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Analog Devices Inc./Maxim Integrated MAX1607ETB+
- Part No.:
- MAX1607ETB+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 10-WFDFN Exposed Pad
- Datasheet:
-
MAX1607ETB+.pdf
- Description:
- IC INTEGRATED CIRCUIT
- Quantity:
- Payment:
- Shipping:
Inventory:2,747
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Product details
Overview
The MAX1607ETB+ from Maxim Integrated is a high-side P-channel MOSFET current-limited power switch designed for USB port protection in portable and embedded systems. It delivers 500mA continuous output current with a tightly regulated 0.7A–1.0A current limit, 125mΩ max RDS(ON), and operates across +2.7V to +5.5V input voltage range - supporting both 3V and 5V USB host applications.
For engineers reviewing the MAX1607ETB+ datasheet, MAX1607ETB+ pinout, MAX1607ETB+ application, or MAX1607ETB+ equivalent, key selection considerations include its 10ms overcurrent blanking, thermal shutdown at +165°C, 1µA standby supply current, and TDFN-EP package compatibility with space-constrained USB hub and docking station designs.
Technical Context
The MAX1607ETB+ implements a precision current-limit control loop using a replica MOSFET and internal 1.24V reference to maintain overload current within 0.7A–1.0A across temperature and supply voltage. Its open-drain OC output asserts low only after sustained current-limit conditions exceed 10ms - excluding momentary hot-swap transients.
It integrates undervoltage lockout (2.4V threshold), foldback short-circuit protection (500mA continuous), and thermal shutdown with automatic recovery. The device is unidirectional: IN must remain higher than OUT, and all IN/OUT pins are internally paralleled for low-impedance power routing.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Current Limit | 0.7A min / 1.0A max - ensures reliable USB 2.0 port compliance without tripping on typical load surges. |
| RDS(ON) | 125mΩ max - limits conduction loss to ≤62.5mW at 500mA, enabling thermally robust operation in TDFN package. |
| OC Blanking Timeout | 10ms ±3ms - suppresses false alarms during capacitive-load hot-swap events and power-up sequencing. |
| Supply Current (Active) | 14µA typ - minimizes battery drain in always-on USB upstream ports of notebook computers. |
| Standby Supply Current | 1µA max - supports ultra-low-power suspend states in USB hubs and docking stations. |
| Input Voltage Range | +2.7V to +5.5V - interoperable with single-cell Li-ion (3.0–3.6V) and 5V USB bus supplies. |
| Thermal Shutdown | +165°C threshold with 20°C hysteresis - enables self-resetting fault recovery under persistent short-circuit conditions. |
Pinout & Package
The MAX1607ETB+ is housed in a 10-pin 3mm × 3mm TDFN-EP package (PKG CODE T1033-1) with exposed paddle (EP) internally connected to GND for enhanced thermal dissipation. All IN and OUT pins are paralleled internally; external PCB layout must tie them together with low-inductance traces and local bypassing.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 3, 9 | IN | P-channel MOSFET source - connect all three pins to input rail and bypass with ≥1µF ceramic capacitor to GND. |
| 2, 4, 8, 10 | OUT | P-channel MOSFET drain - connect all four pins to load and bypass with 0.1µF ceramic capacitor to GND. |
| 5 | EN | Active-low enable - logic low (≤0.8V) turns switch ON; high-impedance when pulled up externally. |
| 7 | OC | Open-drain overcurrent indicator - requires 100kΩ pull-up to IN; asserts low during UVLO, thermal shutdown, or >10ms current limit. |
| 6 | GND | Power ground reference - connect directly to system ground plane; EP pad must be soldered to large GND copper area. |
Key Features
| Feature | Design Value |
|---|---|
| USB-compliant current limiting | Guaranteed 0.7A–1.0A limit meets USB 2.0 port power delivery requirements without external sensing. |
| 10ms fault blanking | Eliminates false OC assertions during hot-plug of capacitive loads (e.g., USB peripherals), improving system reliability. |
| Thermal + short-circuit protection | Combines foldback current limiting (500mA continuous) and +165°C thermal shutdown with auto-recovery cycling. |
| Ultra-low quiescent current | 14µA active / 1µA standby enables multi-week battery life in portable USB host devices. |
| Undervoltage lockout | 2.4V UVLO threshold prevents erratic switching during brown-out conditions in battery-powered systems. |
Applications
| Notebook USB Ports | USB Hubs |
|---|---|
Use Scenario: Power management for downstream USB Type-A ports on ultrabooks and 2-in-1 laptops. IC Role / Device Role / Timing Role: High-side current-limited power switch protecting host controller from overloads and shorts. Use Value: Prevents system reset or port disable during peripheral insertion while maintaining <1µA standby draw. |
Use Scenario: Individual port power control in 4-port desktop USB hubs with per-port current monitoring. IC Role / Device Role / Timing Role: Independent current-limited switch per downstream port, coordinated via OC signals to MCU. Use Value: Enables per-port fault isolation and software-controlled port disable without affecting other ports. |
| Docking Stations | Industrial USB Host Interfaces |
Use Scenario: Power switching for USB peripherals (keyboard, mouse, storage) in enterprise docking stations. IC Role / Device Role / Timing Role: Load-switching element with thermal derating support for extended ambient temperatures. Use Value: Sustains 500mA continuous load at +70°C ambient due to TDFN-EP thermal design and 1481mW power dissipation rating. |
Use Scenario: Robust USB connectivity in factory-floor HMIs and programmable logic controllers with ESD-prone environments. IC Role / Device Role / Timing Role: Fault-tolerant power gate with UL Recognized #E211935 certification and 125mΩ RDS(ON). Use Value: Meets industrial safety standards while delivering stable 5V/500mA to USB-connected sensors and actuators. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar current-limited USB power switch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS2015DB | SO-8 package (8-pin), 1.5A current limit, no OC blanking, 200mΩ RDS(ON) | Larger footprint, higher trip threshold, less transient immunity - suitable where board space allows and hot-swap reliability is secondary. | Select TPS2015DB only if SO-8 layout reuse is required and 10ms blanking is not needed for capacitive loads. |
| MAX1693ETA+ | Same die in 10-pin µMAX® package, identical electrical specs, but no exposed paddle - 471mW power dissipation limit vs. 1481mW for MAX1607ETB+ | Lower thermal performance in high-ambient or high-duty-cycle applications - best for low-power, intermittent-use USB ports. | Choose MAX1693ETA+ only for legacy µMAX® footprint compatibility; prefer MAX1607ETB+ for thermal headroom in compact designs. |
Compared with TPS2015DB and MAX1693ETA+, the MAX1607ETB+ uniquely combines TDFN-EP thermal efficiency, precise 0.7A–1.0A current limiting, and 10ms blanking - making it optimal for space-constrained, high-reliability USB host ports requiring consistent fault immunity and low standby power.
Availability
The MAX1607ETB+ is available at Aetrix Electronics and suitable for notebook computers, USB hubs, and docking stations requiring stable component supply, long-term lifecycle support, and lead-free compliance.
Supply support for MAX1607ETB+ 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, computing, and communications markets.
The MAX1607ETB+ belongs to Maxim's USB power-distribution switch product line, engineered specifically for fault-tolerant, low-quiescent-current USB port protection in portable and embedded host systems.
FAQ
What is the maximum continuous output current supported by the MAX1607ETB+?
The MAX1607ETB+ supports 500mA continuous output current under normal operating conditions. This value is derived from its guaranteed 0.7A–1.0A current-limit window and thermal design margin in the TDFN-EP package. At full 1.0A limit, power dissipation reaches ~125mW (1.0A² × 125mΩ), remaining within the 1481mW package rating at +70°C ambient. The 500mA rating ensures safe long-term operation with margin for ambient temperature rise and PCB thermal resistance.
Does the MAX1607ETB+ provide reverse-current blocking?
No, the MAX1607ETB+ does not provide reverse-current blocking. As a P-channel high-side switch, it conducts only from IN to OUT and requires VIN > VOUT to operate. Reverse current flow (OUT to IN) is inherently blocked by the MOSFET's body diode orientation, but the device lacks active reverse-current protection circuitry. External diodes or dedicated reverse-blocking ICs are required if bidirectional isolation is needed in the application.
How does the OC output behave during power-up of the MAX1607ETB+?
The OC output of the MAX1607ETB+ remains high-impedance (not asserted) during power-up, even if the device enters current limit momentarily. This behavior is enforced by the integrated 10ms overcurrent blanking timer, which prevents OC assertion until a current-limit condition persists beyond 10ms. As confirmed in the datasheet, "No Overcurrent (OC) Signal During Power-Up" is a guaranteed feature - eliminating spurious host interrupts during system initialization.
Can the MAX1607ETB+ be used with a 3.3V input supply?
Yes, the MAX1607ETB+ is fully specified for operation from +2.7V to +5.5V, including 3.3V nominal supplies. At 3.3V input, its RDS(ON) increases slightly (typical 150mΩ vs. 125mΩ at 5V), but remains within the 150mΩ max limit across temperature. The 2.4V undervoltage lockout threshold ensures stable operation down to 3.3V, and the 14µA quiescent current is maintained - making it ideal for single-cell Li-ion powered USB hosts.
What is the purpose of the exposed paddle (EP) in the MAX1607ETB+ TDFN package?
The exposed paddle (EP) in the MAX1607ETB+ TDFN package is internally connected to GND and serves exclusively as a thermal conduction path - not an electrical signal node. Soldering the EP to a large PCB ground plane reduces junction-to-ambient thermal resistance by up to 40°C/W, enabling the device to dissipate 1481mW at +70°C ambient. Maxim specifies that the EP must not be used for electrical connections; doing so risks violating UL recognition #E211935 and compromising thermal performance.
MAX1607ETB+ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package/Case:
- 10-WFDFN Exposed Pad
- Series:
- -
- Packaging:
- Bulk
- Product Status:
- Obsolete
- Switch Type:
- USB Switch
- Number of Outputs:
- 1
- Ratio - Input:Output:
- 1:1
- Output Configuration:
- High Side
- Output Type:
- P-Channel
- Interface:
- On/Off
- Voltage - Load:
- 2.7V ~ 5.5V
- Voltage - Supply (Vcc/Vdd):
- Not Required
- Current - Output (Max):
- 700mA
- Rds On (Typ):
- 60mOhm
- Input Type:
- Non-Inverting
- Features:
- -
- Fault Protection:
- Current Limiting (Fixed), Over Temperature, UVLO
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 10-TDFN (3x3)
MAX1607ETB+ FAQ
1.How can I place an order for MAX1607ETB+ through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX1607ETB+ 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 MAX1607ETB+ reliable?
The price and inventory of MAX1607ETB+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX1607ETB+ is usually 5 days.
3.What payment methods are accepted for MAX1607ETB+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX1607ETB+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX1607ETB+?
MAX1607ETB+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX1607ETB+ 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 MAX1607ETB+?
For technical support, including MAX1607ETB+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX1607ETB+ requirements.
6.How does Aetrix verify that MAX1607ETB+ is sourced from the original manufacturer or authorized distributors?
All MAX1607ETB+ 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 MAX1607ETB+ meets industry standards.
7.What is the process for return or replacement of MAX1607ETB+?
All MAX1607ETB+ units undergo pre-shipment inspection (PSI). If there is an issue with MAX1607ETB+, 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 MAX1607ETB+ part is unused and in its original packaging.
Return procedure for MAX1607ETB+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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