My Inquiry
My Account
Analog Devices Inc./Maxim Integrated MAX8878EZK15+T
- Part No.:
- MAX8878EZK15+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- SOT-23-5 Thin, TSOT-23-5
- Datasheet:
-
MAX8878EZK15+T.pdf
- Description:
- IC REG LIN 1.5V 150MA TSOT23-5
- Quantity:
- Payment:
- Shipping:
Inventory:2,890
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
MAX8878EZK15+T from Maxim Integrated is a low-noise, low-dropout linear regulator with 1.5V fixed output, 150mA max load, 165mV dropout at full load, 30µVRMS output noise, and integrated auto-discharge function - designed for battery-powered portable electronics requiring stable low-voltage bias.
For engineers reviewing the MAX8878EZK15+T datasheet, MAX8878EZK15+T pinout, MAX8878EZK15+T application, or MAX8878EZK15+T equivalent, key selection criteria include shutdown current (10nA), thermal protection (155°C trip), reverse battery protection, thin SOT23-5 package footprint, and BP-capacitor–enabled noise filtering.
Technical Context
The MAX8878EZK15+T uses an internal P-channel MOSFET pass transistor (1.1Ω typical RDS(ON)) to achieve low quiescent current (100µA across load and dropout conditions) and eliminate base-drive losses inherent in PNP-based regulators. Its error amplifier compares a 1.25V bandgap reference against feedback from an internal resistor divider tied to the OUT pin.
It integrates logic-controlled active shutdown (SHDN pin), thermal shutdown (155°C with 15°C hysteresis), short-circuit protection, and reverse-battery protection that limits reverse current to 1mA. The MAX8878 variant uniquely includes auto-discharge via a 300Ω internal discharge path from OUT to GND during shutdown.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 1.5V ±1.4% over -40°C to +85°C - ensures stable core/bias rail for low-voltage logic and analog circuitry. |
| Max Output Current | 150mA continuous - supports moderate-power RF modules, sensors, and microcontroller peripherals. |
| Dropout Voltage | 165mV at 150mA - enables operation down to 1.65V input, extending usable battery life in single-cell Li-ion or alkaline systems. |
| Output Noise | 30µVRMS (10Hz–100kHz) with 0.01µF BP cap - meets noise-sensitive analog supply requirements without external LDO post-filtering. |
| Quiescent Current | 100µA at full load and in dropout - maintains ultra-low standby power for always-on subsystems. |
| Shutdown Current | 10nA typical - reduces system-level leakage during deep sleep modes in portable devices. |
| Thermal Shutdown | 155°C trip with 15°C hysteresis - provides self-recovering fault protection under sustained overload or poor PCB thermal design. |
Pinout & Package
MAX8878EZK15+T is housed in a 5-pin thin SOT23 package (JEDEC MO-178AA), optimized for space-constrained portable PCBs with enhanced thermal performance (θJB = 110°C/W).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 IN | Input voltage supply | Accepts 2.5V–6.5V; requires ≥1µF ceramic bypass to GND for stability and line-transient immunity. |
| 2 GND | Power ground and thermal pad | Serves as primary heat path; must connect to large copper area or ground plane for thermal management. |
| 3 SHDN | Active-low enable/shutdown control | Pulling low disables regulation and activates auto-discharge (MAX8878 only); high-Z when unconnected. |
| 4 BP | Bypass capacitor connection | Connects to 0.01µF ceramic cap to filter reference noise; sets output noise floor and startup timing. |
| 5 OUT | Regulated output | Delivers up to 150mA at 1.5V; requires ≥3.3µF ceramic cap (ESR <0.2Ω) for VOUT < 2.5V stability. |
Key Features
| Feature | Design Value |
|---|---|
| Auto-discharge function | 300Ω internal discharge path actively pulls OUT to GND during SHDN assertion - prevents floating outputs and residual charge in handheld power sequencing. |
| Reverse battery protection | Limits reverse current to ≤1mA when IN or SHDN falls below GND - eliminates need for external series diode in battery-input designs. |
| P-channel MOSFET pass element | 1.1Ω typical RDS(ON) enables constant 100µA IQ regardless of load or dropout - extends battery runtime vs. bipolar LDOs. |
| Low-noise BP pin architecture | Internal 200kΩ resistor + external 0.01µF BP cap forms 80Hz low-pass filter - achieves 30µVRMS noise without compromising transient response. |
| Thermal and short-circuit protection | Self-resetting shutdown at 155°C with 15°C hysteresis and infinite short-circuit tolerance - ensures robustness in unattended embedded deployments. |
Applications
| Cellular Handsets | PCMCIA Cards |
|---|---|
|
Use Scenario: Powering baseband processor I/O banks and RF transceiver bias rails in GSM/UMTS handsets. IC Role / Device Role / Timing Role: Primary 1.5V low-noise supply for digital core and analog front-end circuitry. Use Value: 30µVRMS noise and 165mV dropout preserve signal integrity and extend talk time from single-cell Li-ion batteries. |
Use Scenario: Providing regulated 1.5V supply to PCMCIA card controllers and interface logic in laptops and PDAs. IC Role / Device Role / Timing Role: Standby and active-mode voltage regulator with fast load-transient response. Use Value: 10nA shutdown current minimizes battery drain during card ejection or host sleep states. |
| Hand-Held Instruments | Electronic Planners |
|
Use Scenario: Supplying precision ADC reference buffers and sensor signal conditioning stages in portable multimeters and data loggers. IC Role / Device Role / Timing Role: Low-drift, low-noise analog supply rail decoupled from noisy digital domains. Use Value: ±1.4% output accuracy and 30µVRMS noise ensure measurement repeatability without calibration drift. |
Use Scenario: Delivering stable 1.5V to SRAM memory and real-time clock circuits in battery-backed organizers. IC Role / Device Role / Timing Role: Always-on backup regulator maintaining memory retention during main power loss. Use Value: Auto-discharge prevents unintended SRAM write cycles during power-down transitions. |
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 |
|---|---|---|---|
| MAX8877EZK15+T | No auto-discharge; identical pinout, specs, and package - differs only in SHDN behavior. | Preferred where output discharge is unnecessary or externally managed. | Select MAX8877EZK15+T if system-level discharge is handled by MCU GPIO or external FET. |
| MCP1700T-1502E/TT | Higher 250mV dropout at 150mA; no BP pin or auto-discharge; 1.8µA quiescent current. | Suitable for cost-sensitive, non-noise-critical applications with higher input headroom. | Choose MCP1700T-1502E/TT only when 30µVRMS noise and 165mV dropout are not required. |
Compared with MAX8877EZK15+T, the MAX8878EZK15+T adds auto-discharge without sacrificing noise, dropout, or quiescent current - making it optimal for portable systems requiring clean power sequencing. Against MCP1700T-1502E/TT, it delivers superior noise performance and lower dropout at the cost of slightly higher BOM count due to the BP capacitor.
Availability
MAX8878EZK15+T is available at Aetrix Electronics and suitable for cellular handsets, PCMCIA cards, hand-held instruments, and electronic planners requiring stable component supply, long-lifecycle support, and traceable sourcing for production programs.
Supply support for MAX8878EZK15+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 engineered specifically for battery-powered portable electronics, emphasizing ultra-low quiescent current, low-noise regulation, and robust protection features in minimal-footprint packages.
FAQ
What is the output voltage tolerance of the MAX8878EZK15+T over temperature and load?
The MAX8878EZK15+T guarantees ±1.4% output voltage accuracy across -40°C to +85°C ambient temperature and 0.1mA to 120mA load current for 1.5V output. This specification holds for both regular and thin SOT23-5 packages and ensures stable biasing for sensitive analog and digital circuitry without external trimming.
Does the MAX8878EZK15+T require an external bypass capacitor on the BP pin, and why?
Yes, the MAX8878EZK15+T requires a 0.01µF ceramic capacitor between BP and GND to achieve its specified 30µVRMS output noise. The BP pin connects to an internal 200kΩ resistor forming an 80Hz low-pass filter for the bandgap reference - omitting this capacitor increases output noise significantly and degrades PSRR above 100Hz.
How does the auto-discharge function operate in the MAX8878EZK15+T during shutdown?
When the SHDN pin is pulled low, the MAX8878EZK15+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 interfering with downstream logic states or causing latch-up in powered-off subsystems - a feature absent in the MAX8877 variant.
What thermal derating applies to the MAX8878EZK15+T in thin SOT23-5 package?
The MAX8878EZK15+T in thin SOT23-5 has θJB = 110°C/W and a continuous power dissipation limit of 727mW at +70°C ambient, derating at 9.1mW/°C above that temperature. To maintain junction temperature below +150°C, PCB layout must use generous GND copper area for heat spreading, especially under sustained 150mA loads.
Can the MAX8878EZK15+T be used with input voltages below 2.5V?
No - the MAX8878EZK15+T has a minimum input voltage rating of 2.5V per Absolute Maximum Ratings and Electrical Characteristics tables. Operation below 2.5V risks improper regulation, increased dropout, or failure to maintain 1.5V output; it is not characterized or guaranteed for sub-2.5V operation.
MAX8878EZK15+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):
- 1.5V
- 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
MAX8878EZK15+T FAQ
1.How can I place an order for MAX8878EZK15+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX8878EZK15+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 MAX8878EZK15+T reliable?
The price and inventory of MAX8878EZK15+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX8878EZK15+T is usually 5 days.
3.What payment methods are accepted for MAX8878EZK15+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX8878EZK15+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX8878EZK15+T?
MAX8878EZK15+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX8878EZK15+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 MAX8878EZK15+T?
For technical support, including MAX8878EZK15+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX8878EZK15+T requirements.
6.How does Aetrix verify that MAX8878EZK15+T is sourced from the original manufacturer or authorized distributors?
All MAX8878EZK15+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 MAX8878EZK15+T meets industry standards.
7.What is the process for return or replacement of MAX8878EZK15+T?
All MAX8878EZK15+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX8878EZK15+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 MAX8878EZK15+T part is unused and in its original packaging.
Return procedure for MAX8878EZK15+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MAX8878EZK15+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.…
