processor simultaneously?
Yes, the MIC2800-G1JSYML-TR is explicitly designed for this use case: LDO1 (300 mA) draws power from the DC/DC output and supplies low-noise core rails (e.g., 1.2 V), while LDO2 (300 mA) draws directly from VIN to power I/O rails (e.g., 3.3 V). Independent EN1 and EN2 pins allow precise sequencing - for example, enabling LDO2 first for I/O initialization, then DC/DC + LDO1 for core boot. This capability is confirmed in the MIC2800-G1JSYML-TR typical application circuit with SAMA5D2.
What is the recommended output capacitor for LDO2 on the MIC2800-G1JSYML-TR?
The MIC2800-G1JSYML-TR datasheet specifies a minimum 2.2 µF ceramic output capacitor for LDO2, placed close to Pin 8 (LDO2) and PGND. This value ensures stability across the full 100 µA–300 mA load range and supports the specified 75 mV dropout at 150 mA. Larger values (e.g., 10 µF) may improve transient response but are not required for basic operation. The MIC2800-G1JSYML-TR's LDO2 maintains 75 dB PSRR at 1 kHz with this configuration.
Does the MIC2800-G1JSYML-TR support adjustable DC/DC output voltage?
Yes, the MIC2800-G1JSYML-TR supports adjustable DC/DC output voltage via the FB pin: connecting an external resistor divider between VOUT, FB, and GND sets the output using the internal 800 mV reference. Fixed-output variants (e.g., MIC2800-G1JSYML-TR) have the divider integrated, so FB is connected directly to VOUT. The MIC2800-G1JSYML-TR's FB pin draws only 1 nA, minimizing divider current error and enabling high-impedance programming for precision applications.
MIC2800-G1JSYML-TR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- -
- Package/Case:
- 16-VFQFN
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Topology:
- Step-Down (Buck) (1), Linear (LDO) (2)
- Number of Outputs:
- 3
- Frequency - Switching:
- 2MHz
- Voltage/Current - Output 1:
- 1.8V, 600mA
- Voltage/Current - Output 2:
- 1.25V, 300mA
- Voltage/Current - Output 3:
- 3.3V, 300mA
- w/LED Driver:
- No
- w/Supervisor:
- No
- w/Sequencer:
- No
- Voltage - Supply:
- 2.7V ~ 5.5V
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-QFN (3x3)
MIC2800-G1JSYML-TR FAQ
1.How can I place an order for MIC2800-G1JSYML-TR through Aetrix?
Please submit a Request for Quotation (RFQ) for MIC2800-G1JSYML-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 MIC2800-G1JSYML-TR reliable?
The price and inventory of MIC2800-G1JSYML-TR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MIC2800-G1JSYML-TR is usually 5 days.
3.What payment methods are accepted for MIC2800-G1JSYML-TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MIC2800-G1JSYML-TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MIC2800-G1JSYML-TR?
MIC2800-G1JSYML-TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MIC2800-G1JSYML-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 MIC2800-G1JSYML-TR?
For technical support, including MIC2800-G1JSYML-TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MIC2800-G1JSYML-TR requirements.
6.How does Aetrix verify that MIC2800-G1JSYML-TR is sourced from the original manufacturer or authorized distributors?
All MIC2800-G1JSYML-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 MIC2800-G1JSYML-TR meets industry standards.
7.What is the process for return or replacement of MIC2800-G1JSYML-TR?
All MIC2800-G1JSYML-TR units undergo pre-shipment inspection (PSI). If there is an issue with MIC2800-G1JSYML-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 MIC2800-G1JSYML-TR part is unused and in its original packaging.
Return procedure for MIC2800-G1JSYML-TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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