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Analog Devices Inc./Maxim Integrated MAX710ESE+
- Part No.:
- MAX710ESE+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 16-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
MAX710ESE+.pdf
- Description:
- IC REG BUCK BOOST 3.3V/5V 16SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:336
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Product details
Overview
MAX710ESE+ from Maxim Integrated is a 3.3V/5V fixed-output, step-up/down DC-DC converter IC integrating an N-channel boost switch and P-channel LDO in a single 16-pin narrow SO package. It operates from +1.8V to +11V input, delivers up to 500mA at 5V (VIN = 3.6V), achieves 85% typical efficiency in boost mode, and supports shutdown (0.2µA IQ) and standby (7µA IQ) modes for battery-powered portable equipment.
For engineers reviewing the MAX710ESE+ datasheet, MAX710ESE+ pinout, MAX710ESE+ application, or MAX710ESE+ equivalent, key selection considerations include its dual-mode operation (high-efficiency vs. low-noise via N/E pin), preset 3.3V/5V output selection (3/5 pin), integrated low-battery comparator (LBI+/LBI-/LBO), and compatibility with single-cell Li+, multi-cell alkaline, and AC adapter hybrid power systems.
Technical Context
The MAX710ESE+ combines a pulse-frequency-modulated (PFM) boost converter with a linear regulator sharing a precision 1.28V reference. Its N-channel MOSFET switch uses constant 1µs off-time and variable on-time control, while the P-channel LDO pass element provides regulated output with VFV ≈ 0.5V headroom in low-noise mode.
Operating configuration is determined by the N/E pin: when low, the LDO acts as a 0.7Ω PFET switch for maximum boost efficiency (≤7V VIN); when high, it maintains headroom for ripple rejection-reducing efficiency by ~10% but enabling full 11V input support. ILIM selects peak current limit (0.8A or 1.5A), and SHDN fully disconnects input from output.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | +1.8V to +11V - supports single-cell Li+ (2.7–4.2V), 2–4-cell alkaline (2.4–6.0V), and AC adapter inputs |
| Output Voltage | Preset 3.3V or 5V - selected by tying 3/5 pin to GND (5V) or PS (3.3V); no external feedback resistors required |
| Max Output Current | 500mA at 5V with VIN = 3.6V - sufficient for digital cameras, portable instrumentation, and microcontroller subsystems |
| Efficiency (Typ) | 85% at 5V/250mA with VIN = 1.8V - enables extended runtime in low-voltage battery applications |
| Quiescent Current | 7µA in standby, 0.2µA in shutdown - minimizes battery drain during sleep or off states |
| Shutdown Isolation | Active pull-down of OUT to GND - ensures true load disconnection and zero hold-up current |
| Low-Battery Detection | Integrated comparator with 50mV hysteresis - configurable threshold using external resistors on LBI+/LBI− pins |
Pinout & Package
MAX710ESE+ is housed in a 16-pin narrow SOIC (SO) package with 1.27mm pitch, JEDEC MS-012AC compliant, and rated for −40°C to +85°C operation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| LX (Pins 1, 16) | Drain of internal N-channel MOSFET | Switch node connecting to external inductor; requires low-inductance layout to minimize switching noise |
| PGND (Pins 2, 15) | Power ground return for boost switch | Must be connected to low-impedance ground plane separate from analog ground to prevent noise coupling |
| SHDN (Pin 4) | Global shutdown control input | Logic-low disables entire IC and actively pulls OUT to GND; logic-high enables normal operation |
| ILIM (Pin 3) | Peak current limit select | GND = 1.5A limit (higher output current), PS = 0.8A limit (enables smaller inductors for space-constrained designs) |
| STBY (Pin 5) | Standby mode enable | GND = disables boost converter only; LDO remains active at 7µA IQ for always-on bias rails |
| N/E (Pin 7) | Noise/Efficiency mode select | GND = high-efficiency (LDO acts as switch, ≤7V VIN); PS = low-noise (LDO adds 0.5V headroom, full 11V VIN) |
| 3/5 (Pin 6) | Output voltage select | GND = 5V output; PS = 3.3V output - eliminates need for external feedback network |
| LBO (Pin 8) | Low-battery comparator open-drain output | Sinks current when LBI+ < LBI−; used to signal battery depletion or trigger system-level power management |
| LBI− (Pin 10), LBI+ (Pin 11) | Inverting/non-inverting inputs of low-battery comparator | LBI− typically tied to REF (1.28V); LBI+ connected to voltage divider from VIN for programmable threshold |
| PS (Pin 12) | Internal power supply rail | Derived from boosted LX output; powers internal circuitry and serves as reference for STBY, N/E, ILIM, and 3/5 inputs |
| REF (Pin 13) | 1.28V precision reference output | Bypassed with 0.1µF capacitor to GND; used for LBI− and optional external feedback in MAX711 variants |
| GND (Pin 14) | Analog ground | Low-impedance connection point for REF bypass and FB (MAX711); must be soldered directly to ground plane |
| OUT (Pin 9) | Regulated output | Delivers final 3.3V or 5V; bypassed with 4.7µF capacitor for LDO stability and 100µF for ripple suppression |
Key Features
| Feature | Design Value |
|---|---|
| Integrated step-up/down architecture | Eliminates need for separate boost + LDO ICs, reducing BOM count and PCB area in portable power rails |
| Configurable noise/efficiency trade-off | N/E pin allows real-time selection between 85% efficiency (N/E = GND) and >60dB PSRR (N/E = PS) without hardware change |
| Zero external FET requirement | On-chip N-channel switch and P-channel pass transistor remove gate-drive complexity and external component cost |
| True load disconnection in shutdown | SHDN assertion pulls OUT to GND and isolates VIN, enabling safe hot-swap and zero-load battery leakage |
| Programmable low-battery detection | LBI+/LBI− inputs support user-defined thresholds (e.g., 2.8V cutoff for Li+ cells) with 50mV hysteresis to prevent chatter |
| Wide input range with bootstrapped operation | Starts from 1V input and regulates across 1.8–11V, supporting mixed-source systems (battery + AC adapter) |
Applications
| Single-Cell Li+ Portable Devices | Digital Cameras |
|---|---|
Use Scenario: Powering image sensor, processor, and LCD backlight from a 3.7V nominal Li+ cell whose voltage sags to 2.8V under load. IC Role / Device Role / Timing Role: Step-up/down converter maintaining stable 3.3V or 5V rail regardless of battery state-of-charge. Use Value: Enables continuous operation down to 2.8V battery voltage without brownout, extending usable battery life by >15% versus fixed-input regulators. |
Use Scenario: Supplying 5V to flash LED driver and 3.3V to CMOS image sensor and SD card interface in compact camera modules. IC Role / Device Role / Timing Role: Dual-rail power source with fast transient response to handle burst current demands during photo capture. Use Value: Delivers 500mA peak at 5V with <50mV ripple (low-noise mode), preventing flash timing jitter and image sensor noise. |
| 2–4-Cell Alkaline Handheld Equipment | Battery + AC Adapter Hybrid Systems |
Use Scenario: Powering handheld test meters or barcode scanners using 3× or 4× AA alkaline cells (4.5–6.0V fresh, down to 3.0V depleted). IC Role / Device Role / Timing Role: Regulating 3.3V/5V output across wide input swing while minimizing no-load current drain. Use Value: Achieves 200µA no-load IQ at 4V input, doubling shelf life versus legacy discrete solutions. |
Use Scenario: Seamless transition between battery backup and wall adapter in portable medical monitors or POS terminals. IC Role / Device Role / Timing Role: Auto-selecting power path: boosting from battery when adapter absent; linear-regulating from adapter when present. Use Value: N/E pin controlled by LBO enables automatic mode switching at 6.5V threshold, eliminating external OR-ing diodes or controllers. |
Availability
MAX710ESE+ is available at Aetrix Electronics and suitable for digital cameras, handheld test equipment, and Li+-powered portable instrumentation requiring stable component supply across industrial temperature ranges.
Supply support for MAX710ESE+ 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 and mixed-signal ICs for power, interface, sensing, and RF applications.
The MAX710ESE+ belongs to Maxim's legacy power management portfolio designed specifically for ultra-low-power, multi-source portable electronics where input voltage varies above and below the regulated output.
FAQ
What output voltages does the MAX710ESE+ support, and how are they selected?
The MAX710ESE+ supports fixed 3.3V or 5V outputs. Selection is made by the logic level on the 3/5 pin: tie to GND for 5V output, or to PS (internal supply rail) for 3.3V output. No external resistors or feedback components are needed, simplifying design and improving accuracy over adjustable alternatives like the MAX711ESE+. This makes MAX710ESE+ ideal for cost-sensitive, high-volume portable devices where output voltage is known in advance.
How does the N/E pin affect MAX710ESE+ performance in battery-powered applications?
The N/E pin on the MAX710ESE+ determines whether the device operates in high-efficiency mode (N/E = GND) or low-noise mode (N/E = PS). In high-efficiency mode, the LDO functions as a low-RDS(on) switch during boost, achieving up to 85% efficiency but offering minimal ripple rejection. In low-noise mode, the LDO maintains ~0.5V headroom for superior PSRR (>60dB), critical for noise-sensitive analog circuits-but at ~10% lower efficiency. Engineers select based on system priority: runtime (N/E = GND) or signal integrity (N/E = PS).
Can the MAX710ESE+ operate from a single 1.5V alkaline cell?
No-the MAX710ESE+ has a minimum input voltage of +1.8V per Absolute Maximum Ratings and Electrical Characteristics tables. While it can start up from 1V under specific test conditions (TOC03), guaranteed operation begins at 1.8V. A single 1.5V alkaline cell falls outside specification and will not reliably power the MAX710ESE+. For sub-1.8V sources, consider boost-only converters like the MAX756 or MAX1703, or use two alkaline cells (3.0V nominal) which remain within the +1.8V to +11V operating range throughout discharge.
What is the purpose of the ILIM pin on the MAX710ESE+, and how should it be configured?
The ILIM pin on the MAX710ESE+ selects the peak inductor current limit: connect to GND for 1.5A (suitable for higher output current or larger inductors), or to PS for 0.8A (optimized for smaller, lower-cost inductors in space-constrained designs). Since the MAX710ESE+ delivers up to 500mA at 5V, the 0.8A setting is typically sufficient and enables use of compact 22µH inductors like Coilcraft DO33-08P-223. Exceeding the selected limit causes cycle-by-cycle current limiting, protecting both the IC and external components.
Does the MAX710ESE+ include built-in protection features, and how do they function?
Yes-the MAX710ESE+ integrates thermal shutdown (trip at +150°C, hysteresis +20°C), current limiting (via ILIM-selectable 0.8A/1.5A peak), and output short-circuit protection through its LDO pass element. During overload, the LDO enters current-limit mode rather than shutting down, sustaining regulated output at reduced voltage. The SHDN pin provides full system-level disable with active OUT pull-down, while the LBI+/LBI−/LBO pins implement programmable low-battery detection with 50mV hysteresis-preventing false triggers during transient load dips. These features eliminate need for external protection circuitry.
MAX710ESE+ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- 16-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tube
- Product Status:
- Active
- 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:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-SOIC
MAX710ESE+ FAQ
1.How can I place an order for MAX710ESE+ through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX710ESE+ 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 MAX710ESE+ reliable?
The price and inventory of MAX710ESE+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX710ESE+ is usually 5 days.
3.What payment methods are accepted for MAX710ESE+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX710ESE+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX710ESE+?
MAX710ESE+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX710ESE+ 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 MAX710ESE+?
For technical support, including MAX710ESE+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX710ESE+ requirements.
6.How does Aetrix verify that MAX710ESE+ is sourced from the original manufacturer or authorized distributors?
All MAX710ESE+ 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 MAX710ESE+ meets industry standards.
7.What is the process for return or replacement of MAX710ESE+?
All MAX710ESE+ units undergo pre-shipment inspection (PSI). If there is an issue with MAX710ESE+, 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 MAX710ESE+ part is unused and in its original packaging.
Return procedure for MAX710ESE+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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