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Analog Devices Inc./Maxim Integrated MAX8559EBAGJ+
- Part No.:
- MAX8559EBAGJ+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 8-WFBGA, CSPBGA
- Datasheet:
-
MAX8559EBAGJ+.pdf
- Description:
- IC REG LINEAR DUAL LOW NOISE
- Quantity:
- Payment:
- Shipping:
Inventory:2,812
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Product details
Overview
MAX8559EBAGJ+ from Maxim Integrated is a dual, low-noise, low-dropout (LDO) linear regulator delivering 300mA per channel from 2.5V–6.5V input, with factory-preset outputs of 3.00V (OUTA) and 2.85V (OUTB), 32µVRMS output noise, 70dB PSRR at 10kHz, and 60mV dropout at 100mA load. It serves as a compact, high-PSRR dual power rail for portable digital systems requiring independent voltage domains.
For engineers reviewing the MAX8559EBAGJ+ datasheet, MAX8559EBAGJ+ pinout, MAX8559EBAGJ+ application, or MAX8559EBAGJ+ equivalent, this page provides verified package mapping (8-bump UCSP, 2.06mm × 1.03mm), confirmed dual-LDO shutdown control logic, thermal protection behavior, and real-world capacitor selection guidance for stable operation up to 300mA per output.
Technical Context
The MAX8559EBAGJ+ integrates two independent P-channel MOSFET pass transistors (RDS(ON) ≈ 0.6Ω each) with internal 1.25V bandgap reference and error amplifiers, enabling low-quiescent-current regulation without external feedback resistors. Its architecture supports independent enable control via SHDNA/SHDNB inputs and internal autodischarge (385Ω) on both outputs during shutdown.
It operates with no bypass capacitor required at BP for basic functionality, though a 0.01µF ceramic capacitor at BP reduces output noise to ≤32µVRMS (100Hz–100kHz). Channel-to-channel isolation exceeds 60dB above 10kHz, supporting mixed-signal applications where crosstalk between regulated rails must be minimized.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage (OUTA / OUTB) | 3.00V / 2.85V - factory-preset, fixed-output configuration eliminating external resistor networks and layout sensitivity. |
| Max Output Current per LDO | 300mA - supports high-current digital loads (e.g., baseband processors, RF ICs) with 4.7µF ceramic output capacitors. |
| Dropout Voltage | 60mV at 100mA - enables extended battery runtime in single-cell Li-ion (2.8V cutoff) and multi-cell alkaline systems. |
| Output Noise | 32µVRMS (100Hz–100kHz) - meets stringent analog/RF supply requirements when BP is bypassed with 0.01µF. |
| PSRR | 70dB at 10kHz - suppresses switching noise from adjacent DC-DC converters in hybrid power architectures. |
| Quiescent Current | 115µA per LDO - ensures ultra-low standby power in always-on subsystems (e.g., RTC, sensor hubs). |
| Shutdown Supply Current | 0.01µA - reduces system-level leakage during deep sleep modes across both regulators and reference. |
Pinout & Package
MAX8559EBAGJ+ is packaged in an 8-bump UCSP (2.06mm × 1.03mm, 0.4mm pitch), lead-free, with exposed silicon die surface for thermal conduction. The package has no traditional leads; bumps serve as solder interconnects directly to PCB pads.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| INA / INB | Input supply terminals for LDO A and B | Shared input domain; must be connected externally; accepts 2.5V–6.5V; requires ≥2.2µF ceramic bypass to GND. |
| OUTA / OUTB | Regulated output terminals | Deliver 3.00V and 2.85V respectively; each sources up to 300mA; internally discharged to GND via 385Ω in shutdown. |
| SHDNA / SHDNB | Independent logic-controlled shutdown inputs | Active-low; drive low to disable respective LDO; both low disables entire IC including reference (10nA typ IQ). |
| BP | Reference noise bypass terminal | Connects to internal 1.25V reference; 0.01µF ceramic cap here reduces output noise by >85% vs. no cap. |
| GND | Power ground reference | Common return path for all regulators and internal circuitry; must be low-impedance connection to PCB ground plane. |
Key Features
| Feature | Design Value |
|---|---|
| Dual independent LDOs | Enables separate power domains for core logic (3.00V) and I/O/peripherals (2.85V) without cross-regulation interference. |
| No external feedback resistors | Reduces BOM count and layout area; eliminates resistor tolerance drift impact on output accuracy (±3% over temp/load). |
| Internal P-channel pass transistors | Eliminates base-drive current loss; achieves 60mV dropout at 100mA and <115µA quiescent current independent of load. |
| Thermal and short-circuit protection | Auto-shutdown at +160°C junction temperature with 10°C hysteresis; continuous short-circuit survival without damage. |
| UCSP footprint (2.06mm × 1.03mm) | Minimizes PCB area by >60% vs. TDFN; ideal for space-constrained handhelds and wearables. |
Applications
| Cellular Handsets | Digital Cameras |
|---|---|
Use Scenario: Powering baseband processor core (3.00V) and image sensor interface (2.85V) from single Li-ion cell. IC Role / Device Role: Dual-rail LDO providing isolated, low-noise supplies with independent enable sequencing. Use Value: Enables simultaneous core and peripheral operation while maintaining PSRR >70dB against RF switcher noise. | Use Scenario: Supplying CMOS image sensor (2.85V) and ISP/DSP core (3.00V) in compact camera modules. IC Role / Device Role: Low-dropout regulator delivering stable voltages during burst-mode capture with fast load-transient response. Use Value: 15mV typical overshoot on 10µA→100mA step load ensures minimal image corruption during exposure transitions. |
| Notebook Subsystems | Wireless LAN Cards |
Use Scenario: Providing auxiliary 3.00V rail for embedded controller and 2.85V for USB PHY in ultrabook daughterboards. IC Role / Device Role: Compact dual-LDO replacing discrete solutions to meet strict height and thermal constraints. Use Value: 2mm² UCSP footprint saves >1.5mm² board area vs. dual-SOT23; 1951mW TDFN alternative not needed due to low power dissipation. | Use Scenario: Regulating power for WLAN SoC (3.00V) and RF front-end (2.85V) in mini-PCIe cards. IC Role / Device Role: High-PSRR dual regulator suppressing noise coupling between digital baseband and sensitive RF receivers. Use Value: >60dB channel-to-channel isolation at 100kHz prevents TX noise from degrading RX sensitivity. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-LDO regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS7A202830PDBVR | Single-channel, 300mA LDO with 2.8V/3.0V dual-output variants available only as separate parts; no integrated dual-output version. | Requires two devices for dual-rail operation; increases PCB area and component count. | Select only if independent thermal management per rail is required or UCSP footprint is incompatible with assembly process. |
| RT9013-30285GJ6F | Fixed dual-output LDO (3.0V/2.85V), 300mA per channel, but uses N-channel pass transistors resulting in higher dropout (≥120mV at 100mA) and higher IQ (250µA). | Higher dropout limits usable battery range; higher quiescent current reduces standby time in always-on sensors. | Acceptable for cost-sensitive designs where battery life and low-noise performance are secondary to BOM cost. |
Compared with TPS7A202830PDBVR and RT9013-30285GJ6F, the MAX8559EBAGJ+ uniquely delivers true dual-channel integration in a single 2mm² UCSP, with lowest dropout (60mV), lowest noise (32µVRMS), and lowest quiescent current (115µA per LDO), making it optimal for space- and power-constrained portable electronics.
Availability
MAX8559EBAGJ+ is available at Aetrix Electronics and suitable for cellular handsets, digital cameras, notebook subsystems, and wireless LAN cards requiring stable component supply with guaranteed long-term availability and RoHS-compliant packaging.
Supply support for MAX8559EBAGJ+ 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 MAX8559 belongs to Maxim's ultra-low-noise, dual-LDO product line designed specifically for battery-powered portable electronics where compact size, low dropout, and high PSRR are critical for signal integrity and runtime.
FAQ
What output voltages does the MAX8559EBAGJ+ provide?
The MAX8559EBAGJ+ provides factory-preset output voltages of 3.00V on OUTA and 2.85V on OUTB. These values are laser-trimmed during production and cannot be adjusted externally. The 'GJ' suffix in MAX8559EBAGJ+ directly corresponds to this specific dual-voltage configuration per Maxim's Output Voltage Selector Guide.
Does the MAX8559EBAGJ+ require external capacitors for stability?
Yes, the MAX8559EBAGJ+ requires external ceramic capacitors: minimum 2.2µF at each input (INA/INB) and output (OUTA/OUTB) for loads up to 150mA, or 4.7µF for full 300mA capability. A 0.01µF capacitor at BP is optional but recommended to achieve the specified 32µVRMS output noise.
What is the maximum power dissipation of the MAX8559EBAGJ+ in its UCSP package?
The MAX8559EBAGJ+ in the 8-bump UCSP package has a maximum continuous power dissipation of 379mW at +70°C ambient, derating by 4.7mW/°C above that temperature. This limit assumes proper PCB thermal design with adequate copper pour under the exposed die surface.
How does shutdown work on the MAX8559EBAGJ+?
The MAX8559EBAGJ+ features independent active-low shutdown inputs: SHDNA controls OUTA, SHDNB controls OUTB. Driving either low disables its respective LDO; driving both low disables the entire IC-including the internal reference-reducing total supply current to 0.01µA. Each output is actively discharged to GND through a 385Ω internal resistor during shutdown.
Is the MAX8559EBAGJ+ pin-compatible with other MAX8559 variants?
Yes, all MAX8559 variants-including MAX8559EBAGJ+, MAX8559ETAxxx+, and MAX8559EBAxxx-share identical 8-pin TDFN and 8-bump UCSP pinouts and electrical interfaces. The only differences are output voltage configuration and package type; no PCB redesign is needed when migrating between UCSP and TDFN versions of the same voltage code.
MAX8559EBAGJ+ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- 8-WFBGA, CSPBGA
- Packaging:
- Bulk
- Product Status:
- Active
- Output Configuration:
- Positive
- Output Type:
- Fixed
- Number of Regulators:
- 2
- Voltage - Input (Max):
- 6.5V
- Voltage - Output (Min/Fixed):
- 3V, 2.85V
- Voltage - Output (Max):
- -
- Voltage Dropout (Max):
- 0.12V @ 100mA
- Current - Output:
- 300mA, 300mA
- Current - Quiescent (Iq):
- 290 µA
- Current - Supply (Max):
- -
- PSRR:
- 70dB ~ 54dB @ 10kHz ~ 100kHz
- Control Features:
- Current Limit, 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:
- 8-UCSP (2.02x1.02)
MAX8559EBAGJ+ FAQ
1.How can I place an order for MAX8559EBAGJ+ through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX8559EBAGJ+ 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 MAX8559EBAGJ+ reliable?
The price and inventory of MAX8559EBAGJ+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX8559EBAGJ+ is usually 5 days.
3.What payment methods are accepted for MAX8559EBAGJ+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX8559EBAGJ+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX8559EBAGJ+?
MAX8559EBAGJ+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX8559EBAGJ+ 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 MAX8559EBAGJ+?
For technical support, including MAX8559EBAGJ+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX8559EBAGJ+ requirements.
6.How does Aetrix verify that MAX8559EBAGJ+ is sourced from the original manufacturer or authorized distributors?
All MAX8559EBAGJ+ 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 MAX8559EBAGJ+ meets industry standards.
7.What is the process for return or replacement of MAX8559EBAGJ+?
All MAX8559EBAGJ+ units undergo pre-shipment inspection (PSI). If there is an issue with MAX8559EBAGJ+, 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 MAX8559EBAGJ+ part is unused and in its original packaging.
Return procedure for MAX8559EBAGJ+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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