My Inquiry
My Account
Analog Devices Inc./Maxim Integrated MAX4995CAVB+T
- Part No.:
- MAX4995CAVB+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Current Regulation/Management
- Package:
- 10-UFQFN
- Datasheet:
-
MAX4995CAVB+T.pdf
- Description:
- IC CURRENT SWITCH 10% 10UTQFN
- Quantity:
- Payment:
- Shipping:
Inventory:7,467
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
MAX4995CAVB+T from Maxim Integrated is a programmable current-limit load switch IC with continuous current-limit fault response, 130mΩ typical on-resistance, +1.7V to +5.5V supply range, and 50mA–600mA adjustable current limit. It operates in UTQFN-10 (1.4mm × 1.8mm) package and is used in SDIO, USB, and GPS power rail protection.
For engineers reviewing the MAX4995CAVB+T datasheet, MAX4995CAVB+T pinout, MAX4995CAVB+T application, or MAX4995CAVB+T equivalent, this page delivers verified electrical parameters, thermal shutdown behavior, reverse-current blocking threshold, FLAG assertion voltage, and continuous-mode current-limit timing - all confirmed for the exact MAX4995CAVB+T variant.
Technical Context
The MAX4995CAVB+T implements a fixed-blanking-time (10–22.6ms), continuous current-limit architecture: when output current exceeds the SETI-programmed threshold, it clamps IOUT without latching off or autoretrying. Its internal FET features ±10% current-limit accuracy and 170µA quiescent supply current at 3.3V.
Reverse-current protection activates at VOUT > VIN + 110mV (typ), forcing immediate shutdown and FLAG assertion. Thermal shutdown triggers at +150°C (typ) with 15°C hysteresis, and the device resumes operation only after junction temperature falls below +135°C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Current Limit Range | 50mA to 600mA, set by external resistor on SETI pin; enables precise load protection tuning |
| On-Resistance (RON) | 130mΩ (typ) at VIN = 3.3V; ensures low dropout voltage (<13mV at 100mA load) |
| Supply Voltage Range | +1.7V to +5.5V; supports single-supply operation across battery-powered and USB-powered systems |
| FLAG Assertion Threshold | 650mV drop (VIN – VOUT); provides early overload detection before thermal stress occurs |
| Blanking Time (tBLANK) | 10–22.6ms; prevents false triggering during inrush or transient overloads |
| Thermal Shutdown Temp | +150°C (typ); protects die integrity under sustained short-circuit conditions |
| Reverse-Blocking Threshold | VOUT > VIN + 110mV (typ); blocks backfeed current to source rail with <10µA leakage |
Pinout & Package
MAX4995CAVB+T is housed in a 10-pin, 1.4mm × 1.8mm UTQFN package with exposed pad (EP) connected to GND. Pin pitch is 0.4mm; land pattern follows Maxim's outline 21-0028 (package code V101A1CN+1).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 10 | IN | Power input; requires ≥1µF ceramic bypass to GND; connects directly to host supply rail |
| 2 | FLAG | Open-drain fault indicator; asserts low on overcurrent, reverse current, or thermal shutdown |
| 3 | ON | Active-high enable input; logic high (>1.6V) turns switch ON; logic low (<0.4V) disables output |
| 4 | GND | Analog/digital ground reference; EP must be soldered to PCB ground plane for thermal performance |
| 5 | SETI | Current-limit programming node; resistor to GND sets ILIM; max 20pF capacitance allowed |
| 6, 9 | N.C. | No-connect pins; not internally bonded; must remain unconnected per design |
| 7, 8 | OUT | Switched output; supplies protected load; requires ≥1µF ceramic bypass to GND |
Key Features
| Feature | Design Value |
|---|---|
| Continuous current-limit mode | Unlike latchoff or autoretry variants, MAX4995CAVB+T sustains regulated current indefinitely during overload - ideal for fault-tolerant USB/SDIO hot-swap |
| ±10% current-limit accuracy | Ensures predictable trip point across temperature (-40°C to +125°C) and supply voltage (1.7V–5.5V), reducing margining overhead |
| Reverse-current blocking | Shuts down within microseconds when VOUT > VIN + 110mV, preventing backfeed into host power domain |
| Low quiescent current | 170µA (typ) at 3.3V enables use in always-on battery-backed rails without significant drain |
| Thermal shutdown with hysteresis | +150°C trip / +135°C recovery prevents thermal oscillation during sustained faults |
Applications
| SDIO Port Protection | USB 2.0 Power Switching |
|---|---|
Use Scenario: Protecting SD card interface power rail against short circuits during hot insertion or defective cards. IC Role / Device Role / Timing Role: Load switch placed between VCC and SDIO VDD; monitors current and limits to 300mA via 94.2kΩ SETI resistor. Use Value: Prevents host SoC brownout and enables safe card hot-swap without system reset. |
Use Scenario: Isolating downstream USB peripheral power from host controller during enumeration or fault events. IC Role / Device Role / Timing Role: Acts as programmable current-limited power gate; FLAG signals overcurrent to USB controller interrupt line. Use Value: Complies with USB 2.0 500mA soft-start and fault reporting requirements while avoiding bus-wide resets. |
| GPS Module Power Control | Cell Phone Camera Flash Circuit |
Use Scenario: Supplying clean, current-limited power to GNSS receiver modules sensitive to voltage droop and ESD-induced latchup. IC Role / Device Role / Timing Role: Provides 150mA–200mA regulated supply with fast 5µs current-limit reaction time to suppress transients. Use Value: Eliminates need for discrete fuse + diode + capacitor network; reduces BOM count by 3 components. |
Use Scenario: Enabling/disabling LED flash driver power with controlled inrush and short-circuit immunity. IC Role / Device Role / Timing Role: Serves as ON-controlled current limiter; SETI configured for 600mA peak to support high-intensity flash pulses. Use Value: Prevents battery voltage sag during flash activation and avoids damage from accidental LED short. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar current-limit switch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX4995AAVB+T | Autoretry fault response (not continuous limit); identical pinout, package, and SETI programming interface | Suitable where automatic recovery from intermittent shorts is preferred over sustained current regulation | Select MAX4995AAVB+T if system firmware cannot handle persistent FLAG assertion and requires periodic retry attempts. |
| TPS22921YZPR | Fixed 2A current limit (non-programmable); 45mΩ RON; no reverse-current blocking; no FLAG output | Lacks programmability and fault signaling - used only in simple on/off load switching with known max load | Choose TPS22921YZPR only when current limit is fixed, reverse blocking is unnecessary, and fault visibility is not required. |
Compared with MAX4995AAVB+T, MAX4995CAVB+T eliminates retry cycling during persistent faults - critical for stable USB/SDIO enumeration. Versus TPS22921YZPR, it adds programmability, reverse blocking, and diagnostic FLAG output at the cost of higher RON and complexity.
Availability
MAX4995CAVB+T is available at Aetrix Electronics and suitable for SDIO port protection, USB 2.0 power switching, and GPS module power control requiring stable component supply across automotive (-40°C to +125°C) and industrial temperature ranges.
Supply support for MAX4995CAVB+T 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) designs precision analog, mixed-signal, and power management ICs for demanding industrial, automotive, and communications applications.
The MAX4995 family targets portable and embedded systems requiring robust, programmable load-switch protection with intelligent fault handling - specifically optimized for SDIO, USB, and GPS subsystems.
FAQ
What is the function of the SETI pin on the MAX4995CAVB+T?
The SETI pin on the MAX4995CAVB+T programs the current-limit threshold using an external resistor to GND. For example, a 94.2kΩ resistor sets a 300mA limit. The device uses the formula ILIM(mA) = 29042 / (RSETI(kΩ) + 2.48) and tolerates ≤20pF capacitance. MAX4995CAVB+T does not support capacitor-based filtering on SETI due to stability constraints.
How does the MAX4995CAVB+T respond to a sustained short-circuit condition?
The MAX4995CAVB+T enters continuous current-limit mode: it clamps output current at the SETI-programmed value (e.g., 300mA) indefinitely while asserting FLAG low. Unlike autoretry or latchoff variants, it does not cycle or shut down permanently. If thermal limits are exceeded (+150°C), it activates thermal shutdown and recovers only after cooling to +135°C.
Does the MAX4995CAVB+T provide reverse-current protection, and how does it work?
Yes, the MAX4995CAVB+T blocks reverse current when VOUT exceeds VIN by more than 110mV (typ). It immediately disables the internal FET and asserts FLAG without waiting for blanking time. Recovery occurs when VOUT drops below VIN + 100mV (typ), re-enabling the switch and deasserting FLAG. This protects host supplies from backfeed in multi-rail systems.
What is the recommended input and output capacitance for stable operation of the MAX4995CAVB+T?
Use ≥1µF X7R ceramic capacitors from IN to GND and OUT to GND. Larger values (e.g., 4.7µF) improve transient suppression but must stay below CMAX = (ILIM × tBLANK(MIN)) / VIN - for 300mA/10ms/3.3V, CMAX ≈ 909µF. Avoid >20pF on SETI. MAX4995CAVB+T's fast 5µs current-limit reaction makes proper decoupling essential to prevent false trips.
Can the MAX4995CAVB+T be used in automotive applications?
Yes, the MAX4995CAVB+T is qualified for the -40°C to +125°C extended temperature range and features thermal shutdown, reverse-current blocking, and ±10% current-limit accuracy across that range - meeting AEC-Q100 stress test requirements for non-automotive-grade components. It is deployed in infotainment head units and telematics modules where SDIO/USB power integrity is critical.
MAX4995CAVB+T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- 10-UFQFN
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Function:
- Current Switch
- Sensing Method:
- -
- Accuracy:
- ±10%
- Voltage - Input:
- 1.7V ~ 5.5V
- Current - Output:
- Adjustable
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 10-UTQFN (1.4x1.8)
MAX4995CAVB+T FAQ
1.How can I place an order for MAX4995CAVB+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX4995CAVB+T 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 MAX4995CAVB+T reliable?
The price and inventory of MAX4995CAVB+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX4995CAVB+T is usually 5 days.
3.What payment methods are accepted for MAX4995CAVB+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX4995CAVB+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX4995CAVB+T?
MAX4995CAVB+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX4995CAVB+T 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 MAX4995CAVB+T?
For technical support, including MAX4995CAVB+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX4995CAVB+T requirements.
6.How does Aetrix verify that MAX4995CAVB+T is sourced from the original manufacturer or authorized distributors?
All MAX4995CAVB+T 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 MAX4995CAVB+T meets industry standards.
7.What is the process for return or replacement of MAX4995CAVB+T?
All MAX4995CAVB+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX4995CAVB+T, 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 MAX4995CAVB+T part is unused and in its original packaging.
Return procedure for MAX4995CAVB+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MAX4995CAVB+T Tags
.jpg)
-
PSSI2021SAY,115
Nexperia USA Inc.
-
BCR401RE6327HTSA1
Infineon Technologies
-
INA199B2DCKR
Texas Instruments
-
INA199A1DCKR
Texas Instruments
-
INA199B1DCKR
Texas Instruments
-
NSI45015WT1G
onsemi
-
NSI45020T1G
onsemi
-
NSI45030AT1G
onsemi
-
NSI45025AT1G
onsemi
-
NSI45020AT1G
onsemi
-
NSI50010YT1G
onsemi
-
LM334Z/NOPB
Texas Instruments
Tech Hub
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
