My Inquiry
My Account
Analog Devices Inc./Maxim Integrated MAX8878EZK30+T
- Part No.:
- MAX8878EZK30+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- SOT-23-5 Thin, TSOT-23-5
- Datasheet:
-
MAX8878EZK30+T.pdf
- Description:
- IC REG LINEAR 3V 150MA TSOT23-5
- Quantity:
- Payment:
- Shipping:
Inventory:3,884
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
MAX8878EZK30+T from Maxim Integrated is a low-noise, low-dropout linear regulator with fixed 3.0V output, delivering up to 150mA from a 2.5V–6.5V input. It features 30µVRMS output noise, 165mV dropout at 150mA, and 100µA operating supply current - designed for battery-powered portable electronics requiring stable, clean voltage rails.
For engineers reviewing the MAX8878EZK30+T datasheet, MAX8878EZK30+T pinout, MAX8878EZK30+T application, or MAX8878EZK30+T equivalent, key selection criteria include its thin SOT23-5 package, auto-discharge shutdown function, ±1.4% output accuracy over temperature, and compatibility with industry-standard '2982 footprint.
Technical Context
The MAX8878EZK30+T uses an internal P-channel MOSFET pass transistor (1.1Ω typical RDS(ON)) to achieve low dropout and load-independent quiescent current. Its error amplifier compares a 1.25V bandgap reference against feedback from an internal resistor divider tied to the OUT pin.
It integrates reverse-battery protection (limits reverse current to 1mA), thermal shutdown at +155°C with 15°C hysteresis, and a dedicated BP pin for noise filtering via a 0.01µF capacitor. The MAX8878 variant uniquely includes active output discharge during shutdown via a 300Ω internal resistance.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 3.0V ±1.4% over -40°C to +85°C - ensures stable core logic or analog supply without external resistors. |
| Max Output Current | 150mA continuous - sufficient for baseband processors, RF front-ends, or sensor signal chains in handheld devices. |
| Dropout Voltage | 165mV at 150mA - enables operation down to 3.165V input, extending usable battery life in single-cell Li-ion or alkaline systems. |
| Output Noise | 30µVRMS (10Hz–100kHz) with 0.01µF BP cap - meets low-noise requirements for ADC references or RF synthesizer supplies. |
| Quiescent Current | 100µA at full load and in dropout - maintains efficiency across load range, critical for always-on subsystems. |
| Shutdown Current | 10nA logic-controlled shutdown - reduces system standby power; MAX8878 adds active output discharge to ground. |
| Input Voltage Range | 2.5V to 6.5V - supports single-cell Li-ion (2.7–4.2V), dual-cell alkaline (3–6V), and USB-powered applications. |
Pinout & Package
MAX8878EZK30+T is housed in a thin 5-pin SOT23 package (JEDEC MO-178AA), optimized for space-constrained portable designs. The GND pin serves as both electrical return and thermal path - requires soldering to a large PCB copper area for thermal management.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 IN | Regulator input | Accepts 2.5V–6.5V; bypass with ≥1µF ceramic capacitor to GND for stability and line-transient immunity. |
| 2 GND | Ground / thermal pad | Reference node and primary heat dissipation path; must connect to large PCB copper pour for thermal performance. |
| 3 SHDN | Active-low shutdown control | Pulls output to ground when asserted (MAX8878 only); 10nA leakage enables ultra-low-power sleep states. |
| 4 BP | Bypass for reference noise | Connects to 0.01µF ceramic cap to reduce output noise; forms 80Hz low-pass filter with internal 200kΩ resistor. |
| 5 OUT | Regulated output | Delivers 3.0V at up to 150mA; requires ≥1µF (ESR < 0.2Ω) ceramic cap for VOUT ≥ 2.5V stability. |
Key Features
| Feature | Design Value |
|---|---|
| Auto-discharge on shutdown | 300Ω internal discharge path actively pulls OUT to GND during SHDN assertion - prevents floating outputs and unintended wake-up in battery-critical systems. |
| P-channel MOSFET pass element | Eliminates base-drive current loss; enables constant 100µA IQ across load and dropout - extends battery runtime vs. PNP-based regulators. |
| Reverse battery protection | Clamps reverse current to ≤1mA if VIN or SHDN falls below GND - protects IC and downstream circuitry without external diodes. |
| Thermal shutdown with hysteresis | Shuts down at +155°C and re-enables after cooling by 15°C - provides safe, self-recovering fault handling under sustained overload. |
| '2982 pin-compatible footprint | Enables drop-in replacement for legacy regulators in existing layouts - reduces redesign effort and qualification time for upgrades. |
Applications
| Cellular Handsets | PCMCIA Cards |
|---|---|
|
Use Scenario: Powering baseband processor I/O and memory interfaces in GSM/CDMA handsets with single-cell Li-ion battery. IC Role / Device Role / Timing Role: Primary 3.0V LDO supplying noise-sensitive digital logic and interface circuits. Use Value: 30µVRMS noise and 165mV dropout preserve signal integrity and extend talk-time by enabling operation until battery reaches 3.165V. |
Use Scenario: Providing regulated 3.0V supply to PCMCIA card controllers and SRAM in laptop expansion slots. IC Role / Device Role / Timing Role: Local point-of-load regulator isolating card circuitry from noisy host bus power. Use Value: Reverse battery protection prevents damage during hot-swap insertion; 10nA shutdown minimizes standby drain during card idle. |
| Hand-Held Instruments | Electronic Planners |
|
Use Scenario: Supplying precision analog front-end (AFE) and microcontroller in portable multimeters or data loggers. IC Role / Device Role / Timing Role: Low-noise 3.0V rail for ADC reference and sensor signal conditioning. Use Value: BP pin filtering reduces measurement noise floor; ±1.4% output accuracy ensures consistent calibration across temperature. |
Use Scenario: Powering real-time clock (RTC), display driver, and flash memory in battery-backed PDAs and organizers. IC Role / Device Role / Timing Role: Always-on regulator maintaining RTC and memory retention during main system sleep. Use Value: 100µA IQ and 10nA shutdown enable multi-month backup from coin cell; auto-discharge prevents RTC corruption on power cycle. |
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 |
|---|---|---|---|
| MAX8877EZK30+T | No auto-discharge function; otherwise identical pinout, specs, and package. | Suitable where output discharge is unnecessary and lowest BOM cost is prioritized. | Select MAX8877EZK30+T only if active shutdown discharge is not required - avoids unused functionality. |
| MCP1700T-3002E/TT | 250mA rated, 6µA IQ, no BP pin or auto-discharge; SOT23-3 package (no SHDN/BP pins). | Requires external enable logic and lacks noise optimization - better for ultra-low-IQ, non-critical noise apps. | Choose MCP1700T-3002E/TT only for cost-sensitive, low-current designs where noise and shutdown behavior are secondary. |
Compared with MAX8878EZK30+T, the MAX8877EZK30+T omits auto-discharge but retains identical regulation performance and footprint, while the MCP1700T-3002E/TT trades noise performance and shutdown control for lower quiescent current and smaller package - making it suitable only for less demanding applications.
Availability
MAX8878EZK30+T is available at Aetrix Electronics and suitable for cellular handsets, PCMCIA cards, hand-held instruments, and electronic planners requiring stable component supply, long-term lifecycle support, and guaranteed traceable sourcing.
Supply support for MAX8878EZK30+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 semiconductor company specializing in high-performance analog, mixed-signal, and power-management ICs for industrial, communications, and consumer applications.
The MAX8877/MAX8878 product line was engineered for battery-powered portable electronics - emphasizing ultra-low noise, minimal dropout, and robust protection features in compact SOT23 packages.
FAQ
What is the output voltage tolerance of the MAX8878EZK30+T over temperature?
The MAX8878EZK30+T guarantees ±1.4% output voltage accuracy across the full -40°C to +85°C operating range. At +25°C, typical deviation is tighter, and the device maintains this specification under load currents from 0.1mA to 120mA - critical for applications requiring stable reference or logic supply voltages without recalibration.
Does the MAX8878EZK30+T require an external bypass capacitor on the BP pin?
Yes - the MAX8878EZK30+T requires a 0.01µF ceramic capacitor between BP and GND to achieve its specified 30µVRMS output noise. Omitting this capacitor increases output noise significantly; using >0.1µF raises startup time without improving noise performance, per the datasheet's noise vs. BP capacitance curves.
How does the auto-discharge feature work in the MAX8878EZK30+T?
When SHDN is pulled low, the MAX8878EZK30+T activates an internal 300Ω discharge path from OUT to GND, actively pulling the output voltage to ground within microseconds. This prevents residual charge from causing unintended behavior in downstream circuitry - a capability absent in the MAX8877 variant.
What is the maximum power dissipation of the MAX8878EZK30+T in the thin SOT23-5 package?
In the thin SOT23-5 package, the MAX8878EZK30+T has a thermal resistance θJB of 110°C/W and a continuous power dissipation limit of 727mW at +70°C ambient. Derating is 9.1mW/°C above +70°C - meaning at +85°C ambient, max dissipation drops to ~590mW, corresponding to ~130mA at 3.165V dropout.
Can the MAX8878EZK30+T be used with input voltages below 2.5V?
No - the absolute minimum input voltage for the MAX8878EZK30+T is 2.5V, as specified in Absolute Maximum Ratings and Electrical Characteristics. Operation below this threshold risks improper regulation, increased dropout, or failure to maintain 3.0V output; it is not characterized or guaranteed for sub-2.5V operation.
MAX8878EZK30+T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- SOT-23-5 Thin, TSOT-23-5
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Output Configuration:
- Positive
- Output Type:
- Fixed
- Number of Regulators:
- 1
- Voltage - Input (Max):
- 6.5V
- Voltage - Output (Min/Fixed):
- 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:
- -
- 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
MAX8878EZK30+T FAQ
1.How can I place an order for MAX8878EZK30+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX8878EZK30+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 MAX8878EZK30+T reliable?
The price and inventory of MAX8878EZK30+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX8878EZK30+T is usually 5 days.
3.What payment methods are accepted for MAX8878EZK30+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX8878EZK30+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX8878EZK30+T?
MAX8878EZK30+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX8878EZK30+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 MAX8878EZK30+T?
For technical support, including MAX8878EZK30+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX8878EZK30+T requirements.
6.How does Aetrix verify that MAX8878EZK30+T is sourced from the original manufacturer or authorized distributors?
All MAX8878EZK30+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 MAX8878EZK30+T meets industry standards.
7.What is the process for return or replacement of MAX8878EZK30+T?
All MAX8878EZK30+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX8878EZK30+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 MAX8878EZK30+T part is unused and in its original packaging.
Return procedure for MAX8878EZK30+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MAX8878EZK30+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
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…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
LDO regulator guide covering low dropout voltage, power dissipation, thermal design, PSRR, output noise, capacitor stability, adjustable LDO circuits, LDO vs buck converter and datasheet selection chec…
Conditional Access Module guide covering CAM meaning, CI/CI+ interface, smart card authorization, DVB security workflow, TV and set-top box compatibility, internal electronics, ESD protection, connecto…
Guide to electronic component obsolescence covering EOL risk, PCN/PDN notices, last-time buy planning, replacement options, form-fit-function validation, counterfeit risk and BOM lifecycle management.
18650 battery guide covering lithium-ion cell basics, 3.6V/3.7V voltage, 4.2V charging, mAh and Wh capacity, protected cells, chargers, BMS, series-parallel packs, holders, welding and sourcing checks.…
