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Analog Devices Inc./Maxim Integrated MAX8877EZK26+T
- Part No.:
- MAX8877EZK26+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- SOT-23-5 Thin, TSOT-23-5
- Datasheet:
-
MAX8877EZK26+T.pdf
- Description:
- IC REG LIN 2.6V 150MA TSOT23-5
- Quantity:
- Payment:
- Shipping:
Inventory:2,955
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Product details
Overview
MAX8877EZK26+T from Maxim Integrated is a low-noise, low-dropout linear regulator with 2.6V 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 stable power source for battery-powered portable electronics.
For engineers reviewing the MAX8877EZK26+T datasheet, MAX8877EZK26+T pinout, MAX8877EZK26+T application, or MAX8877EZK26+T equivalent, key selection criteria include dropout performance at 150mA, output voltage accuracy (±1.4%), shutdown current (10nA), thermal protection (155°C trip), and SOT23-5 thin-package thermal resistance (110°C/W).
Technical Context
The MAX8877EZK26+T implements a P-channel MOSFET pass element with 1.1Ω typical RDS(ON), enabling low dropout and eliminating base-drive current loss. 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 limiting reverse current to 1mA, thermal shutdown with 15°C hysteresis, and short-circuit current limiting (160–390mA). The BP pin accepts a 0.01µF ceramic capacitor to form an 80Hz low-pass filter that reduces reference noise, directly contributing to the 30µVRMS output noise specification.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | 2.6V ±1.4% (factory-preset; stable over -40°C to +85°C and 0.1–120mA load) |
| Max Output Current | 150mA (continuous; current limit activates at ≥160mA) |
| Dropout Voltage | 165mV at 150mA (enables operation down to VIN = 2.76V for full-load 2.6V output) |
| Output Noise | 30µVRMS (10Hz–100kHz; measured with 0.01µF BP cap and 10µF COUT) |
| Quiescent Current | 100µA (constant across load and dropout; enables >1000h battery life in 10µA-system standby) |
| Shutdown Current | 10nA (logic-controlled active-low SHDN; supports ultra-low-power system sleep modes) |
| Thermal Shutdown | 155°C trip with 15°C hysteresis (prevents permanent damage during sustained overload) |
Pinout & Package
MAX8877EZK26+T is housed in a 5-pin thin SOT23 package (JEDEC MO-178AA), with 110°C/W junction-to-board thermal resistance. The GND pin serves dual roles: electrical ground reference and primary heat path-requiring connection to a large copper pour or ground plane for thermal management.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1. IN | Input supply connection | Accepts 2.5V–6.5V; requires ≥1µF ceramic bypass to GND for stability and line-transient suppression |
| 2. GND | Ground reference and thermal path | Electrical return for all internal circuits; must be soldered to large PCB copper area to dissipate heat and maintain <150°C junction temperature |
| 3. SHDN | Active-low enable control | Logic low (≤0.4V) disables regulator and reduces supply current to 10nA; open or high (>2.0V) enables operation |
| 4. BP | Bypass node for reference noise filtering | Connects to 0.01µF ceramic capacitor to reduce 1.25V reference noise; determines startup time and output noise floor |
| 5. OUT | Regulated output terminal | Delivers up to 150mA at 2.6V; requires ≥1µF (ESR <0.2Ω) ceramic capacitor for VOUT ≥2.5V; stable with 1–10µF range |
Key Features
| Feature | Design Value |
|---|---|
| P-channel MOSFET pass transistor | Eliminates base-drive current loss, enabling constant 100µA IQ across load and dropout conditions |
| Reverse battery protection | Blocks reverse current to ≤1mA when VIN or SHDN falls below GND, preventing damage in miswired battery installations |
| Low-noise BP pin architecture | 0.01µF capacitor on BP creates 80Hz RC filter that reduces reference noise contribution, achieving 30µVRMS output noise |
| Thermal shutdown with hysteresis | Shuts down at 155°C and re-enables only after cooling by 15°C, preventing oscillation and enabling safe fault recovery |
| 100mV output voltage increments | Factory-programmed 2.6V output enables precise matching to ASIC/core voltage requirements without external resistors |
Applications
| Cellular Handset Power Rail | PCMCIA Card LDO Supply |
|---|---|
|
Use Scenario: Powers RF transceiver ICs and baseband processors in GSM/CDMA handsets where battery voltage drops from 4.2V to 3.0V during discharge. IC Role / Device Role / Timing Role: Primary 2.6V system rail regulator delivering clean, low-noise power with minimal dropout to extend usable battery life. Use Value: 165mV dropout at 150mA allows regulation until battery reaches 2.76V, adding ~12% extra runtime versus higher-dropout alternatives. |
Use Scenario: Supplies regulated 2.6V to PCMCIA Type II card logic and interface circuitry in laptops and industrial data loggers. IC Role / Device Role / Timing Role: Standby-mode LDO providing always-on power to card-detect and wake-up circuitry with ultra-low 10nA shutdown current. Use Value: 10nA shutdown current prevents measurable battery drain during host sleep, supporting multi-week offline operation. |
| Hand-Held Instrument Reference Supply | Palmtop Computer Core Voltage |
|
Use Scenario: Powers precision ADCs, DACs, and op-amps in portable multimeters and environmental sensors requiring stable analog supply. IC Role / Device Role / Timing Role: Low-noise analog rail generator decoupled from noisy digital supplies via BP-capacitor filtering. Use Value: 30µVRMS output noise ensures <0.01% measurement error in 16-bit ADC systems without additional post-regulation filtering. |
Use Scenario: Supplies 2.6V core voltage to early ARM7/StrongARM processors in palmtop PDAs with tight thermal constraints. IC Role / Device Role / Timing Role: Thermally optimized LDO using thin SOT23 package and GND-as-heatsink layout for compact board space. Use Value: 110°C/W θJB enables full 150mA load in 60°C ambient without derating-critical for sealed, fanless enclosures. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar low-noise, low-dropout LDO applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX8877EUK26-T | Same silicon, regular SOT23-5 package (θJB = 140°C/W); 7.1mW/°C derating above +70°C vs. 9.1mW/°C for thin version | Preferred where board assembly uses standard SOT23 pick-and-place tooling; less thermally efficient in high-power-density layouts | Select MAX8877EUK26-T if thermal margin exceeds 20°C or board space permits larger footprint |
| TCS2112-2.6V | Higher 220mV dropout at 150mA; 50µVRMS noise; no reverse-battery protection; 120µA IQ | Lacks reverse-battery protection and has higher noise-unsuitable for field-replaceable battery compartments or precision analog rails | Choose only if cost sensitivity outweighs noise, thermal, and protection requirements |
Compared with MAX8877EZK26+T, the MAX8877EUK26-T offers identical electrical performance but reduced thermal capability in space-constrained designs, while the TCS2112-2.6V trades off noise, protection, and dropout to meet lower BOM cost targets-making MAX8877EZK26+T optimal for thermally demanding, battery-critical, or precision analog applications.
Availability
MAX8877EZK26+T is available at Aetrix Electronics and suitable for cellular telephones, PCMCIA cards, hand-held instruments, and palmtop computers requiring stable component supply, long-lifecycle support, and guaranteed traceability.
Supply support for MAX8877EZK26+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 equipment requiring ultra-low quiescent current, low-noise regulation, and robust protection features in minimal PCB area.
FAQ
What is the output voltage tolerance of the MAX8877EZK26+T over temperature and load?
The MAX8877EZK26+T delivers 2.6V with ±1.4% initial accuracy at +25°C and 0.1mA load. Over the full -40°C to +85°C temperature range and 0.1mA–120mA load, output voltage remains within ±3% of nominal-verified per datasheet Electrical Characteristics table. This stability ensures reliable operation for 2.6V-core microcontrollers and RF ICs without external trimming.
Does the MAX8877EZK26+T include thermal shutdown protection?
Yes, the MAX8877EZK26+T incorporates thermal-overload protection that disables the pass transistor when junction temperature exceeds +155°C. After shutdown, it automatically resumes regulation once the die cools by 15°C-providing safe, self-recovering fault handling during sustained overload or poor PCB thermal design. This feature is fully integrated and requires no external components.
Can the MAX8877EZK26+T operate with input voltage below 2.5V?
No-the MAX8877EZK26+T has a minimum input voltage rating of 2.5V per Absolute Maximum Ratings and Electrical Characteristics tables. Operation below 2.5V is not specified, may cause regulation failure or undefined behavior, and violates the device's operational envelope. For sub-2.5V inputs, consider alternative regulators such as the MAX8860 series.
What capacitor values are required for stable operation of the MAX8877EZK26+T?
For stable operation, the MAX8877EZK26+T requires a 1µF ceramic capacitor (ESR <0.2Ω) on the IN pin and a ≥1µF ceramic capacitor on the OUT pin (3.3µF recommended for VOUT <2.5V, but 1µF suffices for 2.6V). A 0.01µF ceramic capacitor must be placed on the BP pin. X7R/X5R dielectrics are preferred for temperature stability across -40°C to +85°C.
Is the MAX8877EZK26+T pin-compatible with the industry-standard '2982 regulator?
Yes-the MAX8877EZK26+T is explicitly designed as a pin-compatible upgrade to the industry-standard µA78Lxx and '2982-family regulators. Its SOT23-5 pinout (IN, GND, SHDN, BP, OUT) matches the '2982 footprint, enabling drop-in replacement without PCB redesign while delivering improved dropout (165mV vs. typical 350mV), lower noise (30µVRMS vs. >100µVRMS), and enhanced protection features.
MAX8877EZK26+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):
- 2.6V
- 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
MAX8877EZK26+T FAQ
1.How can I place an order for MAX8877EZK26+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX8877EZK26+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 MAX8877EZK26+T reliable?
The price and inventory of MAX8877EZK26+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX8877EZK26+T is usually 5 days.
3.What payment methods are accepted for MAX8877EZK26+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX8877EZK26+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX8877EZK26+T?
MAX8877EZK26+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX8877EZK26+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 MAX8877EZK26+T?
For technical support, including MAX8877EZK26+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX8877EZK26+T requirements.
6.How does Aetrix verify that MAX8877EZK26+T is sourced from the original manufacturer or authorized distributors?
All MAX8877EZK26+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 MAX8877EZK26+T meets industry standards.
7.What is the process for return or replacement of MAX8877EZK26+T?
All MAX8877EZK26+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX8877EZK26+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 MAX8877EZK26+T part is unused and in its original packaging.
Return procedure for MAX8877EZK26+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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