My Inquiry
My Account
Analog Devices Inc./Maxim Integrated MAX8867EZK33-T
- Part No.:
- MAX8867EZK33-T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- SOT-23-5 Thin, TSOT-23-5
- Datasheet:
-
MAX8867EZK33-T.pdf
- Description:
- IC REG LINEAR LOW NOISE LDO
- Quantity:
- Payment:
- Shipping:
Inventory:17,500
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
MAX8867EZK33-T from Maxim Integrated is a low-noise, low-dropout linear regulator with a factory-preset 3.3V output, 150mA output current capability, 30µVRMS output noise, and 165mV dropout at full load. It uses an internal P-channel MOSFET pass transistor and operates from 2.5V to 6.5V input, targeting power-sensitive portable electronics such as palmtop computers and PCMCIA cards.
For engineers reviewing the MAX8867EZK33-T datasheet, MAX8867EZK33-T pinout, MAX8867EZK33-T application, or MAX8867EZK33-T equivalent, key selection criteria include its thin SOT23-5 package, 10nA shutdown current, reverse battery protection, thermal shutdown behavior, and BP-pin–based noise filtering architecture.
Technical Context
The MAX8867EZK33-T implements a bandgap-referenced error amplifier driving a P-channel MOSFET pass element with 1.1Ω typical RDS(ON). Its feedback network is fully internal-no external resistors required-and output voltage is fixed at 3.3V ±1.4% over temperature and load.
Noise reduction relies on a dedicated BP pin connected to a 0.01µF ceramic capacitor, forming an 80Hz RC filter that suppresses reference noise; PSRR is 63dB at low frequencies but rolls off above 10kHz. Thermal protection activates at +155°C with +15°C hysteresis, and reverse battery protection limits reverse current to ≤1mA when VIN or SHDN falls below GND.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | 3.3V ±1.4% (factory preset; no external feedback required) |
| Max Output Current | 150mA continuous; current limit set to 160–500mA range |
| Dropout Voltage | 165mV at 150mA (enables operation down to ~3.465V input for 3.3V output) |
| Output Noise | 30µVRMS (10Hz–100kHz, with 0.01µF BP cap and 10µF COUT) |
| Quiescent Current | 100µA (load-independent; remains constant even in dropout) |
| Shutdown Current | 10nA (logic-controlled; enables ultra-low-power system sleep states) |
| Input Voltage Range | 2.5V to 6.5V (supports single-cell Li-ion, dual-cell alkaline, or regulated 5V rails) |
Pinout & Package
SOT23-5 thin package (JEDEC MO-178AA), 2.9mm × 1.6mm × 0.95mm body height, exposed pad not present; GND pin serves as primary thermal path and must be soldered to large PCB copper area.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - SHDN | Active-low enable control | Pull low to enter 10nA shutdown; on MAX8868 only, triggers active output discharge to GND |
| 2 - GND | Power ground & thermal sink | Electrical return path and primary heat conduction route; requires large PCB copper pour |
| 3 - IN | Regulator input supply | Accepts 2.5V–6.5V; bypass with ≥1µF ceramic capacitor close to pin |
| 4 - OUT | Regulated output | Delivers up to 150mA at 3.3V; bypass with 1–10µF low-ESR capacitor |
| 5 - BP | Noise-reduction bypass node | Connects to 0.01µF ceramic cap to reduce reference noise; defines 80Hz lowpass corner |
Key Features
| Feature | Design Value |
|---|---|
| Reverse battery protection | Limits reverse current to ≤1mA when VIN or SHDN < GND-prevents damage during battery insertion errors |
| Thermal overload protection | Shuts down at +155°C junction temp; auto-recovers after 20°C cooldown-enables safe fault handling without latch-up |
| BP-pin noise filtering | Internal 200kΩ resistor + external 0.01µF cap creates 80Hz filter-reduces output noise to 30µVRMS without external op-amps |
| Load-independent quiescent current | 100µA across full 0–150mA load range and all dropout conditions-extends battery life in variable-load systems |
| Short-circuit robustness | Output can be shorted to GND indefinitely without damage-eliminates need for external foldback or fusing |
Applications
| Palmtop Computers | PCMCIA Cards |
|---|---|
Use Scenario: Powering core logic and SRAM in space-constrained handheld computing devices with single-cell Li-ion batteries. IC Role / Device Role / Timing Role: Primary 3.3V LDO supplying microcontroller I/O and memory interface rails. Use Value: 165mV dropout extends usable battery life by enabling regulation until cell voltage drops to ~3.465V; 30µVRMS noise prevents digital bit errors in high-speed SRAM access. |
Use Scenario: Providing clean, stable 3.3V to PCMCIA card controllers and peripheral interfaces in laptops and industrial hosts. IC Role / Device Role / Timing Role: Local point-of-load regulator decoupling host 5V rail for card-specific logic and bus signaling. Use Value: Reverse battery protection safeguards against accidental insertion into reversed-slot hosts; 10nA shutdown supports hot-swap compliance and zero-power card ejection states. |
| Cordless Telephones | Hand-Held Instruments |
Use Scenario: Supplying RF front-end ICs and baseband processors in DECT-class cordless handsets operating from NiMH or Li-ion packs. IC Role / Device Role / Timing Role: Low-noise bias source for VCOs, mixers, and ADC reference circuits. Use Value: 30µVRMS output noise minimizes phase noise degradation in RF synthesizers; thin SOT23-5 footprint saves board area in compact handset PCBs. |
Use Scenario: Powering precision analog front-ends (e.g., 16-bit ADCs, instrumentation amplifiers) in portable multimeters and data loggers. IC Role / Device Role / Timing Role: Ultra-low-noise analog supply rail isolating sensitive measurement circuitry from noisy digital domains. Use Value: BP-capacitor–enabled noise filtering ensures sub-LSB noise floor for 16-bit conversions; thermal shutdown prevents calibration drift during extended field use. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar low-noise LDO regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX8863EUK33-T | Same pinout and 3.3V output, but lacks BP pin and delivers higher 50µVRMS noise; no reverse battery protection | Suitable for cost-sensitive, non-battery-reversal applications where noise <50µVRMS is acceptable | Select only if BP-based noise filtering and reverse polarity hardening are unnecessary |
| MCP1700T-3302E/TT | 3.3V fixed output, 250mA rating, 17µVRMS noise, but requires minimum 1.6V input headroom (dropout ~600mV @250mA) | Better noise performance but significantly higher dropout-unsuitable for deep-discharge battery operation | Prefer when ultra-low noise dominates over input voltage headroom constraints |
Compared with MAX8867EZK33-T, MAX8863EUK33-T sacrifices noise filtering and reverse protection for lower cost, while MCP1700T-3302E/TT trades higher dropout for lower noise and higher current-making MAX8867EZK33-T optimal for battery-powered systems needing both low noise and minimal input voltage overhead.
Availability
MAX8867EZK33-T is available at Aetrix Electronics and suitable for palmtop computers, PCMCIA cards, and cordless telephones requiring stable component supply, long-lifecycle support, and guaranteed traceable sourcing.
Supply support for MAX8867EZK33-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) designs high-performance analog and mixed-signal ICs for power management, sensing, and communication applications.
The MAX8867/MAX8868 family was engineered specifically for battery-powered portable electronics demanding ultra-low noise, low quiescent current, and robust fault protection in minimal SOT23 footprints.
FAQ
What is the maximum input voltage rating for the MAX8867EZK33-T?
The MAX8867EZK33-T has an absolute maximum input voltage of +7V referenced to GND. However, its specified operating input range is 2.5V to 6.5V. Exceeding 6.5V may cause functional instability or accelerated aging, even if within absolute max ratings. Always maintain VIN ≤ 6.5V in normal operation to ensure guaranteed performance and reliability of the MAX8867EZK33-T.
Does the MAX8867EZK33-T provide reverse battery protection?
Yes, the MAX8867EZK33-T includes integrated reverse battery protection that limits reverse current to ≤1mA when either the IN or SHDN pin falls below GND potential. This feature protects internal circuitry during incorrect battery installation and is confirmed in the Absolute Maximum Ratings and Detailed Description sections of the official datasheet for the MAX8867EZK33-T.
What capacitor values are recommended for stable operation of the MAX8867EZK33-T?
For stable operation, the MAX8867EZK33-T requires a minimum 1µF ceramic input capacitor (CIN) and a 1–10µF ceramic output capacitor (COUT) with ESR < 0.2Ω. A 0.01µF ceramic capacitor must be placed directly on the BP pin. X7R or X5R dielectrics are preferred; Z5U/Y5V types may require ≥2.2µF for stability below –10°C. These values are validated across –40°C to +85°C for the MAX8867EZK33-T.
Is the MAX8867EZK33-T pin-compatible with other regulators in the same family?
Yes, the MAX8867EZK33-T is pin-compatible with the MAX8863/MAX8864 series in SOT23-5 packages, differing only in the BP pin function. It shares identical IN, GND, OUT, and SHDN pin assignments and mechanical footprint with MAX8863EUK33-T and MAX8864EUK33-T, enabling drop-in replacement where BP functionality is unused or externally managed.
What is the thermal shutdown behavior of the MAX8867EZK33-T?
The MAX8867EZK33-T activates thermal shutdown at +155°C junction temperature and exhibits +15°C hysteresis, re-enabling regulation once the junction cools to +140°C. During sustained overload, this results in pulsed output operation rather than latch-up, allowing automatic recovery without external reset. This behavior is characterized across –40°C to +85°C ambient and applies specifically to the MAX8867EZK33-T device variant.
MAX8867EZK33-T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- SOT-23-5 Thin, TSOT-23-5
- Packaging:
- Bulk
- Product Status:
- Active
- Output Configuration:
- Positive
- Output Type:
- Fixed
- Number of Regulators:
- 1
- Voltage - Input (Max):
- 6.5V
- Voltage - Output (Min/Fixed):
- 3.3V
- Voltage - Output (Max):
- -
- Voltage Dropout (Max):
- 0.165V @ 150mA (Typ)
- Current - Output:
- 150mA
- Current - Quiescent (Iq):
- 180 µA
- Current - Supply (Max):
- 100 µA
- PSRR:
- 63dB (10kHz)
- Control Features:
- Enable
- Protection Features:
- Over Current, Over Temperature, Reverse Polarity, Short Circuit
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- TSOT-23-5
MAX8867EZK33-T FAQ
1.How can I place an order for MAX8867EZK33-T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX8867EZK33-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 MAX8867EZK33-T reliable?
The price and inventory of MAX8867EZK33-T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX8867EZK33-T is usually 5 days.
3.What payment methods are accepted for MAX8867EZK33-T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX8867EZK33-T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX8867EZK33-T?
MAX8867EZK33-T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX8867EZK33-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 MAX8867EZK33-T?
For technical support, including MAX8867EZK33-T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX8867EZK33-T requirements.
6.How does Aetrix verify that MAX8867EZK33-T is sourced from the original manufacturer or authorized distributors?
All MAX8867EZK33-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 MAX8867EZK33-T meets industry standards.
7.What is the process for return or replacement of MAX8867EZK33-T?
All MAX8867EZK33-T units undergo pre-shipment inspection (PSI). If there is an issue with MAX8867EZK33-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 MAX8867EZK33-T part is unused and in its original packaging.
Return procedure for MAX8867EZK33-T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MAX8867EZK33-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
Schmitt triggers use separate rising and falling thresholds to stabilize slow or noisy signals. This guide covers hysteresis, 74HC14 and 74HCT14 selection, comparator calculations, RC oscillators and p…
Counterfeit components can hide behind convincing markings and passing basic function tests. This engineering reference covers source traceability, external inspection, X-ray, XRF, electrical testing, …
A practical engineering and sourcing framework covering lifecycle verification, lifetime-buy calculations, replacement qualification, supplier checks and counterfeit-risk controls.
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…
