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Analog Devices Inc./Maxim Integrated MAX8887EZK15
- Part No.:
- MAX8887EZK15
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- SOT-23-5 Thin, TSOT-23-5
- Datasheet:
-
MAX8887EZK15.pdf
- Description:
- IC REG LIN 1.5V 300MA TSOT23-5
- Quantity:
- Payment:
- Shipping:
Inventory:2,434
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Product details
Overview
MAX8887EZK15 from Maxim Integrated is a low-noise, 1.5V fixed-output, 300mA low-dropout linear regulator with 100mV dropout at 200mA, 42µVRMS output noise, 55µA no-load supply current, and thermal/short-circuit protection - designed for powering core logic rails in battery-powered portable electronics.
For engineers reviewing the MAX8887EZK15 datasheet, MAX8887EZK15 pinout, MAX8887EZK15 application, or MAX8887EZK15 equivalent, this page delivers verified electrical parameters, SOT23-5 pin mapping, real-world use cases in handheld instruments and digital cameras, and two validated alternative regulators with documented functional and packaging differences.
Technical Context
The MAX8887EZK15 uses an internal p-channel MOSFET pass transistor (RDS(ON) ≈ 0.5Ω) to achieve ultra-low quiescent current independent of load - eliminating base-drive losses common in PNP-based LDOs. Its BP pin supports external 0.01µF bypass capacitor for noise filtering, enabling 42µVRMS output noise performance.
It features micropower shutdown (0.1µA), foldback current limiting (420mA typical at VOUT > 93% nominal), and thermal shutdown at +170°C with 20°C hysteresis. Input voltage range is 2.5V to 5.5V; output accuracy is ±3% over load (100µA–300mA) and temperature (−40°C to +85°C).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 1.5V ±3% - stable core supply for low-voltage microcontrollers and sensors. |
| Max Continuous Output Current | 300mA - sufficient for baseband processors and camera sensor interfaces. |
| Dropout Voltage | 100mV at 200mA - enables operation down to 1.6V input, extending battery life in single-cell Li-ion systems. |
| Output Noise | 42µVRMS (10Hz–100kHz) - low enough for noise-sensitive analog circuits like ADC references. |
| No-Load Supply Current | 55µA - minimizes standby drain in always-on portable devices. |
| PSRR | 60dB at 1kHz - suppresses switching noise from DC-DC converters feeding the LDO input. |
| Shutdown Current | 0.1µA - enables deep-sleep modes without compromising system wake-up latency. |
Pinout & Package
MAX8887EZK15 is housed in a thin 5-pin SOT23 package (1mm height, Z5-1 footprint), RoHS-compliant, with exposed pad not electrically connected.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - IN | Input supply connection | Accepts 2.5V–5.5V; requires 2.2µF ceramic bypass to GND for stability and transient response. |
| 2 - GND | Ground reference | Common return path for input/output capacitors and internal circuitry; must be low-impedance. |
| 3 - SHDN | Active-low enable control | Pulled low to enter 0.1µA shutdown; pulled high (to IN or ≥1.6V) for normal operation. |
| 4 - BP | Reference bypass terminal | Connects to 0.01µF ceramic capacitor to reduce reference noise and achieve 42µVRMS output noise. |
| 5 - OUT | Regulated output | Delivers up to 300mA at 1.5V; requires 2.2µF ceramic capacitor (ESR < 0.1Ω) to GND for stability. |
Key Features
| Feature | Design Value |
|---|---|
| Low-noise architecture | 42µVRMS output noise enabled by BP pin and 0.01µF capacitor - critical for precision analog subsystems. |
| p-Channel MOSFET pass element | 0.5Ω RDS(ON) eliminates base-drive current, maintaining 55µA quiescent current even at full 300mA load. |
| Foldback current limiting | Reduces current limit to 500mA (pulsed) or 420mA (continuous) when VOUT drops below 93% - protects during short-circuit or low-VIN conditions. |
| Thermal shutdown with hysteresis | Shuts down at +170°C junction temperature and re-enables only after cooling by 20°C - prevents latch-up during sustained overload. |
| Input undervoltage lockout | Disables regulation below ~2.25V VIN (2% hysteresis) - avoids unstable startup and brownout behavior. |
Applications
| Digital Cameras | Hand-Held Instruments |
|---|---|
Use Scenario: Powering image sensor analog front-end and ISP core logic in compact digital cameras. IC Role / Device Role / Timing Role: Primary 1.5V LDO delivering clean, low-noise bias for CMOS image sensors and ADCs. Use Value: 42µVRMS noise ensures minimal quantization error in 12-bit+ image capture; 100mV dropout extends usable battery range. |
Use Scenario: Supplying microcontroller core voltage and precision op-amp rails in portable multimeters and data loggers. IC Role / Device Role / Timing Role: Low-quiescent, high-accuracy voltage source for mixed-signal SoCs requiring stable 1.5V operation. Use Value: ±3% output accuracy over −40°C to +85°C maintains measurement integrity; 55µA no-load current enables multi-year battery life. |
| PCMCIA Cards | Wireless Handsets |
Use Scenario: Regulating 1.5V for PCMCIA card controller ICs and interface buffers in legacy laptop expansion slots. IC Role / Device Role / Timing Role: Compact, thermally robust LDO meeting PCMCIA power envelope constraints (≤1mm height, 727mW max dissipation). Use Value: SOT23-5 footprint fits tight PCB layouts; thermal shutdown prevents failure during hot-plug events. |
Use Scenario: Providing 1.5V supply to Bluetooth baseband processors or RF transceiver auxiliary circuits in feature phones. IC Role / Device Role / Timing Role: Secondary LDO supporting low-power subsystems where noise and efficiency are prioritized over POK signaling. Use Value: 0.1µA shutdown current enables fast sleep/wake cycles; 60dB PSRR rejects noise from nearby GSM PA switching. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar low-noise, fixed-output LDO applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS78015DRVT | 1.5V fixed, 150mA max, 25µA IQ, 175mV dropout at 150mA - lower current, lower IQ, higher dropout. | Limited to ultra-low-power MCU cores or RTCs; insufficient for 300mA camera sensor loads. | Select when system load ≤150mA and standby current is more critical than output current capability. |
| MCP1700T-1502E/TT | 1.5V fixed, 250mA max, 1.6µA IQ, 600mV dropout at 250mA - much higher dropout, lower noise rejection (45dB PSRR @1kHz). | Suitable only for non-noise-sensitive digital rails where input voltage margin exceeds 2.1V. | Choose only if board space allows larger input headroom and noise immunity is secondary to ultra-low IQ. |
Compared with TPS78015DRVT and MCP1700T-1502E/TT, the MAX8887EZK15 uniquely balances 300mA drive, 100mV dropout, and 42µVRMS noise - making it the only option among the three capable of powering noise-sensitive 1.5V analog circuits while sustaining high pulsed loads in space-constrained portable designs.
Availability
MAX8887EZK15 is available at Aetrix Electronics and suitable for digital cameras, hand-held instruments, PCMCIA cards, and wireless handsets requiring stable component supply, long-lifecycle support, and RoHS-compliant packaging.
Supply support for MAX8887EZK15 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 MAX8887/MAX8888 family was designed specifically for battery-powered portable equipment needing low-noise, low-IQ, and compact LDO solutions - targeting PDAs, cellular handsets, and notebook subsystems where size and efficiency are critical.
FAQ
What is the output voltage tolerance of the MAX8887EZK15 over temperature and load?
The MAX8887EZK15 guarantees ±3% output voltage accuracy across load current (100µA to 300mA) and operating temperature (−40°C to +85°C). At +25°C and 100mA load, typical deviation is ±1.2%. This tolerance ensures reliable operation of 1.5V logic and analog circuits without external trimming.
Does the MAX8887EZK15 include a power-OK (POK) output?
No, the MAX8887EZK15 does not include a POK output. That feature is exclusive to the MAX8888 series (e.g., MAX8888EZK15). The MAX8887EZK15 is optimized for low-noise operation and omits the open-drain POK pin - pin 4 is BP (bypass) instead of POK.
What capacitor values are required for stable operation of the MAX8887EZK15?
The MAX8887EZK15 requires a 2.2µF ceramic input capacitor (CIN) between IN and GND, and a 2.2µF ceramic output capacitor (COUT) between OUT and GND, both with ESR < 0.1Ω. Additionally, a 0.01µF ceramic capacitor must be placed on the BP pin to achieve its specified 42µVRMS noise performance.
How does the MAX8887EZK15 handle thermal overload conditions?
The MAX8887EZK15 incorporates thermal shutdown that activates at +170°C junction temperature. Once triggered, the pass transistor turns off until the die cools by 20°C (hysteresis), then resumes regulation. This pulsing behavior prevents permanent damage during sustained overload while allowing automatic recovery when ambient conditions improve.
Is the MAX8887EZK15 pin-compatible with other regulators in the MAX8887/MAX8888 family?
Yes, all MAX8887 variants (e.g., MAX8887EZK18, MAX8887EZK33) share identical 5-pin SOT23 pinout and footprint with the MAX8887EZK15. However, they are not pin-compatible with MAX8888 parts - those substitute POK for BP on pin 4, changing the terminal function and requiring PCB layout revision.
MAX8887EZK15 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- SOT-23-5 Thin, TSOT-23-5
- Packaging:
- Box
- Product Status:
- Obsolete
- Output Configuration:
- Positive
- Output Type:
- Fixed
- Number of Regulators:
- 1
- Voltage - Input (Max):
- 5.5V
- Voltage - Output (Min/Fixed):
- 1.5V
- Voltage - Output (Max):
- -
- Voltage Dropout (Max):
- -
- Current - Output:
- 300mA
- Current - Quiescent (Iq):
- 100 µA
- Current - Supply (Max):
- 65 µA
- PSRR:
- 60dB (1kHz)
- Control Features:
- Enable
- Protection Features:
- Over Current, Over Temperature, Short Circuit
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- TSOT-23-5
MAX8887EZK15 FAQ
1.How can I place an order for MAX8887EZK15 through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX8887EZK15 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 MAX8887EZK15 reliable?
The price and inventory of MAX8887EZK15 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX8887EZK15 is usually 5 days.
3.What payment methods are accepted for MAX8887EZK15?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX8887EZK15 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX8887EZK15?
MAX8887EZK15 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX8887EZK15 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 MAX8887EZK15?
For technical support, including MAX8887EZK15 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX8887EZK15 requirements.
6.How does Aetrix verify that MAX8887EZK15 is sourced from the original manufacturer or authorized distributors?
All MAX8887EZK15 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 MAX8887EZK15 meets industry standards.
7.What is the process for return or replacement of MAX8887EZK15?
All MAX8887EZK15 units undergo pre-shipment inspection (PSI). If there is an issue with MAX8887EZK15, 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 MAX8887EZK15 part is unused and in its original packaging.
Return procedure for MAX8887EZK15:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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