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Analog Devices Inc./Maxim Integrated MAX8877EZK30-T
- Part No.:
- MAX8877EZK30-T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- SOT-23-5 Thin, TSOT-23-5
- Datasheet:
-
MAX8877EZK30-T.pdf
- Description:
- IC REG LINEAR LDO
- Quantity:
- Payment:
- Shipping:
Inventory:15,000
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Product details
Overview
MAX8877EZK30-T from Maxim Integrated is a low-noise, low-dropout linear regulator with 3.0V preset output, 150mA max output current, 165mV dropout at full load, 30µVRMS output noise, and 100µA operating supply current. It uses an internal P-channel MOSFET pass device and operates from 2.5V to 6.5V input, serving as a stable power source for battery-powered portable electronics requiring tight voltage regulation and minimal quiescent consumption.
For engineers reviewing the MAX8877EZK30-T datasheet, MAX8877EZK30-T pinout, MAX8877EZK30-T application, or MAX8877EZK30-T equivalent, key selection criteria include dropout performance at 150mA, output noise in 10Hz–100kHz band, shutdown current (10nA), thermal protection threshold (+155°C), and compatibility with 0.01µF BP capacitor for noise filtering.
Technical Context
The MAX8877EZK30-T implements a fixed-output LDO architecture with a 1.25V internal bandgap reference, error amplifier, and P-channel MOSFET pass transistor (typical RDS(ON) = 1.1Ω). Its feedback network is fully internal-no external resistors required-and output voltage is factory-trimmed to 3.0V ±1.4% over -40°C to +85°C.
It integrates reverse-battery protection (limits reverse current to 1mA), thermal shutdown with 15°C hysteresis, short-circuit current limiting (160–390mA), and logic-controlled active-low shutdown. Unlike the MAX8878 variant, it lacks auto-discharge functionality-output remains floating during shutdown.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | 3.0V ±1.4% (factory-preset; no external feedback required) |
| Max Output Current | 150mA continuous; supports peak loads without foldback |
| Dropout Voltage | 165mV at 150mA (enables operation down to VIN = 3.165V) |
| Output Noise | 30µVRMS (10Hz–100kHz, with 0.01µF BP cap and 10µF COUT) |
| Quiescent Current | 100µA (constant across load and dropout; enables >1-year battery life in 10µA standby systems) |
| Shutdown Current | 10nA (logic-low SHDN reduces supply draw to nanoamp level) |
| Input Voltage Range | 2.5V to 6.5V (supports single-cell Li-ion, 2-cell alkaline, or regulated 3.3/5V rails) |
Pinout & Package
MAX8877EZK30-T is housed in a 5-pin thin SOT23 package (JEDEC MO-178AA), optimized for space-constrained portable designs. The GND pin serves dual roles: electrical reference and thermal path-requires connection to PCB ground plane for thermal management.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 IN | Regulator input supply | Accepts 2.5V–6.5V; requires ≥1µF ceramic bypass to GND for stability and line-transient immunity |
| 2 GND | Ground reference and thermal sink | Must be soldered to large copper area; critical for thermal dissipation and noise rejection |
| 3 SHDN | Active-low enable control | Pulled low to enter 10nA shutdown; tied high to IN for always-on operation |
| 4 BP | Bypass reference node | Connects to 0.01µF ceramic cap to reduce reference noise; determines output noise floor |
| 5 OUT | Regulated 3.0V output | Sources up to 150mA; requires ≥1µF (ESR < 0.2Ω) ceramic cap for VOUT ≥ 2.5V |
Key Features
| Feature | Design Value |
|---|---|
| P-channel MOSFET pass element | Eliminates base-drive current; maintains 100µA IQ even in dropout or heavy-load conditions |
| Low 30µVRMS output noise | Enables clean power for RF sections, ADCs, and precision analog circuitry without additional filtering |
| Reverse battery protection | Blocks >99% of reverse current (<1mA) when VIN or SHDN falls below GND-prevents damage in miswired battery compartments |
| Thermal shutdown with hysteresis | Shuts down at +155°C and re-enables only after cooling by 15°C-prevents thermal cycling and ensures safe fault recovery |
| 10nA shutdown mode | Reduces system standby power to negligible levels; compatible with long-life coin-cell or energy-harvesting applications |
Applications
| Cellular Handsets | PCMCIA Cards |
|---|---|
|
Use Scenario: Powering baseband processor core voltage and RF transceiver bias rails in GSM/CDMA handsets with single Li-ion cell. IC Role / Device Role / Timing Role: Primary 3.0V LDO delivering regulated power to noise-sensitive analog blocks and digital logic domains. Use Value: 165mV dropout extends usable battery range to ~3.16V; 30µVRMS noise avoids spurious mixing in receiver front-end. |
Use Scenario: Providing isolated 3.0V supply for PCMCIA card controller and interface logic in laptop expansion slots. IC Role / Device Role / Timing Role: Local point-of-load regulator decoupling host 3.3V rail and rejecting noise from shared bus switching. Use Value: Pin-compatible with '2982 footprint simplifies legacy design upgrades; 100µA IQ minimizes card standby drain. |
| Hand-Held Instruments | Electronic Planners |
|
Use Scenario: Supplying precision ADC reference and microcontroller I/O voltage in portable multimeters and data loggers. IC Role / Device Role / Timing Role: Low-noise, low-drift voltage source ensuring measurement accuracy and consistent display backlight control. Use Value: ±1.4% output accuracy over temperature eliminates need for post-calibration trimming; thermal protection prevents field failure during extended use. |
Use Scenario: Powering real-time clock (RTC), SRAM backup, and touch-screen controller in palm-sized organizers. IC Role / Device Role / Timing Role: Always-on regulator maintaining RTC and memory retention during main system sleep. Use Value: 10nA shutdown current enables multi-year battery life on CR2032; thin SOT23 footprint fits ultra-slim form factors. |
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 |
|---|---|---|---|
| MAX8877EUK30-T | Same electrical specs, but in regular (not thin) SOT23-5 package; θJB = 140°C/W vs. 110°C/W for thin version | Preferred where board height is unconstrained and thermal margin is adequate; lower cost in high-volume tape-and-reel | Select when PCB stack-up allows 1.1mm height and thermal derating permits higher ambient operation. |
| MCP1700T-3002E/MB | 3.0V fixed LDO; 250mA rating, 600mV dropout at 250mA, 33µVRMS noise, 1.6µA IQ; SOT23-3 (no BP or SHDN pins) | Lacks BP noise-reduction pin and active-low shutdown; simpler interface but higher dropout and no reverse-battery protection | Choose for cost-sensitive, non-battery-reverse-prone designs where 600mV dropout is acceptable and ultra-low IQ dominates. |
Compared with MAX8877EZK30-T, the MAX8877EUK30-T offers identical regulation performance in a taller package with reduced thermal efficiency, while the MCP1700T-3002E/MB trades noise performance, reverse protection, and shutdown control for lower quiescent current and simplified 3-pin layout.
Availability
MAX8877EZK30-T is available at Aetrix Electronics and suitable for cellular handsets, PCMCIA cards, hand-held instruments, and electronic planners requiring stable component supply, guaranteed -40°C to +85°C operation, and long-term production continuity.
Supply support for MAX8877EZK30-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 designed specifically for battery-powered portable equipment demanding ultra-low noise, low dropout, and nanoscale shutdown current-targeting cellular phones, handheld instruments, and compact computing modules.
FAQ
What is the output voltage tolerance of the MAX8877EZK30-T over temperature and load?
The MAX8877EZK30-T delivers 3.0V output with ±1.4% accuracy across -40°C to +85°C ambient temperature and 0.1mA to 120mA load current. This specification holds for both VOUT ≥ 2.5V and < 2.5V configurations per the datasheet's Electrical Characteristics table, ensuring predictable regulation in battery-voltage-declining environments without external trimming.
Does the MAX8877EZK30-T include thermal shutdown protection?
Yes, the MAX8877EZK30-T incorporates thermal-overload protection that disables the pass transistor when junction temperature exceeds +155°C. After shutdown, the device remains off until the die cools by 15°C (hysteresis), then resumes regulation-preventing destructive thermal cycling during sustained overload or poor heatsinking conditions.
Can the MAX8877EZK30-T be used with input voltages below 2.5V?
No-the MAX8877EZK30-T has a minimum specified input voltage of 2.5V per Absolute Maximum Ratings and Electrical Characteristics tables. Operation below 2.5V is not characterized or guaranteed; attempting to operate below this threshold may result in loss of regulation, increased dropout, or undefined behavior.
What capacitor values are required for stable operation of the MAX8877EZK30-T?
For stable operation, the MAX8877EZK30-T requires a minimum 1µF ceramic input capacitor (CIN) and a 1µF ceramic output capacitor (COUT) with ESR < 0.2Ω for VOUT ≥ 2.5V. A 0.01µF ceramic capacitor must be placed on the BP pin to achieve rated 30µVRMS noise performance. Larger COUT improves transient response but does not affect stability if ESR remains low.
How does the MAX8877EZK30-T differ from the MAX8878EZK30-T?
The MAX8877EZK30-T and MAX8878EZK30-T share identical regulation specs, pinout, and package-but the MAX8878 adds an auto-discharge function that actively pulls the OUT pin to GND during shutdown. The MAX8877EZK30-T leaves OUT floating in shutdown, making it suitable where output hold-up or isolation is required during disable.
MAX8877EZK30-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):
- 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
MAX8877EZK30-T FAQ
1.How can I place an order for MAX8877EZK30-T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX8877EZK30-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 MAX8877EZK30-T reliable?
The price and inventory of MAX8877EZK30-T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX8877EZK30-T is usually 5 days.
3.What payment methods are accepted for MAX8877EZK30-T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX8877EZK30-T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX8877EZK30-T?
MAX8877EZK30-T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX8877EZK30-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 MAX8877EZK30-T?
For technical support, including MAX8877EZK30-T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX8877EZK30-T requirements.
6.How does Aetrix verify that MAX8877EZK30-T is sourced from the original manufacturer or authorized distributors?
All MAX8877EZK30-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 MAX8877EZK30-T meets industry standards.
7.What is the process for return or replacement of MAX8877EZK30-T?
All MAX8877EZK30-T units undergo pre-shipment inspection (PSI). If there is an issue with MAX8877EZK30-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 MAX8877EZK30-T part is unused and in its original packaging.
Return procedure for MAX8877EZK30-T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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