My Inquiry
My Account
Analog Devices Inc./Maxim Integrated MAX8875EZK29
- Part No.:
- MAX8875EZK29
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- -
- Datasheet:
-
MAX8875EZK29.pdf
- Description:
- 150MA, LOW-DROPOUT LINEAR REGULA
- Quantity:
- Payment:
- Shipping:
Inventory:2,384
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
MAX8875EZK29 from Maxim Integrated is a low-noise, low-dropout linear regulator with 2.84V preset output voltage, 150mA maximum output current, 165mV dropout at full load, 30µVRMS output noise, and 100µA operating supply current - designed for battery-powered portable electronics requiring stable, clean power under light-to-moderate load.
For engineers reviewing the MAX8875EZK29 datasheet, MAX8875EZK29 pinout, MAX8875EZK29 application, or MAX8875EZK29 equivalent, this page delivers verified technical context, exact pin functions, real-world application mapping, and validated alternative options for portable power management design.
Technical Context
The MAX8875EZK29 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.
Noise reduction is implemented via a dedicated BP pin with external 0.01µF capacitor forming an 80Hz low-pass filter; thermal shutdown activates at +155°C with 15°C hysteresis, and reverse battery protection limits reverse current to 1mA when IN or SHDN falls below GND.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | 2.84V ±1.4% (factory-preset; enables direct replacement of 2.8V–2.9V rails without external resistors) |
| Max Output Current | 150mA (supports single-core microcontrollers, RF front-ends, and sensor subsystems) |
| Dropout Voltage | 165mV at 150mA (enables operation down to 3.005V input with 2.84V output - extends Li-ion battery runtime) |
| Output Noise | 30µVRMS (10Hz–100kHz, with 0.01µF BP cap; suitable for noise-sensitive analog/RF circuits) |
| Quiescent Current | 100µA (constant across load and dropout; critical for standby power in always-on devices) |
| Shutdown Current | 10nA (logic-controlled SHDN pin; enables ultra-low-power deep-sleep states) |
| Input Voltage Range | 2.5V to 6.5V (covers single-cell Li-ion, Li-poly, and dual-cell alkaline/NiMH systems) |
Pinout & Package
MAX8875EZK29 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 | Regulator input supply | Accepts 2.5V–6.5V; requires ≥1µF ceramic bypass to GND for stability and line-transient suppression |
| 2 - GND | Power ground and thermal path | Serves as primary heat sink; must connect to large copper area or ground plane for thermal reliability |
| 3 - SHDN | Active-low enable/shutdown control | Logic low disables regulator and reduces supply current to 10nA; no auto-discharge (MAX8878 feature only) |
| 4 - BP | Bypass reference noise node | Connects to 0.01µF ceramic capacitor to reduce output noise; start-up time increases with larger values |
| 5 - OUT | Regulated output | Delivers up to 150mA at 2.84V; requires 1µF (≥2.5V) or 3.3µF (<2.5V) output capacitor with ESR <0.2Ω |
Key Features
| Feature | Design Value |
|---|---|
| P-channel MOSFET pass element | Eliminates base-drive current loss; maintains 100µA IQ across all load conditions including dropout |
| Reverse battery protection | Blocks >99% of reverse current (≤1mA) when IN or SHDN goes negative - prevents damage in misinserted battery scenarios |
| Thermal shutdown with hysteresis | Shuts down at +155°C and re-enables at +140°C - prevents latch-up during sustained overload or poor heatsinking |
| Current limiting | Guarantees ≥160mA minimum current limit (up to 390mA typical); allows indefinite short-circuit survival |
| 1.4% output voltage accuracy | Ensures tight regulation over temperature (-40°C to +85°C) and load (0.1–120mA), reducing need for post-regulation trimming |
Applications
| Cellular Handset Power Rail | PCMCIA Card LDO Supply |
|---|---|
|
Use Scenario: Powers baseband processor I/O or RF transceiver bias circuitry in GSM/UMTS handsets using single-cell Li-ion battery. IC Role / Device Role / Timing Role: Primary 2.84V low-noise LDO delivering clean power to noise-sensitive RF sections and digital logic interfaces. Use Value: 30µVRMS noise and 165mV dropout extend usable battery range by ~120mV and prevent RF desense during transmit bursts. |
Use Scenario: Supplies regulated 2.84V to PCMCIA Type II card controllers and interface logic in laptop expansion slots. IC Role / Device Role / Timing Role: Standby and active-mode LDO ensuring stable voltage during hot-insertion and bus arbitration sequences. Use Value: 10nA shutdown current enables zero-power retention during card ejection; 100µA IQ supports instant wake-up without reset delay. |
| Hand-Held Medical Instrument | Palmtop Computer Core Logic |
|
Use Scenario: Powers ADC reference buffer and low-power microcontroller in portable blood glucose meters or pulse oximeters. IC Role / Device Role / Timing Role: Precision analog supply rail decoupling sensitive measurement circuitry from noisy digital domains. Use Value: 1.4% output accuracy and low drift vs. temperature ensure consistent calibration across clinical operating environments (-10°C to +50°C). |
Use Scenario: Supplies 2.84V core voltage to early ARM7-based palmtop CPUs and SRAM during active and suspend modes. IC Role / Device Role / Timing Role: Main system LDO coordinating with PMU sequencing to manage power state transitions. Use Value: Pin-compatible '2982 footprint allows drop-in upgrade from legacy regulators; thin SOT23 saves board area in compact clamshell designs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar low-noise LDO applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX8877EZK29 | Same pinout, same 2.84V output, but lacks auto-discharge; identical noise, dropout, and IQ specs | No output discharge on shutdown - acceptable where residual VOUT hold-up is not hazardous | Select MAX8877EZK29 if MAX8878's auto-discharge is unnecessary and cost minimization is prioritized |
| MCP1703T-2842E/MB | 2.84V output, 250mA rating, higher 250mV dropout at 150mA, 40µVRMS noise, SOT23-5 package | Higher dropout and noise reduce battery life and RF performance margin in portable designs | Choose MCP1703T-2842E/MB only if higher current headroom is required and noise/dropout trade-offs are acceptable |
Compared with MAX8875EZK29, MAX8877EZK29 offers identical regulation performance without auto-discharge overhead, while MCP1703T-2842E/MB trades lower cost for measurable degradation in dropout voltage and output noise - making MAX8875EZK29 optimal for noise- and efficiency-critical portable LDO roles.
Availability
MAX8875EZK29 is available at Aetrix Electronics and suitable for cellular handsets, PCMCIA cards, hand-held medical instruments, and palmtop computers requiring stable component supply with guaranteed long-term manufacturability.
Supply support for MAX8875EZK29 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 demanding industrial and portable applications.
The MAX8877/MAX8878 family was engineered specifically for battery-powered portable electronics - emphasizing ultra-low IQ, low noise, and robust protection features in minimal SOT23 footprints.
FAQ
What is the exact output voltage tolerance of the MAX8875EZK29 over temperature and load?
The MAX8875EZK29 guarantees ±1.4% output voltage accuracy across -40°C to +85°C ambient temperature and 0.1mA to 120mA load current, with tighter ±1.4% tolerance at +25°C and 0.1mA load. This specification ensures reliable operation in consumer-grade portable devices without requiring post-production calibration. The MAX8875EZK29 maintains this accuracy due to its trimmed internal resistor divider and stable 1.25V bandgap reference.
Does the MAX8875EZK29 include auto-discharge functionality like the MAX8878 series?
No, the MAX8875EZK29 does not include auto-discharge functionality. That feature is exclusive to the MAX8878 variant (e.g., MAX8878EZK29), which actively pulls the OUT pin to GND during shutdown. The MAX8875EZK29 enters low-current shutdown (10nA) but leaves the output floating or held by external capacitance - confirming its identity as a MAX8877-series derivative per ordering code and functional documentation.
What capacitor values are required for stable operation of the MAX8875EZK29?
For stable operation, the MAX8875EZK29 requires a 1µF ceramic input capacitor (X5R/X7R dielectric) and a 1µF output capacitor (ESR <0.2Ω) when VOUT ≥ 2.5V - which applies directly to the 2.84V MAX8875EZK29. A 0.01µF ceramic capacitor must be placed on the BP pin. These values ensure stability across -40°C to +85°C and up to 150mA load, as validated in the device's Region of Stable COUT ESR vs. Load Current graph.
Is the MAX8875EZK29 pin-compatible with the industry-standard '2982 regulator?
Yes, the MAX8875EZK29 is explicitly pin-compatible with the industry-standard µA78Lxx and MC78Lxx '2982-family regulators, sharing identical SOT23-5 pinout (IN, GND, SHDN, BP, OUT). This compatibility enables direct replacement in existing designs without PCB modification - a key advantage confirmed in the MAX8877/MAX8878 datasheet General Description and Pin Configuration sections.
What protection features are integrated into the MAX8875EZK29?
The MAX8875EZK29 integrates thermal shutdown (trip at +155°C, 15°C hysteresis), short-circuit protection (≥160mA current limit), and reverse battery protection (limits reverse current to ≤1mA when IN or SHDN falls below GND). It does not include output auto-discharge or overvoltage protection. All protections are fully operational across the -40°C to +85°C temperature range and require no external components to function.
MAX8875EZK29 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- *
- Package/Case:
- -
- Packaging:
- Bulk
- Product Status:
- Active
- Output Configuration:
- -
- Output Type:
- -
- Number of Regulators:
- -
- Voltage - Input (Max):
- -
- Voltage - Output (Min/Fixed):
- -
- Voltage - Output (Max):
- -
- Voltage Dropout (Max):
- -
- Current - Output:
- -
- Current - Quiescent (Iq):
- -
- Current - Supply (Max):
- -
- PSRR:
- -
- Control Features:
- -
- Protection Features:
- -
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- -
- Supplier Device Package:
- -
MAX8875EZK29 FAQ
1.How can I place an order for MAX8875EZK29 through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX8875EZK29 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 MAX8875EZK29 reliable?
The price and inventory of MAX8875EZK29 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX8875EZK29 is usually 5 days.
3.What payment methods are accepted for MAX8875EZK29?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX8875EZK29 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX8875EZK29?
MAX8875EZK29 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX8875EZK29 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 MAX8875EZK29?
For technical support, including MAX8875EZK29 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX8875EZK29 requirements.
6.How does Aetrix verify that MAX8875EZK29 is sourced from the original manufacturer or authorized distributors?
All MAX8875EZK29 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 MAX8875EZK29 meets industry standards.
7.What is the process for return or replacement of MAX8875EZK29?
All MAX8875EZK29 units undergo pre-shipment inspection (PSI). If there is an issue with MAX8875EZK29, 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 MAX8875EZK29 part is unused and in its original packaging.
Return procedure for MAX8875EZK29:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MAX8875EZK29 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
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 …
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…
