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Analog Devices Inc./Maxim Integrated MAX607ESA+
- Part No.:
- MAX607ESA+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Special Purpose Regulators
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
MAX607ESA+.pdf
- Description:
- IC REG FLASH MEM 1OUT 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:3,198
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Product details
Overview
The MAX607ESA+ from Maxim Integrated is a CMOS step-up DC-DC converter optimized for PCMCIA and flash memory card power supplies, operating from 3V to 5.5V input and delivering ±4% accurate 5V or 12V outputs (or adjustable up to 12.5V), with up to 90mA output current at 12V and 180mA at 5V, switching at 500kHz to meet Type 2/3 card height constraints.
For engineers reviewing the MAX607ESA+ datasheet, MAX607ESA+ pinout, MAX607ESA+ application, or MAX607ESA+ equivalent, this page delivers verified electrical parameters, SO-package terminal mapping, soft-start and shutdown behavior, feedback-based output configuration, and real-world trade-offs versus the MAX606 variant for compact portable power design.
Technical Context
The MAX607ESA+ implements a current-limited pulse-frequency modulation (PFM) control scheme that dynamically adjusts on-time (tON = K/VIN, K = 6 µs·V typical) and off-time based on input/output voltage differentials, enabling high efficiency across wide load and input ranges while maintaining low no-load quiescent current (500 µA typical). It integrates an internal 1Ω n-channel power MOSFET switch and 2V reference, with programmable output via FB pin connection.
Unlike fixed-frequency PWM converters, it generates variable-frequency switching noise bounded by ILIM × ESR, supports user-controlled soft-start via external capacitor on SS pin, and features undervoltage lockout (2.8V threshold) and logic-controlled shutdown (1 µA max input current, 0.01 µA shutdown quiescent current).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 3.0V to 5.5V - supports single-cell Li-ion, 3.3V/5V system rails without pre-regulation |
| Output Voltage Options | Fixed 5V (FB = IN), fixed 12V (FB = GND), or adjustable 3.0V–12.5V (FB = resistive divider) - enables flexible rail generation from one IC |
| Max Output Current | 180mA @ 5V / 90mA @ 12V - sufficient for PCMCIA slot programming and flash memory write cycles |
| Switching Frequency | 500kHz - balances compact inductor size (10µH) and board area (0.16in² circuit footprint) vs. height (2.5mm) |
| Feedback Reference Voltage | 2.00V ±0.04V - sets output accuracy via external resistor ratio; FB input bias ≤200nA enables high-value dividers |
| Shutdown Quiescent Current | 0.01µA - preserves battery life in handheld devices during sleep mode |
| Supply Current (No Load) | 500µA typical - lower than MAX606's 700µA, improving light-load efficiency in intermittent-use applications |
Pinout & Package
MAX607ESA+ is housed in an 8-pin SO (Small Outline) package, 3.9mm × 4.9mm × 1.75mm, RoHS-compliant, with gull-wing leads and standard JEDEC MS-012AC footprint.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 PGND | Power Ground | Return path for internal n-channel MOSFET source; must be low-inductance connection to minimize switching noise |
| 2 FB | Feedback Input | Configures output voltage: tie to IN for 5V, GND for 12V, or external divider for adjustable mode (0.1V < VFB < VIN−0.1V) |
| 3 SHDN | Shutdown Control | Active-low logic input; connect to GND to disable output (0.01µA IQ), to IN for normal operation |
| 4 IN | Input Supply | Main power input (3V–5.5V); also powers internal circuitry and serves as reference for FB=IN configuration |
| 5 GND | Analog Ground | Reference for error amplifier and internal bandgap; separate from PGND to reduce noise coupling |
| 6 SS | Soft-Start Input | Connect external capacitor to control inrush current ramp rate; charged by 2V ref through 45kΩ internal resistor |
| 7 OUT | Regulated Output | High-side switched output node; must connect directly to load and output filter capacitor |
| 8 LX | Switch Node | Drain of internal power MOSFET; connects to inductor and Schottky diode anode in boost topology |
Key Features
| Feature | Design Value |
|---|---|
| Low-profile power solution | Fits Type 2/3 PCMCIA cards with 2.5mm height constraint using 10µH inductor and ceramic capacitors |
| User-programmable output | Single-pin FB selection enables 5V, 12V, or adjustable output without external op-amps or DACs |
| Ultra-low shutdown current | 0.01µA ensures multi-year battery life in always-on standby applications like memory card readers |
| Integrated soft-start control | SS pin allows precise inrush current limiting via capacitor value-no external timer IC required |
| High-efficiency PFM architecture | Maintains >80% efficiency from 1mA to full load across VIN/VOUT combinations, unlike fixed-frequency alternatives |
Applications
| PCMCIA Card Power Supply | Flash Memory Programming |
|---|---|
Use Scenario: Providing regulated 5V or 12V to Type 2/3 PCMCIA slots in laptops or industrial controllers where board height is constrained to ≤2.5mm. IC Role / Device Role / Timing Role: Primary step-up regulator generating clean, stable output from 3.3V/5V host bus; manages transient load steps during card enumeration and data transfer. Use Value: Enables full compliance with PCMCIA mechanical standards while eliminating need for discrete FET + controller solutions. |
Use Scenario: Supplying high-current 12V pulses during flash erase/write cycles in embedded memory modules or digital cameras. IC Role / Device Role / Timing Role: High-efficiency boost converter delivering up to 90mA at 12V with fast line/load transient response (<100µs settling). Use Value: Reduces thermal stress and extends battery life compared to linear regulators or less-efficient switching alternatives. |
| Digital Camera Backlight Driver | Hand-Held Test Equipment |
Use Scenario: Generating 5V–12V for white LED backlight arrays in compact digital cameras where PCB area is limited to 0.16in². IC Role / Device Role / Timing Role: Constant-voltage source with soft-start to prevent LED current overshoot during power-up. Use Value: Eliminates need for external current-sense resistors or PWM dimming controllers due to inherent current-limit protection. |
Use Scenario: Powering isolated analog front-ends or microcontroller peripherals in portable test gear requiring stable 5V from a 3.7V Li-ion cell. IC Role / Device Role / Timing Role: Compact, low-noise DC-DC supply with shutdown mode activated by host MCU GPIO. Use Value: Achieves 500µA no-load IQ and 0.01µA shutdown IQ-critical for >100-hour battery runtime between calibrations. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar step-up DC-DC converter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX606ESA+ | Higher 1MHz switching frequency, 1.35mm max height, 180mA @ 5V but only 120mA @ 12V; uses 5µH inductor | Better suited for ultra-thin Type 1 cards and space-constrained 5V-only designs | Select MAX606ESA+ when board height <1.35mm is mandatory and 12V load ≤120mA |
| TPS61040DRVR | Fixed 5V output only, 1.2MHz switching, 28V max VOUT, 0.4µA shutdown IQ, but requires external compensation | Optimized for low-IQ 5V point-of-load; lacks 12V/adjustable capability and integrated soft-start | Choose TPS61040DRVR only for cost-sensitive 5V-only systems where FB flexibility and soft-start are not required |
Compared with MAX606ESA+, the MAX607ESA+ trades higher height (2.5mm vs. 1.35mm) for lower no-load current and larger inductor tolerance, while versus TPS61040DRVR it provides broader output configurability and integrated soft-start at the cost of slightly higher shutdown IQ.
Availability
MAX607ESA+ is available at Aetrix Electronics and suitable for PCMCIA card power supplies, flash memory programming circuits, digital camera backlight drivers, hand-held test equipment, and portable medical monitors requiring stable component supply with guaranteed long-term sourcing.
Supply support for MAX607ESA+ 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 precision analog, mixed-signal, and power management ICs for industrial, automotive, and communications markets.
The MAX606/MAX607 product line was designed specifically for ultra-compact, low-height DC-DC conversion in removable memory and peripheral cards-prioritizing mechanical fit, efficiency at light loads, and pin-strapped output flexibility over generic buck/boost versatility.
FAQ
What output voltages does the MAX607ESA+ support, and how are they selected?
The MAX607ESA+ supports three output configurations: fixed 5V (connect FB pin to IN), fixed 12V (connect FB to GND), or adjustable 3.0V–12.5V (connect FB to resistive divider between OUT and GND). The internal 2.00V reference and ≤200nA FB input bias enable precise, stable regulation across all modes without external components beyond the divider resistors.
How does the MAX607ESA+ differ from the MAX606ESA+ in practical design terms?
The MAX607ESA+ operates at 500kHz (vs. 1MHz for MAX606ESA+), uses a 10µH inductor (vs. 5µH), fits Type 2/3 cards (2.5mm height), and delivers 90mA at 12V (vs. 120mA for MAX606ESA+). Its no-load supply current is 500µA (lower than MAX606ESA+'s 700µA), making it preferable for battery-powered applications where light-load efficiency matters more than minimum height.
Can the MAX607ESA+ be used without a soft-start capacitor?
Yes-the MAX607ESA+ functions without an external soft-start capacitor on the SS pin. Omitting it enables fastest possible startup (e.g., for flash memory programming where minimal access delay is critical), though inrush current will be higher. When used, the SS capacitor value directly controls the current-limit ramp rate per the Start-Up Delay vs. SS Capacitor curve in the datasheet.
What is the maximum output current the MAX607ESA+ can deliver at 12V, and under what conditions?
The MAX607ESA+ delivers up to 90mA at 12V output when VIN = 4.5V–5.5V, FB = GND, and TA = –40°C to +85°C. This is confirmed in the Electrical Characteristics table under "Output Voltage" conditions for MAX607. Performance degrades at lower input voltages or elevated temperatures due to reduced duty cycle and thermal limits.
Does the MAX607ESA+ require external components beyond inductor, diode, and capacitors?
No-the MAX607ESA+ integrates the power MOSFET, reference, error amplifier, timing circuit, and shutdown logic. Only five external components are required: input bypass capacitor (0.1µF), output filter (2×0.68µF ceramic), 10µH inductor, Schottky diode (e.g., MBR0520L), and optional soft-start capacitor. No compensation network or feedback op-amp is needed.
MAX607ESA+ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tube
- Product Status:
- Active
- Applications:
- Converter, Flash Memory PCMCIA Cards
- Voltage - Input:
- 3V ~ 5.5V
- Number of Outputs:
- 1
- Voltage - Output:
- 5V, 12V, 3V ~ 12.5V
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
MAX607ESA+ FAQ
1.How can I place an order for MAX607ESA+ through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX607ESA+ 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 MAX607ESA+ reliable?
The price and inventory of MAX607ESA+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX607ESA+ is usually 5 days.
3.What payment methods are accepted for MAX607ESA+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX607ESA+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX607ESA+?
MAX607ESA+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX607ESA+ 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 MAX607ESA+?
For technical support, including MAX607ESA+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX607ESA+ requirements.
6.How does Aetrix verify that MAX607ESA+ is sourced from the original manufacturer or authorized distributors?
All MAX607ESA+ 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 MAX607ESA+ meets industry standards.
7.What is the process for return or replacement of MAX607ESA+?
All MAX607ESA+ units undergo pre-shipment inspection (PSI). If there is an issue with MAX607ESA+, 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 MAX607ESA+ part is unused and in its original packaging.
Return procedure for MAX607ESA+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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