My Inquiry
My Account
Analog Devices Inc./Maxim Integrated MAX8877EUK22-T
- Part No.:
- MAX8877EUK22-T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- SC-74A, SOT-753
- Datasheet:
-
MAX8877EUK22-T.pdf
- Description:
- IC REG LINEAR LOW NOISE LDO
- Quantity:
- Payment:
- Shipping:
Inventory:7,500
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
MAX8877EUK22-T from Maxim Integrated is a low-noise, low-dropout linear regulator with 2.2V preset output voltage, 150mA maximum output current, 165mV dropout at full load, 30µVRMS output noise, and 100µA operating supply current. It uses an internal P-channel MOSFET pass transistor and operates from 2.5V to 6.5V input, serving as a precision power source for battery-powered portable electronics.
For engineers reviewing the MAX8877EUK22-T datasheet, MAX8877EUK22-T pinout, MAX8877EUK22-T application, or MAX8877EUK22-T equivalent, key selection criteria include dropout performance at 150mA, ±1.4% output voltage accuracy over temperature, shutdown current of 10nA, reverse battery protection, and SOT23-5 regular package compatibility with industry-standard '2982 footprint.
Technical Context
The MAX8877EUK22-T implements a fixed-output LDO architecture using a P-channel MOSFET pass element with 1.1Ω typical RDS(ON), enabling 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 thermal shutdown (155°C trip, 15°C hysteresis), short-circuit current limiting (160–390mA), reverse battery protection (<1mA reverse current), and logic-controlled active-low SHDN with 10nA bias. The BP pin supports 0.01µF ceramic bypass for noise filtering via an internal 200kΩ resistor.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | 2.2V preset (±1.4% accuracy from -40°C to +85°C), factory-trimmed, no external resistors required |
| Max Output Current | 150mA continuous; supports peak loads without thermal shutdown under proper PCB layout |
| Dropout Voltage | 165mV at 150mA load - enables operation down to 2.365V input for 2.2V output in end-of-battery applications |
| Output Noise | 30µVRMS (10Hz–100kHz) with 0.01µF BP cap - suitable for RF, ADC, and low-noise analog circuitry |
| Quiescent Current | 100µA across full load range and dropout - ensures minimal battery drain in always-on portable systems |
| Shutdown Current | 10nA max at VSHDN = 0V - enables ultra-low-power sleep modes in handheld instruments |
| Input Voltage Range | 2.5V to 6.5V - compatible with single Li-ion, dual alkaline, or regulated 3.3V/5V rails |
Pinout & Package
MAX8877EUK22-T is housed in a 5-pin SOT23-5 regular package (JEDEC MO-178AA), with exposed pad not electrically connected. The GND pin serves dual function as electrical ground and thermal path; soldering to a large copper area improves power dissipation capability (θJB = 140°C/W).
| 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 connect to large PCB copper area to maintain TJ < +150°C at 150mA load |
| 3 SHDN | Active-low enable/shutdown control | Pulled low ≤0.4V to enter 10nA shutdown; pulled high ≥2.0V for normal operation; no auto-discharge (MAX8878 only) |
| 4 BP | Bypass capacitor connection for noise reduction | Connects to internal 200kΩ resistor; 0.01µF ceramic cap yields 30µVRMS noise; larger values increase startup time |
| 5 OUT | Regulated output voltage | Delivers up to 150mA; requires ≥1µF ceramic cap (ESR < 0.2Ω) for VOUT ≥ 2.5V; 3.3µF for lower outputs |
Key Features
| Feature | Design Value |
|---|---|
| P-channel MOSFET pass transistor | Eliminates base-drive current loss, enabling stable 100µA IQ across all load and dropout conditions |
| Reverse battery protection | Limits reverse current to <1mA when VIN or SHDN falls below GND - prevents damage in miswired battery compartments |
| Thermal shutdown with hysteresis | Trips at +155°C and re-enables only after cooling by 15°C - avoids oscillation during sustained overload |
| 100mV output voltage increments | 2.2V output (EUK22 suffix) is factory-set with ±1.4% tolerance - eliminates external feedback network and calibration effort |
| '2982 pin-compatible footprint | Direct replacement for legacy regulators in existing SOT23-5 layouts - no PCB redesign needed for upgrade |
Applications
| Cellular Handsets | PCMCIA Cards |
|---|---|
Use Scenario: Powering RF transceiver ICs and baseband processors in GSM/CDMA handsets with single-cell Li-ion battery. IC Role / Device Role / Timing Role: Primary 2.2V LDO supplying noise-sensitive RF front-end and PLL circuits. Use Value: 30µVRMS noise and 165mV dropout extend usable battery life by >12% compared to older '2982-compatible regulators. |
Use Scenario: Providing clean 2.2V supply to SRAM and interface logic on hot-pluggable PCMCIA memory cards. IC Role / Device Role / Timing Role: Local regulation for card-side logic, decoupled from noisy host bus voltage. Use Value: 10nA shutdown current enables zero-leakage power-off state; reverse battery protection prevents card damage during insertion errors. |
| Palmtop Computers | Electronic Planners |
Use Scenario: Supplying microcontroller core voltage and LCD driver in compact palmtop PDAs with tight thermal constraints. IC Role / Device Role / Timing Role: Main system LDO delivering 150mA at 2.2V with minimal self-heating on small PCBs. Use Value: 100µA load-independent IQ and GND-as-thermal-sink design allow operation without heatsinks in space-constrained enclosures. |
Use Scenario: Regulating power for real-time clock (RTC), memory backup, and touch-screen controller in battery-backed planners. IC Role / Device Role / Timing Role: Always-on LDO maintaining 2.2V rail during deep-sleep mode with sub-µA system leakage. Use Value: ±1.4% output accuracy over -40°C to +85°C ensures RTC timing stability; 10nA shutdown preserves coin-cell lifetime beyond 5 years. |
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 |
|---|---|---|---|
| MAX8878EUK22-T | Includes auto-discharge function on SHDN; otherwise identical specs and pinout | Required where rapid output discharge during shutdown is needed (e.g., multi-rail sequencing) | Select MAX8878EUK22-T only if active output discharge is mandatory; MAX8877EUK22-T is preferred for lowest BOM cost and simplest use case |
| MCP1700T-2202E/TT | 250mA rated, 6µA IQ, but higher 115µVRMS noise and no reverse battery protection | Suitable for non-battery-reversal environments with higher current demand and relaxed noise requirements | Choose MCP1700T-2202E/TT only when >150mA load or ultra-low IQ dominates over noise and protection needs |
Compared with MAX8878EUK22-T, the MAX8877EUK22-T omits auto-discharge but retains identical noise, accuracy, and protection - making it optimal for cost-sensitive, single-rail portable designs. Against MCP1700T-2202E/TT, MAX8877EUK22-T delivers 3.8× lower noise and integrated reverse-battery safety at the expense of 94µA higher quiescent current.
Availability
MAX8877EUK22-T is available at Aetrix Electronics and suitable for cellular handsets, PCMCIA cards, palmtop computers, and electronic planners requiring stable component supply, long-lifecycle support, and guaranteed -40°C to +85°C operation.
Supply support for MAX8877EUK22-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 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 electronics requiring ultra-low noise, low dropout, and robust protection features in minimal SOT23-5 footprint.
FAQ
What is the output voltage tolerance of the MAX8877EUK22-T over temperature?
The MAX8877EUK22-T maintains ±1.4% output voltage accuracy across the full operating temperature range of -40°C to +85°C, verified per Electrical Characteristics table. This tolerance applies to all load currents from 0.1mA to 120mA and ensures stable 2.2V rail integrity for precision analog and digital circuitry without external trimming.
Does the MAX8877EUK22-T support reverse battery protection?
Yes, the MAX8877EUK22-T includes integrated reverse battery protection that limits reverse current to less than 1mA when either the IN or SHDN pin falls below GND potential. This feature protects the device and downstream circuitry from damage due to incorrect battery installation in portable equipment.
What capacitor values are required for stable operation of the MAX8877EUK22-T?
For stable operation, the MAX8877EUK22-T requires a minimum 1µF ceramic input capacitor (X5R/X7R dielectric) and a 1µF output capacitor with ESR < 0.2Ω for VOUT ≥ 2.5V. Since the MAX8877EUK22-T outputs 2.2V, a 3.3µF output capacitor is recommended. A 0.01µF ceramic capacitor on the BP pin is mandatory for specified 30µVRMS noise performance.
How does the dropout voltage of the MAX8877EUK22-T behave at 150mA load?
The MAX8877EUK22-T exhibits a typical dropout voltage of 165mV at 150mA load and +25°C, defined as VIN – VOUT when VOUT drops 100mV below its nominal value. This enables reliable operation down to 2.365V input while sustaining 2.2V output - critical for maximizing runtime in single-cell Li-ion systems approaching end-of-discharge.
Is the MAX8877EUK22-T pin-compatible with the industry-standard '2982 regulator?
Yes, the MAX8877EUK22-T is fully pin-compatible with the industry-standard '2982 family in the SOT23-5 package. Pin assignments (IN, GND, SHDN, BP, OUT) match exactly, allowing drop-in replacement without PCB modification - provided thermal and capacitor layout guidelines are followed per the datasheet.
MAX8877EUK22-T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- SC-74A, SOT-753
- Packaging:
- Bulk
- Product Status:
- Active
- Output Configuration:
- Positive
- Output Type:
- Fixed
- Number of Regulators:
- 1
- Voltage - Input (Max):
- 6.5V
- Voltage - Output (Min/Fixed):
- 2.2V
- 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:
- SOT-23-5
MAX8877EUK22-T FAQ
1.How can I place an order for MAX8877EUK22-T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX8877EUK22-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 MAX8877EUK22-T reliable?
The price and inventory of MAX8877EUK22-T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX8877EUK22-T is usually 5 days.
3.What payment methods are accepted for MAX8877EUK22-T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX8877EUK22-T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX8877EUK22-T?
MAX8877EUK22-T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX8877EUK22-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 MAX8877EUK22-T?
For technical support, including MAX8877EUK22-T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX8877EUK22-T requirements.
6.How does Aetrix verify that MAX8877EUK22-T is sourced from the original manufacturer or authorized distributors?
All MAX8877EUK22-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 MAX8877EUK22-T meets industry standards.
7.What is the process for return or replacement of MAX8877EUK22-T?
All MAX8877EUK22-T units undergo pre-shipment inspection (PSI). If there is an issue with MAX8877EUK22-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 MAX8877EUK22-T part is unused and in its original packaging.
Return procedure for MAX8877EUK22-T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MAX8877EUK22-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
Comparator circuit design covering voltage thresholds, input limits, open-collector outputs, LM393 wiring, op-amp differences, hysteresis, timing, window detection and practical fault diagnosis.
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 …
