My Inquiry
My Account
Analog Devices Inc./Maxim Integrated MAX8531EBTA8-T
- Part No.:
- MAX8531EBTA8-T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 6-WFBGA, CSPBGA
- Datasheet:
-
MAX8531EBTA8-T.pdf
- Description:
- IC REG LINEAR LDO
- Quantity:
- Payment:
- Shipping:
Inventory:5,000
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
MAX8531EBTA8-T from Maxim Integrated is a dual low-dropout linear regulator IC with low-noise output, designed for space-constrained battery-powered systems. It delivers 200mA from OUT1 and 150mA from OUT2 across 1.5V–3.3V output ranges, features 100mV typical dropout at 100mA, 40µVRMS output noise (with 0.01µF BP capacitor), and operates from 2.5V–6.5V input. It is used in digital cameras and handheld instruments requiring clean, compact dual-rail power.
For engineers reviewing the MAX8531EBTA8-T datasheet, MAX8531EBTA8-T pinout, MAX8531EBTA8-T application, or MAX8531EBTA8-T equivalent, this page provides verified technical context, package mapping, real-world design meaning of specifications, and validated alternative options - all confirmed against Maxim's official 2005 datasheet (Rev 1, 19-2711).
Technical Context
The MAX8531EBTA8-T integrates two independent LDOs with P-channel MOSFET pass transistors, enabling ultra-low quiescent current (130µA typ with both outputs active) and load-dependent dropout behavior. Its BP (bypass) pin connects to an internal resistor to form a low-pass filter, reducing output voltage noise to 40µVRMS (10Hz–100kHz) when paired with a 0.01µF ceramic capacitor.
Unlike the MAX8530, it omits the reset circuit but adds low-noise capability via the BP pin. Thermal shutdown activates at +160°C with 10°C hysteresis, and short-circuit protection sustains indefinite output shorts without damage. Both regulators include independent current limiting (min 210mA/165mA).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 2.5V to 6.5V - supports single-cell Li-ion (3.0–4.2V), 3.3V rail inputs, and legacy 5V supplies without external regulation. |
| OUT1 Output Current | Guaranteed 200mA - sufficient to power baseband processors or image sensors in digital cameras. |
| OUT2 Output Current | Guaranteed 150mA - suitable for I/O voltage rails or auxiliary logic in handheld instruments. |
| Dropout Voltage | 100mV (typ) at 100mA - enables >95% efficiency at light-to-moderate loads near end-of-battery life. |
| Output Noise | 40µVRMS (10Hz–100kHz) - achieved only with 0.01µF capacitor on BP pin; critical for analog sensor or ADC reference rails. |
| Quiescent Current | 130µA (both LDOs active) - ensures >1000-hour standby in always-on portable devices with 100mAh batteries. |
| Shutdown Current | <1µA - reduces system leakage during deep sleep modes in cordless phones and PDAs. |
Pinout & Package
MAX8531EBTA8-T is packaged in a 6-bump UCSP (1.16mm × 1.57mm × 0.6mm, 3×2 grid), optimized for minimal PCB footprint in ultra-thin portable devices. The UCSP uses solder bumps instead of leads; thermal dissipation relies on die attach and board-level copper area under the package.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| OUT2 | Regulator 2 output terminal | Delivers up to 150mA; requires ≥1µF output capacitor for stability; voltage set by factory-trimmed internal divider. |
| IN | Main input supply connection | Accepts 2.5V–6.5V; must be bypassed with ≥2.2µF ceramic capacitor close to pin to suppress line transients. |
| OUT1 | Regulator 1 output terminal | Delivers up to 200mA; requires ≥2.2µF output capacitor (or ≥1µF if load <150mA); primary power rail for core logic. |
| GND | Ground reference and thermal path | Serves as electrical return and heat sink; must connect to large PCB ground plane to maintain junction temperature <+150°C. |
| SHDN | Logic-controlled shutdown input | Active-high; drives low to reduce total supply current to <1µA; internally pulled up, so open-circuit = normal operation. |
| BP | Reference bypass terminal | Connects to 0.01µF ceramic capacitor to ground; forms RC filter that reduces reference noise, enabling 40µVRMS output noise. |
Key Features
| Feature | Design Value |
|---|---|
| Low-noise BP architecture | Enables 40µVRMS output noise - essential for powering precision analog front-ends or high-resolution ADCs without external filtering. |
| P-channel MOSFET pass transistors | Eliminates base-drive current loss; maintains 130µA quiescent current across full load and dropout conditions. |
| Independent current limiting | Guarantees min 210mA (OUT1) and 165mA (OUT2) current limit - protects downstream circuits during overloads without latch-up. |
| Thermal shutdown with hysteresis | Shuts down at +160°C and re-enables at +150°C - prevents thermal runaway while allowing safe recovery after transient overload. |
| UCSP and QFN packaging options | 1.16mm × 1.57mm UCSP footprint saves >70% board area vs. comparable SOT-23 packages - critical for camera modules and wearables. |
Applications
| Cellular Baseband Power | Digital Camera Core Rail |
|---|---|
|
Use Scenario: Powers baseband processor and RF transceiver in GSM/UMTS handsets where space and EMI are constrained. IC Role / Device Role / Timing Role: Dual-rail LDO supplying VCORE (1.8V) and VI/O (2.85V) simultaneously from a single Li-ion cell. Use Value: 40µVRMS noise on OUT1 prevents clock jitter in RF synthesizers; 100mV dropout extends usable battery life by ~12 minutes at end-of-discharge. |
Use Scenario: Supplies image sensor and ISP in compact digital cameras with strict height limits (<1.0mm). IC Role / Device Role / Timing Role: Primary voltage regulator delivering 2.85V/200mA (sensor analog) and 1.8V/150mA (digital logic) from 3.6V battery. Use Value: UCSP package fits within 1.57mm width constraint; low quiescent current enables >2-week standby with motion-triggered wake-up. |
| Hand-Held Instrument Analog Rail | PCMCIA Card Dual-Voltage Supply |
|
Use Scenario: Powers precision ADC and op-amp signal chain in portable multimeters and data loggers. IC Role / Device Role / Timing Role: Low-noise LDO generating clean 3.0V reference rail (OUT1) and 2.5V logic rail (OUT2) from 4.2V battery. Use Value: BP-filtered 40µVRMS noise ensures ≤0.5 LSB error in 16-bit ADC conversions; thermal shutdown prevents drift during extended measurements. |
Use Scenario: Provides VCC (3.3V) and VPP (5.0V) equivalents for legacy PCMCIA Type II cards in industrial laptops. IC Role / Device Role / Timing Role: Dual-output regulator delivering 3.3V/200mA and 2.5V/150mA - configured via factory-set internal dividers, no external resistors needed. Use Value: Eliminates need for discrete regulators and feedback networks; 6-bump UCSP allows placement directly beneath card edge connector. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-LDO applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX8531ETTA8-T | Same electrical specs, but in 3mm × 3mm thin QFN-EP package (6-pin, exposed pad); higher thermal dissipation (1951mW vs. 308mW UCSP). | Better suited for higher-power loads (>120mA continuous per rail) or environments with limited airflow where UCSP thermal margin is insufficient. | Select when thermal performance outweighs board area constraints - especially in notebook peripherals or wireless LAN cards. |
| TCS2003EUB+ | Single 200mA LDO (no dual output); 120mV dropout at 100mA; 65µVRMS noise; SOT-23-5 package; no BP pin or low-noise optimization. | Only replaces one rail of MAX8531EBTA8-T; requires separate regulator for second rail; lacks integrated noise-reduction architecture. | Use only when redesigning for single-rail systems or when cost-per-regulator is prioritized over board-area savings and noise performance. |
Compared with MAX8531ETTA8-T, the MAX8531EBTA8-T trades thermal headroom for extreme miniaturization - critical in camera modules where height and width are fixed. Against TCS2003EUB+, it delivers true dual-rail integration and 38% lower output noise, eliminating cross-talk risk between sensitive analog and digital domains.
Availability
MAX8531EBTA8-T is available at Aetrix Electronics and suitable for digital cameras, handheld instruments, cellular baseband subsystems, and PCMCIA cards requiring stable component supply with long-term lifecycle support.
Supply support for MAX8531EBTA8-T 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
Maxim Integrated (now part of Analog Devices) is a U.S.-based semiconductor company specializing in power management, analog, and mixed-signal ICs for portable, industrial, and communications applications.
The MAX8530/MAX8531 product line was engineered for ultra-compact, low-noise dual-rail regulation in battery-powered consumer electronics - emphasizing sub-1mm height, <150µA quiescent current, and factory-programmed output voltages to eliminate external components.
FAQ
What is the output voltage configuration of the MAX8531EBTA8-T?
The MAX8531EBTA8-T has factory-set output voltages: OUT1 = 2.85V and OUT2 = 2.85V, as indicated by top-mark "ACG" per Maxim's Output Voltage Selector Guide. These values are trimmed internally and require no external resistors. The MAX8531EBTA8-T does not support adjustable outputs - all variants use fixed-voltage configurations between 1.5V and 3.3V in 50mV steps.
Does the MAX8531EBTA8-T include a reset function like the MAX8530?
No, the MAX8531EBTA8-T does not include a reset output. It is the low-noise variant of the family and replaces the RESET pin (present on MAX8530) with the BP (bypass) pin for noise reduction. The MAX8531EBTA8-T pinout has BP on position A3 (UCSP), whereas MAX8530 uses that location for RESET. This functional distinction is explicit in Maxim's datasheet Pin Description table and Functional Diagram.
What capacitor is required on the BP pin of the MAX8531EBTA8-T to achieve 40µVRMS noise?
A 0.01µF (10nF) X7R or X5R ceramic capacitor must be placed between the BP pin and GND to achieve the specified 40µVRMS output noise (10Hz–100kHz). This capacitor forms a low-pass filter with an internal resistor, suppressing reference noise. Using Z5U or Y5V dielectrics is discouraged due to capacitance drift with temperature; X7R ensures stable performance across –40°C to +85°C.
Can the MAX8531EBTA8-T operate with a 2.5V input when regulating 2.85V outputs?
No - the MAX8531EBTA8-T cannot regulate 2.85V outputs from a 2.5V input. Its minimum input voltage must exceed the output voltage by at least the dropout voltage. With 2.85V outputs, the 100mV typical dropout requires VIN ≥ 2.95V. At 2.5V input, both outputs will drop out and fail to regulate. The 2.5V–6.5V input range applies only when VOUT ≤ VIN – VDROP; for 2.85V outputs, practical minimum VIN is ~2.95V.
Is the UCSP package of the MAX8531EBTA8-T lead-free?
No - the MAX8531EBTA8-T uses a standard (non-lead-free) UCSP package, as confirmed by Maxim's ordering information: "RoHS/Lead-Free? No" for part numbers ending in -T without the '+' suffix. Lead-free variants are explicitly marked with '+', e.g., MAX8531EBTA8+T. The '-T' suffix denotes tape-and-reel packaging only; RoHS compliance requires the '+' designation per Maxim's part-naming conventions.
MAX8531EBTA8-T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- 6-WFBGA, CSPBGA
- Packaging:
- Bulk
- Product Status:
- Active
- Output Configuration:
- Positive
- Output Type:
- Fixed
- Number of Regulators:
- 2
- Voltage - Input (Max):
- 6.5V
- Voltage - Output (Min/Fixed):
- -
- Voltage - Output (Max):
- -
- Voltage Dropout (Max):
- 0.2V @ 100mA
- Current - Output:
- 200mA, 150mA
- Current - Quiescent (Iq):
- 220 µA
- Current - Supply (Max):
- -
- PSRR:
- 62dB (100Hz)
- Control Features:
- Enable, Reset
- Protection Features:
- Over Current, Over Temperature, Short Circuit
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 6-UCSP (1.57x1.05)
MAX8531EBTA8-T FAQ
1.How can I place an order for MAX8531EBTA8-T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX8531EBTA8-T 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 MAX8531EBTA8-T reliable?
The price and inventory of MAX8531EBTA8-T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX8531EBTA8-T is usually 5 days.
3.What payment methods are accepted for MAX8531EBTA8-T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX8531EBTA8-T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX8531EBTA8-T?
MAX8531EBTA8-T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX8531EBTA8-T 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 MAX8531EBTA8-T?
For technical support, including MAX8531EBTA8-T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX8531EBTA8-T requirements.
6.How does Aetrix verify that MAX8531EBTA8-T is sourced from the original manufacturer or authorized distributors?
All MAX8531EBTA8-T 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 MAX8531EBTA8-T meets industry standards.
7.What is the process for return or replacement of MAX8531EBTA8-T?
All MAX8531EBTA8-T units undergo pre-shipment inspection (PSI). If there is an issue with MAX8531EBTA8-T, 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 MAX8531EBTA8-T part is unused and in its original packaging.
Return procedure for MAX8531EBTA8-T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MAX8531EBTA8-T 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…
