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Analog Devices Inc./Maxim Integrated MAX710C/D
- Part No.:
- MAX710C/D
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- -
- Datasheet:
-
MAX710C/D.pdf
- Description:
- IC REG BUCK BOOST 3.3V/5V 1.1A
- Quantity:
- Payment:
- Shipping:
Inventory:2,542
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Product details
Overview
MAX710C/D from Maxim Integrated is a step-up/down DC-DC converter IC integrating a PFM-controlled boost stage and a low-dropout linear regulator, delivering fixed 3.3V or 5V output at up to 500mA (VIN = 3.6V), with input range +1.8V to +11V and typical 85% efficiency in boost mode. It serves as the primary power management unit in battery-powered portable electronics requiring seamless transition between buck and boost operation.
For engineers reviewing the MAX710C/D datasheet, MAX710C/D pinout, MAX710C/D application, or MAX710C/D equivalent, key selection considerations include its dual-mode N/E control for noise/efficiency trade-off, 0.2µA shutdown current, 16-pin narrow SO package, and built-in low-battery comparator with programmable threshold.
Technical Context
The MAX710C/D implements pulse-frequency modulation (PFM) with fixed 1µs off-time and variable on-time to drive its internal N-channel MOSFET switch, enabling high light-load efficiency. Its integrated LDO uses a P-channel pass transistor with 0.5V typical headroom (VFV) when configured for low-noise mode.
Operating configuration is determined by the N/E pin: tied to GND for high-efficiency mode (linear regulator acts as a switch during boost), or to PS for low-noise mode (maintains VFV headroom for ripple rejection). The 3/5 pin selects between 3.3V and 5V output, while ILIM sets peak switch current to 0.8A or 1.5A.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 3.3V or 5V selectable via 3/5 pin; no external feedback resistors required |
| Input Voltage Range | +1.8V to +11V - supports single-cell Li+, multi-cell alkaline, and AC adapter inputs |
| Max Output Current | 500mA at VIN = 3.6V, VOUT = 5V - sufficient for microcontrollers and sensors in portable systems |
| Shutdown Current | 0.2µA - enables ultra-low-power standby in battery-critical applications |
| Efficiency | Typical 85% in boost mode - reduces thermal load and extends battery life |
| Package | 16-pin narrow SO - industry-standard footprint with verified thermal performance |
| Operating Temp | 0°C to +70°C - commercial-grade rating suitable for consumer and industrial portable equipment |
Pinout & Package
The MAX710C/D is housed in a 16-pin narrow SOIC (SO) package with exposed pad not specified; thermal dissipation relies on PCB copper area connected to PGND pins (pins 2 and 15).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| LX (pins 1, 16) | Drain of internal N-channel MOSFET | Switching node connecting to external inductor; requires short, low-inductance layout |
| PGND (pins 2, 15) | Power ground return | Dedicated low-impedance path for high-current boost switching; must be separated from analog ground |
| SHDN (pin 4) | Global shutdown control | Active-low input that disconnects input from output and draws only 0.2µA in shutdown |
| STBY (pin 5) | Step-up converter disable | Leaves LDO active at 7µA quiescent current for system wake-up capability |
| N/E (pin 7) | Noise/Efficiency mode select | GND = high-efficiency (LDO as switch); PS = low-noise (LDO maintains VFV headroom) |
| 3/5 (pin 6) | Output voltage select | GND = 5V output; OUT = 3.3V output - no external components needed |
| LBO (pin 8) | Low-battery comparator open-drain output | Signals battery depletion; requires external pull-up for logic-level interface |
| REF (pin 13) | 1.28V precision reference output | Bypassed with 0.1µF capacitor; used internally and optionally for external monitoring |
Key Features
| Feature | Design Value |
|---|---|
| Integrated step-up/down architecture | Eliminates need for separate boost + LDO ICs, reducing BOM count and board space |
| Configurable noise/efficiency trade-off | N/E pin allows real-time selection between 85% efficiency (high-efficiency mode) or superior ripple rejection (low-noise mode) |
| Built-in low-battery detection | LBI+/LBI− inputs and LBO output enable programmable battery monitoring without external comparators |
| No external FETs required | Internal N-channel switch and P-channel LDO pass element simplify design and improve reliability |
| Ultra-low shutdown current | 0.2µA shutdown draw extends shelf life and enables long-term storage in battery-powered devices |
Applications
| Digital Cameras | Single-Cell Lithium-Powered Portables |
|---|---|
Use Scenario: Powering image sensor, processor, and LCD backlight from a single Li+ cell whose voltage sags from 4.2V to 2.8V during discharge. IC Role / Device Role / Timing Role: Primary power supply IC providing regulated 3.3V/5V output across full battery range using automatic step-up/step-down mode switching. Use Value: Enables uninterrupted operation without brownouts; 85% efficiency preserves battery runtime during video capture. | Use Scenario: Supplying MCU, RF transceiver, and display in compact handheld medical or IoT devices powered by one Li+ cell. IC Role / Device Role / Timing Role: Core voltage regulator managing dynamic load transients while maintaining tight output regulation during sleep/wake cycles. Use Value: 0.2µA shutdown current minimizes self-discharge; STBY mode supports fast wake-up with only 7µA quiescent draw. |
| 2–4-Cell AA Alkaline Equipment | Battery-Powered Devices with AC Input Adapters |
Use Scenario: Powering portable test meters or barcode scanners using 2–4 alkaline cells (3V–6V nominal), where input may exceed or fall below regulated output. IC Role / Device Role / Timing Role: Dual-mode DC-DC converter ensuring stable 3.3V/5V rail regardless of battery state or load variation. Use Value: 1.8V start-up capability allows operation down to nearly-dead batteries; ±0.5% load regulation prevents digital logic errors. | Use Scenario: Consumer electronics (e.g., cordless phones, portable audio) that operate from either batteries or wall adapters (5–12V DC). IC Role / Device Role / Timing Role: Seamless input source selector and voltage regulator, automatically adapting to battery-only, adapter-only, or hybrid modes. Use Value: N/E pin configuration (e.g., Figure 2a) enables high-efficiency operation with both battery (< VOUT) and adapter (> VOUT) inputs without manual reconfiguration. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar step-up/down DC-DC converter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX711C/D | Adjustable output (2.7V–5.5V) via FB pin; requires two external resistors; identical pinout and feature set otherwise | Suitable where flexible output voltage or post-production calibration is needed; not drop-in for fixed-output designs | Select MAX711C/D only if adjustable output is required; MAX710C/D avoids resistor placement and tolerance sensitivity |
| TPS63020DSJR | Higher 96% peak efficiency; 2.5V–5.5V input; 1.2V–5.5V adjustable output; 2.4MHz fixed-frequency PWM instead of PFM | Better suited for noise-sensitive RF sections due to fixed frequency; lacks integrated low-battery comparator | Choose TPS63020DSJR for higher efficiency and EMI-controlled switching; retain MAX710C/D when low-battery monitoring and ultra-low shutdown current are critical |
Compared with MAX711C/D, the MAX710C/D eliminates feedback resistor network complexity and improves production yield for fixed-voltage systems; versus TPS63020DSJR, it trades peak efficiency for integrated battery monitoring and sub-microamp shutdown, making it preferable in cost-sensitive, battery-life-critical portable designs.
Availability
MAX710C/D is available at Aetrix Electronics and suitable for digital cameras, single-cell lithium-powered portables, and 2–4-cell alkaline hand-held equipment requiring stable component supply across extended production lifecycles.
Supply support for MAX710C/D 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 solutions for industrial, automotive, and consumer markets.
The MAX710/MAX711 product line was designed specifically for battery-powered portable electronics needing reliable, compact, and efficient step-up/down conversion without external power switches or complex compensation networks.
FAQ
What output voltages does the MAX710C/D support, and how are they selected?
The MAX710C/D provides fixed 3.3V or 5V output. Selection is made by the logic level on the 3/5 pin: connect to GND for 5V output, or to OUT for 3.3V output. No external resistors or programming are required. This hardware-selectable configuration ensures deterministic behavior across temperature and voltage ranges, and is fully supported in the MAX710C/D datasheet's Electrical Characteristics table under "Output Voltage (MAX710)".
How does the N/E pin affect MAX710C/D performance in battery-powered applications?
The N/E pin configures the MAX710C/D for either high-efficiency or low-noise operation. When tied to GND, the LDO operates as a switch during boost, maximizing efficiency (up to 85%) but offering minimal ripple rejection. When tied to PS, the LDO maintains ~0.5V headroom (VFV) for superior noise suppression at ~10% lower efficiency. This choice directly impacts battery runtime and signal integrity in sensitive analog sections of the MAX710C/D application circuit.
What is the minimum input voltage required for MAX710C/D to start up and regulate?
The MAX710C/D typically starts up with a 1V input voltage, as confirmed in the "Design Procedure" section of the datasheet. Full regulation is achieved across its specified input range of +1.8V to +11V. At VIN = 1.8V, it delivers 5V/250mA; at VIN = 3.6V, it delivers 5V/500mA. Startup behavior is validated over temperature and load, supporting deep battery discharge scenarios in MAX710C/D-based designs.
Does the MAX710C/D include protection features such as thermal shutdown or current limiting?
Yes, the MAX710C/D incorporates thermal shutdown at +150°C (with +20°C hysteresis) and programmable peak switch current limiting via the ILIM pin: 0.8A when ILIM = PS, or 1.5A when ILIM = GND. These protections are documented in the Absolute Maximum Ratings and Electrical Characteristics tables. No external components are needed to enable these functions, and they operate autonomously within the MAX710C/D die.
Can the MAX710C/D be used with lithium-ion, alkaline, and AC adapter inputs simultaneously?
Yes - the MAX710C/D's wide +1.8V to +11V input range and step-up/down architecture allow seamless operation across lithium-ion (2.8–4.2V), 2–4-cell alkaline (3–6V), and AC adapter (5–12V DC) sources. Application circuits like Figure 2a and Table 1 in the datasheet demonstrate how the LBO comparator and N/E pin can be configured to auto-switch modes based on input voltage, enabling robust hybrid power systems using the MAX710C/D as the sole regulation stage.
MAX710C/D Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- -
- Packaging:
- Bulk
- Product Status:
- Obsolete
- Function:
- Step-Up, Step-Down
- Output Configuration:
- Positive
- Topology:
- Buck, Boost
- Output Type:
- Fixed
- Number of Outputs:
- 1
- Voltage - Input (Min):
- 1.8V
- Voltage - Input (Max):
- 11V
- Voltage - Output (Min/Fixed):
- 3.3V, 5V
- Voltage - Output (Max):
- -
- Current - Output:
- 1.1A (Switch)
- Frequency - Switching:
- -
- Synchronous Rectifier:
- No
- Operating Temperature:
- 0°C ~ 70°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- -
- Supplier Device Package:
- -
MAX710C/D FAQ
1.How can I place an order for MAX710C/D through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX710C/D 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 MAX710C/D reliable?
The price and inventory of MAX710C/D are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX710C/D is usually 5 days.
3.What payment methods are accepted for MAX710C/D?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX710C/D transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX710C/D?
MAX710C/D orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX710C/D 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 MAX710C/D?
For technical support, including MAX710C/D datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX710C/D requirements.
6.How does Aetrix verify that MAX710C/D is sourced from the original manufacturer or authorized distributors?
All MAX710C/D 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 MAX710C/D meets industry standards.
7.What is the process for return or replacement of MAX710C/D?
All MAX710C/D units undergo pre-shipment inspection (PSI). If there is an issue with MAX710C/D, 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 MAX710C/D part is unused and in its original packaging.
Return procedure for MAX710C/D:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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