My Inquiry
My Account
Microchip Technology MIC5206-4.0BM5-TR
- Part No.:
- MIC5206-4.0BM5-TR
- Manufacturer:
- Microchip Technology
- Package:
- SC-74A, SOT-753
- Datasheet:
-
MIC5206-4.0BM5-TR.pdf
- Description:
- IC REG LINEAR 4V 150MA SOT23-5
- Quantity:
- Payment:
- Shipping:
Inventory:1,488
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
MIC5206-4.0BM5-TR from Micrel is a 150mA, 4.0V fixed-output low-dropout linear regulator in SOT-23-5 package, featuring 165mV dropout at full load, 600µA ground current at 100mA, and ±1% initial output voltage accuracy. It integrates CMOS/TTL-compatible enable control, open-collector error flag for undervoltage detection, and reversed-battery protection-designed for battery-powered portable electronics requiring stable, low-noise power.
For engineers reviewing the MIC5206-4.0BM5-TR datasheet, MIC5206-4.0BM5-TR pinout, MIC5206-4.0BM5-TR application, or MIC5206-4.0BM5-TR equivalent, key selection criteria include dropout performance at 150mA, logic-controlled shutdown behavior, error flag threshold (–5% VOUT), thermal resistance (220°C/W), and compatibility with ceramic or tantalum output capacitors ≥1.0µF.
Technical Context
The MIC5206-4.0BM5-TR uses a PNP pass transistor architecture enabling ultra-low dropout (17mV typical at light loads) and minimal ground current across load range. Its internal undervoltage monitor compares output against reference with 3% hysteresis and drives an open-collector FLAG pin active low below –5% nominal.
Unlike standard LDOs, it supports reversed-battery protection without external components and maintains stability with no-load operation-critical for CMOS RAM keep-alive circuits. The SOT-23-5 variant lacks BYP pin; noise performance is specified at 75dB PSRR (10kHz) and 260nV/√Hz only for MSOP-8 versions, not applicable to MIC5206-4.0BM5-TR.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 4.0V ±1% over –40°C to +125°C; enables direct replacement of 4.0V logic rails without feedback network. |
| Max Output Current | 150mA guaranteed; supports microcontroller cores, RF front-ends, and sensor interfaces in space-constrained designs. |
| Dropout Voltage | 165mV at 150mA; allows operation from 4.165V input-ideal for single-cell Li-ion or dual-cell alkaline systems. |
| Ground Current | 600µA at 100mA load; extends battery life in always-on monitoring applications versus typical 1–2mA competitors. |
| Enable Threshold | VIL ≤ 0.4V (shutdown), VIH ≥ 2.0V (enable); compatible with 3.3V/5V GPIO without level-shifting. |
| Error Flag | Open-collector FLAG pin asserts low when VOUT drops >5% below 4.0V; requires external pull-up for system fault signaling. |
| Thermal Resistance | θJA = 220°C/W on FR4 board; limits max continuous power dissipation to ~380mW at 40°C ambient. |
Pinout & Package
Package: SOT-23-5 (M5), 2.9mm × 1.6mm × 1.1mm body, surface-mount, RoHS-compliant lead finish.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - IN | Supply Input | Accepts 4.165V to 16V input; requires 1µF bypass capacitor if >10" trace length or battery source. |
| 2 - GND | Ground Reference | Common return for input, output, enable, and flag; must connect to low-impedance ground plane. |
| 3 - EN | Enable/Shutdown Input | CMOS/TTL-compatible; tie to IN for always-on operation; fast fall time (<100µs) required to avoid FLAG glitch during shutdown. |
| 4 - FLAG | Undervoltage Error Flag | Open-collector output; pull up to IN or system rail; signals fault when VOUT < 3.8V (–5% tolerance). |
| 5 - OUT | Regulated Output | Delivers 4.0V ±1% at up to 150mA; requires ≥1.0µF output capacitor (tantalum/aluminum, ESR ≤5Ω) for stability. |
Key Features
| Feature | Design Value |
|---|---|
| Reversed-battery protection | Withstands –20V input without damage or reverse current flow-eliminates need for external series diode. |
| Zero off-mode current | IGND ≤ 5µA in shutdown (VEN ≤ 0.18V); reduces standby power to near-zero in battery-critical systems. |
| Tight line/load regulation | ∆VO/VO ≤ 0.05% for VIN changes (4.165V–16V); ∆VO/VO ≤ 0.2% for IL = 0.1–150mA-minimizes voltage drift across operating conditions. |
| Current & thermal limiting | Internal foldback current limit (~320mA typ) and thermal shutdown at ~150°C prevent destruction under overload or poor heatsinking. |
| No-load stability | Remains in regulation with zero output load-enables use in memory backup circuits without dummy load resistors. |
Applications
| Cellular Telephone Power Management | Laptop Subsystem Regulation |
|---|---|
Use Scenario: Supplies 4.0V bias to RF power amplifier stages and baseband ICs in GSM/UMTS handsets. IC Role / Device Role / Timing Role: Primary LDO delivering clean, low-noise 4.0V rail with fast enable/disable for burst-mode transmission. Use Value: 165mV dropout enables operation down to 4.165V input-maximizing usable battery capacity from single-cell Li-ion (3.0–4.2V). | Use Scenario: Powers USB controller, card reader interface, or embedded security module in notebook sub-boards. IC Role / Device Role / Timing Role: Secondary LDO providing isolated 4.0V supply with independent enable control and fault reporting. Use Value: FLAG pin integration eliminates external supervisor IC; ±1% accuracy ensures compliance with USB 2.0 I/O voltage specs (3.6–4.4V). |
| PCMCIA VCC/VPP Switching | Industrial Sensor Node Power |
Use Scenario: Regulates VCC (3.3V/5.0V) and generates VPP programming voltage for PCMCIA/CompactFlash cards. IC Role / Device Role / Timing Role: Fixed-voltage LDO used in dual-rail PCMCIA socket design with logic-controlled sequencing via EN pin. Use Value: Reversed-battery protection prevents damage during hot-swap insertion; 150mA rating supports full-card operation including flash write cycles. | Use Scenario: Powers low-power microcontroller, analog sensor front-end, and wireless transceiver in battery-operated environmental monitors. IC Role / Device Role / Timing Role: Main system regulator with enable pin synchronized to sleep/wake cycles; FLAG monitors brownout during cold-weather deployment. Use Value: 600µA ground current at 100mA load extends 2xAA alkaline battery life to >12 months in periodic wake-up mode. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LDO regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MCP1700T-4002E/MB | 150mA, 4.0V fixed, 600mV dropout (typ), 1.6µA quiescent current, SOT-23-3 (no FLAG/EN) | No enable or error flag; simpler footprint but lacks system-level fault monitoring and sequencing control. | Select when board space is critical and supervisory features are handled externally. |
| TPS76340DBVR | 150mA, 4.0V fixed, 250mV dropout (typ), 85µA quiescent current, SOT-23-5 with EN/FLAG (same pinout) | Higher dropout reduces usable input range; FLAG threshold is –6% VOUT vs. –5% for MIC5206-4.0BM5-TR. | Select when lower quiescent current is prioritized over minimum input voltage headroom. |
Compared with MCP1700T-4002E/MB, MIC5206-4.0BM5-TR provides integrated enable and undervoltage flag-reducing BOM count by two discrete components. Against TPS76340DBVR, it delivers 85mV lower dropout at 150mA, enabling 120mV more margin before brownout in battery-fed systems.
Availability
MIC5206-4.0BM5-TR is available at Aetrix Electronics and suitable for cellular telephony, laptop subsystems, PCMCIA modules, and industrial sensor nodes requiring stable component supply, long-lifecycle support, and RoHS-compliant packaging.
Supply support for MIC5206-4.0BM5-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 high-performance analog, mixed-signal, and power management ICs before its acquisition by Microchip Technology in 2015.
The MIC5206 family was designed for ultra-low-noise, low-dropout regulation in portable battery-powered equipment-emphasizing minimal ground current, reversed-battery resilience, and integrated fault signaling without external components.
FAQ
What is the maximum input voltage rating for the MIC5206-4.0BM5-TR?
The MIC5206-4.0BM5-TR has an absolute maximum input voltage rating of +20V, but its recommended operating input range is +2.5V to +16V. Exceeding +16V may trigger internal protection mechanisms or reduce reliability. For 4.0V output, minimum functional input is 4.165V (VOUT + dropout), making it ideal for single-cell Li-ion (3.0–4.2V) with boost pre-regulation or dual-cell alkaline (2.4–3.2V) with higher-input variants.
Does the MIC5206-4.0BM5-TR require an external bypass capacitor on the BYP pin?
No-the MIC5206-4.0BM5-TR is the SOT-23-5 variant and does not include a BYP (reference bypass) pin. That feature is exclusive to the 8-pin MSOP (BMM/YMM) versions. This simplifies layout and reduces component count, though ultra-low-noise performance (260nV/√Hz) is not available in the MIC5206-4.0BM5-TR package.
How does the FLAG pin function on the MIC5206-4.0BM5-TR?
The FLAG pin on the MIC5206-4.0BM5-TR is an open-collector output that pulls low when output voltage falls more than ~5% below 4.0V (i.e., <3.8V). It requires an external pull-up resistor (typically 47kΩ to IN or system rail) and signals undervoltage faults to host controllers. During EN pin deactivation, ensure fall time <100µs to prevent false FLAG assertion.
Can the MIC5206-4.0BM5-TR operate without any load connected to the OUT pin?
Yes-the MIC5206-4.0BM5-TR remains stable and in regulation with zero output load, unlike many LDOs that require minimum load current. This makes it suitable for CMOS RAM keep-alive circuits, real-time clock backup supplies, and other ultra-low-power standby applications where output current may drop to near-zero between wake events.
What thermal derating applies to the MIC5206-4.0BM5-TR in a standard SOT-23-5 layout?
In a standard single-layer FR4 PCB without ground plane, the MIC5206-4.0BM5-TR has θJA = 220°C/W. At 40°C ambient, maximum safe power dissipation is ~380mW (calculated as (125°C − 40°C)/220°C/W), corresponding to ~95mA at 4.0V dropout (0.165V × 0.095A ≈ 15.7mW) - well within rating. For higher loads, add copper pour or thermal vias to reduce effective θJA.
MIC5206-4.0BM5-TR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- -
- Package/Case:
- SC-74A, SOT-753
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Discontinued at Digi-Key
- Output Configuration:
- Positive
- Output Type:
- Fixed
- Number of Regulators:
- 1
- Voltage - Input (Max):
- 16V
- Voltage - Output (Min/Fixed):
- 4V
- Voltage - Output (Max):
- -
- Voltage Dropout (Max):
- 0.35V @ 150mA
- Current - Output:
- 150mA
- Current - Quiescent (Iq):
- 150 µA
- Current - Supply (Max):
- 2.5 mA
- PSRR:
- -
- Control Features:
- Enable, Error Flag
- Protection Features:
- Over Current, Over Temperature, Reverse Polarity
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-23-5
MIC5206-4.0BM5-TR FAQ
1.How can I place an order for MIC5206-4.0BM5-TR through Aetrix?
Please submit a Request for Quotation (RFQ) for MIC5206-4.0BM5-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 MIC5206-4.0BM5-TR reliable?
The price and inventory of MIC5206-4.0BM5-TR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MIC5206-4.0BM5-TR is usually 5 days.
3.What payment methods are accepted for MIC5206-4.0BM5-TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MIC5206-4.0BM5-TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MIC5206-4.0BM5-TR?
MIC5206-4.0BM5-TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MIC5206-4.0BM5-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 MIC5206-4.0BM5-TR?
For technical support, including MIC5206-4.0BM5-TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MIC5206-4.0BM5-TR requirements.
6.How does Aetrix verify that MIC5206-4.0BM5-TR is sourced from the original manufacturer or authorized distributors?
All MIC5206-4.0BM5-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 MIC5206-4.0BM5-TR meets industry standards.
7.What is the process for return or replacement of MIC5206-4.0BM5-TR?
All MIC5206-4.0BM5-TR units undergo pre-shipment inspection (PSI). If there is an issue with MIC5206-4.0BM5-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 MIC5206-4.0BM5-TR part is unused and in its original packaging.
Return procedure for MIC5206-4.0BM5-TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MIC5206-4.0BM5-TR 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…
