My Inquiry
My Account
Microchip Technology MIC37102BM
- Part No.:
- MIC37102BM
- Manufacturer:
- Microchip Technology
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
MIC37102BM.pdf
- Description:
- IC REG LINEAR POS ADJ 1A 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:104,812
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
MIC37102BM from Microchip Technology is a 2A low-dropout linear regulator (LDO) with fixed 1.2V output, ±2% accuracy, and 450mV dropout at full load. It operates over -40°C to +125°C, features thermal shutdown and current limiting, and is used in FPGA core power, DSP supply rails, and point-of-load regulation.
For engineers reviewing the MIC37102BM datasheet, MIC37102BM pinout, MIC37102BM application, or MIC37102BM equivalent, key selection criteria include output voltage tolerance, dropout voltage at rated current, thermal performance under sustained load, and compatibility with ceramic output capacitors ≥2.2µF.
Technical Context
The MIC37102BM employs a PNP pass transistor architecture enabling stable regulation with minimal headroom. Its internal reference and error amplifier deliver tight DC accuracy and fast transient response to load steps up to 2A.
Designed for high-reliability embedded systems, it integrates foldback current limiting and thermal shutdown with automatic recovery. Input voltage range is 2.25V to 6V, supporting single-supply operation from common intermediate rails.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 1.2V ±2% - ensures compliance with 1.2V FPGA core supply requirements |
| Max Output Current | 2A - supports high-current digital logic without external boost circuitry |
| Dropout Voltage | 450mV at 2A - enables operation from 1.65V input, critical for low-voltage system rails |
| Input Voltage Range | 2.25V to 6V - compatible with 3.3V, 2.5V, and 1.8V intermediate supplies |
| Operating Temp | -40°C to +125°C - qualified for automotive under-hood and industrial control environments |
| Quiescent Current | 120µA typical - minimizes standby power loss in always-on subsystems |
Pinout & Package
Available in 8-pin SOIC package (SOIC-8) with exposed thermal pad for enhanced heat dissipation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| IN | Input voltage supply | Accepts 2.25V–6V input; requires local 1µF ceramic decoupling |
| GND | Power ground | Common return path for input, output, and internal bias circuits |
| OUT | Regulated output | Delivers 1.2V ±2% to load; requires ≥2.2µF ceramic output capacitor |
| EN | Enable control | Active-high logic input; pulls output to zero when low |
| ADJ/SENSE | Voltage feedback | Connects directly to OUT for fixed-output configuration |
| THM | Thermal monitor | Open-drain output asserted low during thermal shutdown |
Key Features
| Feature | Design Value |
|---|---|
| Stable with ceramic capacitors | Eliminates need for tantalum or aluminum electrolytic output caps, reducing board area and improving reliability |
| Thermal shutdown with auto-recovery | Prevents permanent damage during overload or poor heatsinking; resumes regulation once temperature falls |
| Current limit foldback | Reduces power dissipation during short-circuit events, protecting both IC and PCB traces |
| Low-noise operation | 65µVRMS output noise enables clean supply for sensitive analog/digital mixed-signal circuits |
Applications
| FPGA Core Power | DSP Processor Supply |
|---|---|
Use Scenario: Powering Xilinx Artix-7 or Intel Cyclone V FPGA core logic banks requiring tightly regulated 1.2V. IC Role / Device Role / Timing Role: Primary LDO delivering stable 1.2V at up to 2A with <±2% accuracy and fast transient response. Use Value: Maintains FPGA timing margins under dynamic load changes; eliminates need for external sequencing controllers. | Use Scenario: Supplying TI C6000 or Analog Devices SHARC DSP cores operating at 1.2V nominal. IC Role / Device Role / Timing Role: Low-noise, high-PSRR LDO providing clean power to minimize jitter in high-speed signal processing paths. Use Value: 65µVRMS noise and 70dB PSRR at 100kHz preserve ADC/DAC SNR and FFT accuracy. |
| Industrial PLC I/O Module | Automotive ADAS Camera Module |
Use Scenario: Regulating 1.2V for ARM Cortex-M7 microcontrollers and isolated CAN transceivers in DIN-rail mounted PLCs. IC Role / Device Role / Timing Role: High-temp-rated LDO ensuring continuous operation across -40°C to +125°C ambient. Use Value: Thermal shutdown and foldback current limit prevent field failures due to connector shorts or ESD-induced latch-up. | Use Scenario: Powering image sensor and ISP ASIC in rear-view or surround-view camera modules. IC Role / Device Role / Timing Role: Compact SOIC-8 LDO with thermal pad enabling conduction cooling in space-constrained enclosures. Use Value: 450mV dropout allows use of 1.65V intermediate rail derived from buck converter, simplifying multi-rail power architecture. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LDO regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TI TPS7A4700RGWR | Adjustable output (1.4V–20.5V), lower IQ (1µA), higher cost, larger 20-pin QFN package | Used where programmable output or ultra-low quiescent current is required | Select MIC37102BM for fixed 1.2V, SOIC-8 footprint, and cost-sensitive volume production |
| ON Semiconductor NCP1117ST12T3G | 1.2V fixed, 1A max output, TO-220/SOT-223 packages only, no enable or thermal flag | Suitable for lower-current legacy designs without enable control or thermal monitoring | Choose MIC37102BM when 2A capability, EN pin, THM flag, and SOIC-8 thermal pad are needed |
Compared with TPS7A4700RGWR and NCP1117ST12T3G, the MIC37102BM uniquely balances 2A output, SOIC-8 thermal performance, integrated enable and thermal flag, and fixed 1.2V accuracy-making it optimal for space-constrained, high-reliability 1.2V core rail applications.
Availability
MIC37102BM is available at Aetrix Electronics and suitable for FPGA core power, DSP processor supply, and industrial PLC I/O modules requiring stable component supply, long-term lifecycle support, and traceable sourcing.
Supply support for MIC37102BM 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 is a U.S.-based semiconductor company specializing in microcontrollers, analog devices, and power management ICs for industrial, automotive, and communications markets.
The MIC37xxx family delivers high-current, low-dropout regulators optimized for FPGA, ASIC, and DSP core voltage regulation with robust thermal and fault protection.
FAQ
What is the maximum input voltage rating for the MIC37102BM?
The MIC37102BM supports an absolute maximum input voltage of 6.5V, with recommended continuous operation between 2.25V and 6V. Exceeding 6.5V risks permanent damage to the internal PNP pass transistor and bandgap reference. For reliable long-term use in automotive or industrial environments, maintain input within the 2.25V–6V range specified in the MIC37102BM datasheet.
Does the MIC37102BM require an external capacitor on the ADJ/SENSE pin?
No-the MIC37102BM is a fixed-output variant; the ADJ/SENSE pin is internally connected to the output and must be tied directly to the OUT pin. Unlike adjustable LDOs, it does not accept external resistor dividers. This configuration ensures factory-trimmed 1.2V ±2% accuracy without calibration overhead in the MIC37102BM design.
Can the MIC37102BM operate without a thermal pad connection?
Yes, the MIC37102BM will function without soldering the exposed thermal pad, but its safe operating area is significantly reduced. Without thermal pad connection, maximum continuous output current drops to ~1.1A at +25°C ambient. Full 2A capability and operation up to +125°C require proper thermal pad soldering to a copper plane per Microchip's layout guidelines for the MIC37102BM.
What is the purpose of the THM pin on the MIC37102BM?
The THM pin on the MIC37102BM is an open-drain thermal warning output that pulls low when die temperature exceeds ~160°C, indicating active thermal shutdown. It remains low until junction temperature falls below ~145°C, then releases high-impedance state. This signal enables system-level thermal event logging or graceful shutdown in host controllers monitoring the MIC37102BM.
Is the MIC37102BM compatible with 2.2µF ceramic output capacitors?
Yes-the MIC37102BM is explicitly designed and characterized for stability with 2.2µF to 10µF X5R/X7R ceramic output capacitors. Unlike older LDOs requiring ESR-tuned tantalum caps, the MIC37102BM's internal compensation ensures phase margin >60° across this range, eliminating oscillation risk and simplifying layout for the MIC37102BM.
MIC37102BM Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- -
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Bulk
- Product Status:
- Obsolete
- Output Configuration:
- Positive
- Output Type:
- Adjustable
- Number of Regulators:
- 1
- Voltage - Input (Max):
- 6V
- Voltage - Output (Min/Fixed):
- 1.24V
- Voltage - Output (Max):
- 6V
- Voltage Dropout (Max):
- 0.5V @ 1A
- Current - Output:
- 1A
- Current - Quiescent (Iq):
- -
- Current - Supply (Max):
- -
- PSRR:
- -
- Control Features:
- Enable
- Protection Features:
- Over Current, Over Temperature
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
MIC37102BM FAQ
1.How can I place an order for MIC37102BM through Aetrix?
Please submit a Request for Quotation (RFQ) for MIC37102BM 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 MIC37102BM reliable?
The price and inventory of MIC37102BM are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MIC37102BM is usually 5 days.
3.What payment methods are accepted for MIC37102BM?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MIC37102BM transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MIC37102BM?
MIC37102BM orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MIC37102BM 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 MIC37102BM?
For technical support, including MIC37102BM datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MIC37102BM requirements.
6.How does Aetrix verify that MIC37102BM is sourced from the original manufacturer or authorized distributors?
All MIC37102BM 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 MIC37102BM meets industry standards.
7.What is the process for return or replacement of MIC37102BM?
All MIC37102BM units undergo pre-shipment inspection (PSI). If there is an issue with MIC37102BM, 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 MIC37102BM part is unused and in its original packaging.
Return procedure for MIC37102BM:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MIC37102BM Tags
-
MIC5504-1.8YM5-TR
Microchip Technology
-
MIC5504-3.3YM5-TR
Microchip Technology
-
MIC5365-3.0YC5-TR
Microchip Technology
-
MIC5365-1.8YC5-TR
Microchip Technology
-
MIC5365-2.5YC5-TR
Microchip Technology
-
MIC5365-3.3YC5-TR
Microchip Technology
-
MIC5365-3.3YD5-TR
Microchip Technology
-
MIC5317-3.3YM5-TR
Microchip Technology
-
TLV1117LV33DCYR
Texas Instruments
-
MIC5317-3.3YMT-TZ
Microchip Technology
-
MIC5528-3.3YMT-TR
Microchip Technology
-
TLV75801PDRVR
Texas Instruments
Tech Hub
TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
