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Microchip Technology MIC5252-3.0BML-TR
- Part No.:
- MIC5252-3.0BML-TR
- Manufacturer:
- Microchip Technology
- Package:
- 6-VDFN Exposed Pad, 6-MLF®
- Datasheet:
-
MIC5252-3.0BML-TR.pdf
- Description:
- IC REG LINEAR 3V 150MA 6MLF
- Quantity:
- Payment:
- Shipping:
Inventory:1,943
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Product details
Overview
MIC5252-3.0BML-TR from Micrel is a 3.0V, 150mA ultra-low-noise CMOS LDO voltage regulator in a 6-pin 2mm × 2mm MLF™ package, featuring 1% initial output accuracy, 135mV dropout at 150mA, and 30µV(rms) output noise - optimized for RF power stages and battery-powered handheld devices requiring clean, stable bias.
For engineers reviewing the MIC5252-3.0BML-TR datasheet, MIC5252-3.0BML-TR pinout, MIC5252-3.0BML-TR application, or MIC5252-3.0BML-TR equivalent, key selection criteria include low-noise performance with bypass capacitor support, TTL-compatible enable control, ceramic-capacitor stability, thermal shutdown protection, and high PSRR (≥48dB at 10kHz) under low input headroom.
Technical Context
The MIC5252-3.0BML-TR integrates a precision bandgap reference with active noise cancellation and a quick-start bypass circuit, enabling fast turn-on even with 0.01µF–1.0µF CBYP capacitors. Its CMOS pass element delivers ultra-low quiescent current (90µA typical) and near-zero shutdown current (<1µA).
It employs an internal active clamp for rapid output discharge during disable, supports input voltages from 2.7V to 6.0V, and maintains regulation down to zero load - critical for RAM keep-alive and intermittent-power systems. Thermal shutdown activates at 150°C with 10°C hysteresis.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | 3.0V ±1% initial accuracy - ensures precise biasing of RF ICs and analog sensors without external trimming. |
| Dropout Voltage | 135mV @ 150mA - enables operation from single-cell Li-ion (3.0V min) or dual-cell alkaline (3.0V after discharge) with full load capability. |
| Output Noise | 30µV(rms), 10Hz–100kHz - meets stringent spectral purity requirements for VCOs, LNAs, and PLL power rails. |
| PSRR | ≥48dB @ 10kHz (VIN = VOUT + 0.3V) - suppresses switching noise from DC/DC converters feeding the LDO input. |
| Quiescent Current | 90µA typical @ no load - extends battery life in always-on wireless modules and IoT edge nodes. |
| Enable Threshold | VIH = 1.6V, VIL = 0.4V - compatible with 1.8V/3.3V logic families and allows direct connection to microcontroller GPIOs. |
| Thermal Resistance | θJA = 90°C/W (MLF™ package) - supports 150mA continuous output in compact layouts with minimal copper area. |
Pinout & Package
Package: 6-pin 2mm × 2mm MLF™ (exposed pad grounded), RoHS-compliant, moisture-sensitive level 3.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - EN | Enable/Shutdown Input | CMOS-compatible active-high control; must be pulled high (>1.6V) to enable output; floating prohibited. |
| 2 - GND | Ground Reference | Main signal and power ground; internally connected to exposed thermal pad - requires external PCB connection. |
| 3 - IN | Supply Input | Input voltage range 2.7V–6.0V; requires ≥1µF ceramic bypass to GND for stability and noise rejection. |
| 4 - OUT | Regulated Output | 3.0V output capable of sourcing 150mA; requires ≥1µF low-ESR ceramic capacitor to GND for loop stability. |
| 5 - NC | No Internal Connection | Unbonded pin - must remain unconnected; no routing or soldering required. |
| 6 - BYP | Noise Bypass Terminal | Connects to internal reference; 0.01µF–1.0µF capacitor to GND reduces output noise and improves PSRR. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low-noise regulation | 30µV(rms) output noise with 0.01µF BYP capacitor - eliminates need for secondary LC filtering in RF supply chains. |
| Active output discharge | Integrated N-channel clamp discharges OUT pin when disabled - prevents residual voltage hold-up on sensitive downstream circuitry. |
| Ceramic-capacitor stability | Stable with ≥1µF X7R/X5R ceramic output caps (ESR ≤300mΩ) - eliminates bulk tantalum or electrolytic components. |
| TTL-compatible enable | VIH = 1.6V minimum ensures reliable activation from 1.8V I/O domains without level shifters. |
| No-load regulation | Maintains 3.0V output with 0mA load - supports low-power sleep modes and memory retention without auxiliary circuits. |
Applications
| Cellular Front-End Modules | Wireless Sensor Node Power |
|---|---|
Use Scenario: Powering RF power amplifiers and low-noise amplifiers in GSM/UMTS/Wi-Fi front-end modules. IC Role / Device Role / Timing Role: Ultra-low-noise 3.0V bias supply with fast enable/disable sequencing synchronized to RF transmit/receive cycles. Use Value: 30µV(rms) noise floor prevents AM-to-PM distortion in PA stages and preserves receiver sensitivity below –100dBm. |
Use Scenario: Providing regulated 3.0V to BLE SoCs and MEMS sensors in battery-operated industrial condition monitors. IC Role / Device Role / Timing Role: Primary LDO delivering standby and active-mode power with <1µA shutdown current and sub-100µs wake-up latency. Use Value: 90µA quiescent current extends CR2032 battery life beyond 5 years in periodic-sampling deployments. |
| Portable Medical Diagnostics | Automotive Telematics Modems |
Use Scenario: Supplying analog front-ends and ADC reference circuits in handheld ECG and pulse oximetry units. IC Role / Device Role / Timing Role: Precision 3.0V rail with 1% initial accuracy and <2% variation over –40°C to +125°C for clinical-grade measurement integrity. Use Value: Tight line/load regulation (≤0.2%/≤1.5%) minimizes offset drift in 16-bit biomedical signal chains. |
Use Scenario: Biasing GNSS receivers and LTE modems in automotive infotainment and telematics control units. IC Role / Device Role / Timing Role: Secondary LDO fed from vehicle's 5V domain, providing clean 3.0V for RF sections amid engine cranking transients. Use Value: 50dB PSRR at 100Hz and active clamp discharge ensure modem lock stability during cold-crank voltage dips to 6V. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar ultra-low-noise LDO applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Torex XC6210B302MR-G | 3.0V, 150mA, 25µV(rms) noise, but no BYP pin; PSRR = 45dB @ 10kHz; SOT-25 package. | Lacks adjustable noise filtering via external capacitor; lower PSRR limits effectiveness with noisy DC/DC inputs. | Preferred only where board space is constrained and noise <25µV(rms) is mandatory without bypass tuning. |
| Analog Devices ADP160ACBZ-3.0-R7 | 3.0V, 150mA, 27µV(rms), no BYP pin; 165mV dropout @ 150mA; 170µA IQ; WLCSP-6 package. | Higher dropout and quiescent current reduce efficiency in low-headroom battery systems; no active discharge. | Suitable for space-constrained consumer wearables where footprint is prioritized over RF noise margin and fast shutdown. |
Compared with XC6210B302MR-G and ADP160ACBZ-3.0-R7, the MIC5252-3.0BML-TR uniquely combines user-tunable noise reduction (via BYP pin), active output discharge, and lowest dropout in its class - making it optimal for RF-critical, battery-sensitive designs where supply integrity directly impacts link budget and runtime.
Availability
MIC5252-3.0BML-TR is available at Aetrix Electronics and suitable for cellular front-end modules, wireless sensor nodes, portable medical diagnostics, and automotive telematics modems requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for MIC5252-3.0BML-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.
The MIC5252 product line was designed specifically for ultra-low-noise, low-quiescent-current regulation in handheld and battery-powered RF systems - emphasizing ceramic-capacitor compatibility, fast transient response, and robust enable/shutdown control.
FAQ
What is the maximum input voltage rating for MIC5252-3.0BML-TR?
The absolute maximum input voltage for MIC5252-3.0BML-TR is +7V, but the recommended operating range is +2.7V to +6.0V per the datasheet. Exceeding 6.0V risks violating safe operating area limits, especially at elevated temperatures. The device's dropout behavior and PSRR performance are specified within the 2.7V–6.0V range, and MIC5252-3.0BML-TR must not be operated continuously above 6.0V to ensure reliability and parametric compliance.
Does MIC5252-3.0BML-TR require an external bypass capacitor on the BYP pin?
While MIC5252-3.0BML-TR functions without a BYP capacitor, a 0.01µF ceramic capacitor between BYP and GND is required to achieve the specified 30µV(rms) output noise. Omitting it degrades noise performance to ~100µV(rms) and reduces PSRR by up to 15dB at 10kHz. The BYP capacitor value can be increased up to 1.0µF for further noise suppression, though turn-on time increases slightly - MIC5252-3.0BML-TR's quick-start circuit mitigates this delay.
Can MIC5252-3.0BML-TR operate with zero load current?
Yes, MIC5252-3.0BML-TR is explicitly characterized for no-load stability and maintains regulation at 0mA output current. This is confirmed in the Applications Information section and supported by typical characteristics showing stable ground current and output voltage down to 0mA. Unlike many LDOs, MIC5252-3.0BML-TR does not require a minimum load resistor, making it ideal for RAM keep-alive and deep-sleep power domains.
What is the thermal shutdown behavior of MIC5252-3.0BML-TR?
MIC5252-3.0BML-TR activates thermal shutdown at 150°C junction temperature and remains latched off until die temperature falls by 10°C (hysteresis). Once cooled, it automatically resumes regulation without external reset. The MLF™ package's θJA of 90°C/W means that at 150mA and 3.0V output from a 5.0V input, power dissipation is ~300mW - requiring adequate PCB copper area to avoid repeated cycling. MIC5252-3.0BML-TR's fault flag is not exposed externally; shutdown is purely self-protective.
Is MIC5252-3.0BML-TR pin-compatible with other MIC5252 variants in the MLF™ package?
Yes, all MIC5252-x.xBML variants share identical 6-pin MLF™ pinout (EN, GND, IN, OUT, NC, BYP), including MIC5252-3.0BML-TR. Output voltage is factory-set and non-adjustable; swapping variants requires no PCB changes but mandates verification of system-level voltage tolerance and load transient response. The marking "630" on MIC5252-3.0BML-TR confirms its 3.0V output, consistent with the ordering table.
MIC5252-3.0BML-TR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- -
- Package/Case:
- 6-VDFN Exposed Pad, 6-MLF®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Discontinued at Digi-Key
- Output Configuration:
- Positive
- Output Type:
- Fixed
- Number of Regulators:
- 1
- Voltage - Input (Max):
- 6V
- Voltage - Output (Min/Fixed):
- 3V
- Voltage - Output (Max):
- -
- Voltage Dropout (Max):
- 0.25V @ 150mA
- Current - Output:
- 150mA
- Current - Quiescent (Iq):
- 150 µA
- Current - Supply (Max):
- 200 µA
- PSRR:
- 63dB ~ 48dB (10Hz ~ 10kHz)
- Control Features:
- Enable
- Protection Features:
- Over Current, Over Temperature, Under Voltage Lockout (UVLO)
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 6-DFN (2x2)
MIC5252-3.0BML-TR FAQ
1.How can I place an order for MIC5252-3.0BML-TR through Aetrix?
Please submit a Request for Quotation (RFQ) for MIC5252-3.0BML-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 MIC5252-3.0BML-TR reliable?
The price and inventory of MIC5252-3.0BML-TR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MIC5252-3.0BML-TR is usually 5 days.
3.What payment methods are accepted for MIC5252-3.0BML-TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MIC5252-3.0BML-TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MIC5252-3.0BML-TR?
MIC5252-3.0BML-TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MIC5252-3.0BML-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 MIC5252-3.0BML-TR?
For technical support, including MIC5252-3.0BML-TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MIC5252-3.0BML-TR requirements.
6.How does Aetrix verify that MIC5252-3.0BML-TR is sourced from the original manufacturer or authorized distributors?
All MIC5252-3.0BML-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 MIC5252-3.0BML-TR meets industry standards.
7.What is the process for return or replacement of MIC5252-3.0BML-TR?
All MIC5252-3.0BML-TR units undergo pre-shipment inspection (PSI). If there is an issue with MIC5252-3.0BML-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 MIC5252-3.0BML-TR part is unused and in its original packaging.
Return procedure for MIC5252-3.0BML-TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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