My Inquiry
My Account
Analog Devices Inc./Maxim Integrated MAX4833EUT25BD3
- Part No.:
- MAX4833EUT25BD3
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- SOT-23-6
- Datasheet:
-
MAX4833EUT25BD3.pdf
- Description:
- IC REG LINEAR LDO 100MA
- Quantity:
- Payment:
- Shipping:
Inventory:1,796
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
MAX4833EUT25BD3 from Maxim Integrated is a 100mA, 2.5V fixed-output LDO linear regulator with integrated push-pull RESET output, reverse-current protection, and programmable soft-start. It operates from 2.5V to 5.5V input, delivers ±2% output voltage accuracy over –40°C to +85°C, and features 90µA quiescent current and 0.1µA shutdown current. It is used in USB port power management for fault detection and system reset coordination.
For engineers reviewing the MAX4833EUT25BD3 datasheet, MAX4833EUT25BD3 pinout, MAX4833EUT25BD3 application, or MAX4833EUT25BD3 equivalent, key selection considerations include its 2.5V preset output, 30ms RESET timeout (D2 suffix), SOT23-6 package, shutdown discharge capability, and compatibility with low-noise portable power rails requiring accurate undervoltage monitoring.
Technical Context
The MAX4833EUT25BD3 implements a BiCMOS-based LDO architecture with an internal PMOS pass transistor, precision bandgap reference, and error amplifier. Its RESET function asserts low when VOUT drops below 87.5% of nominal (2.1875V), with a guaranteed 30ms timeout period after fault clearance.
It integrates active soft-start control via external capacitor on SS pin, reverse-current blocking at IN when VOUT > VIN, thermal shutdown at +165°C with 15°C hysteresis, and shutdown discharge through a 900Ω internal resistor - all confirmed for this specific variant in the datasheet's Electrical Characteristics and Pin Description sections.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 2.5V ±2% over –40°C to +85°C; enables direct powering of 2.5V logic without external feedback. |
| Max Output Current | 100mA guaranteed; supports moderate-load peripherals like USB transceivers or SDIO interface circuitry. |
| Input Voltage Range | 2.5V to 5.5V; compatible with single-cell Li-ion, 3.3V rail, or 5V USB bus inputs. |
| Quiescent Current | 90µA typical at full load; minimizes standby power in battery-powered systems. |
| DROP OUT VOLTAGE | 130mV max at 100mA; ensures regulation down to VIN = 2.63V for 2.5V output. |
| RESET Timeout | 30ms (D2 suffix); prevents spurious resets during brief output dips while ensuring reliable system recovery. |
| Shutdown Current | 0.1µA max; enables ultra-low-power sleep modes in portable devices. |
Pinout & Package
MAX4833EUT25BD3 is housed in a 6-pin SOT23-6 package (JEDEC MO-178AA) with exposed pad connected to GND for thermal performance. Pin 1 = IN, Pin 2 = GND, Pin 3 = SHDN, Pin 4 = RESET, Pin 5 = SS, Pin 6 = OUT.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (IN) | Power Input | Bypassed with 0.1µF ceramic capacitor; must be ≥2.5V and ≤5.5V for operation. |
| 2 (GND) | Ground Reference | Common return for IN, OUT, SHDN, RESET, and SS; connects internally to exposed pad. |
| 3 (SHDN) | Active-Low Enable | Pulled high to enable; pulled low to shut down regulator and activate OUT discharge. |
| 4 (RESET) | Push-Pull Reset Output | Asserts low during VOUT undervoltage, VIN UVLO, thermal shutdown, or SHDN assertion; holds low for 30ms post-fault. |
| 5 (SS) | Soft-Start Control | Connects to GND via capacitor (e.g., 0.01µF → 10ms tSS) to limit inrush current during startup. |
| 6 (OUT) | Regulated Output | Delivers 2.5V ±2%; requires ≥3.3µF ceramic capacitor with ESR <0.2Ω for stability. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated RESET output | Push-pull configuration eliminates need for external pull-up; directly interfaces with µC reset inputs. |
| Shutdown output discharge | 900Ω internal resistor discharges OUT during SHDN, preventing floating or back-powering of downstream circuitry. |
| Reverse-current protection | Blocks current flow from OUT to IN when VOUT > VIN, protecting upstream sources such as batteries or shared rails. |
| Programmable soft-start | External CSS capacitor sets rise time (1ms minimum); avoids false RESET assertions during power-up. |
| Thermal shutdown with hysteresis | +165°C trip with 15°C hysteresis enables self-recovery under sustained overload without latch-off. |
Applications
| USB Port Power Management | SDIO Interface Regulation |
|---|---|
Use Scenario: Regulating and monitoring power to USB peripheral ports in notebooks or docking stations. IC Role / Device Role / Timing Role: LDO provides clean 2.5V supply; RESET signals host µC upon undervoltage or overcurrent events. Use Value: Prevents data corruption by triggering controlled reset before VBUS collapse or cable disconnect. | Use Scenario: Supplying stable voltage to SDIO card slots in handheld devices with hot-plug capability. IC Role / Device Role / Timing Role: Delivers regulated 2.5V with fast transient response; RESET notifies controller of supply failure before card initialization fails. Use Value: Enables safe card ejection and firmware-level error handling during brownout conditions. |
| Notebook System Rail Monitoring | GPS Module Power Sequencing |
Use Scenario: Providing auxiliary 2.5V rail for baseband or RF subsystems in ultraportables. IC Role / Device Role / Timing Role: Acts as monitored LDO with RESET tied to system supervisor IC for coordinated power sequencing. Use Value: Ensures GPS or cellular modules only initialize after stable 2.5V is confirmed, reducing boot failures. | Use Scenario: Powering GPS receiver ICs requiring precise 2.5V and fault-aware reset signaling. IC Role / Device Role / Timing Role: Supplies regulated voltage while RESET output triggers GPS firmware recovery on antenna disconnect or low-signal brownout. Use Value: Maintains position lock integrity by enabling rapid reacquisition after brief supply disturbances. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LDO-with-RESET applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX4833ETT25BD3 | TDFN-6 package (3×3mm) vs. SOT23-6; identical electrical specs and RESET timing. | Better thermal performance and higher power density; requires PCB layout change for exposed pad grounding. | Select for space-constrained or thermally demanding designs where footprint reduction is critical. |
| MAX4835EUT25BD3 | 250mA output current rating; same 2.5V output, RESET function, and D2 timeout; pin-compatible SOT23-6. | Supports higher-current loads (e.g., multi-lane USB hubs); no change to schematic or layout required. | Select when future load growth or margin expansion is anticipated without redesign. |
Compared with MAX4833EUT25BD3, the TDFN variant offers superior thermal dissipation in compact layouts, while the MAX4835EUT25BD3 provides 2.5× higher current capacity with full pin and function compatibility - both retain identical RESET behavior and soft-start programmability.
Availability
MAX4833EUT25BD3 is available at Aetrix Electronics and suitable for USB port power management, SDIO interface regulation, and notebook system rail monitoring requiring stable component supply, long-term lifecycle support, and RoHS-compliant sourcing.
Supply support for MAX4833EUT25BD3 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 industrial, computing, and portable applications.
The MAX4832/MAX4833 product line targets space-constrained, battery-sensitive systems requiring accurate current-limited LDOs with intelligent fault signaling - specifically optimized for USB, SDIO, and mobile peripheral power domains.
FAQ
What is the exact RESET threshold voltage for MAX4833EUT25BD3?
The RESET threshold for MAX4833EUT25BD3 is 87.5% of its nominal 2.5V output, i.e., 2.1875V. The datasheet specifies VRESET as 0.85×VOUT to 0.90×VOUT, with typical at 0.875×VOUT. This threshold is factory-trimmed and guaranteed across temperature; MAX4833EUT25BD3 asserts RESET low whenever VOUT falls below this level, holding it low for the full 30ms timeout period.
Does MAX4833EUT25BD3 provide output discharge during shutdown?
Yes, MAX4833EUT25BD3 includes internal shutdown output discharge via a 900Ω resistor between OUT and GND. When SHDN is pulled low, the pass transistor turns off and the 900Ω path actively discharges the output capacitor, preventing back-powering of upstream circuitry or floating nodes. This feature is absent in the FLAG-version MAX4832 and is explicitly confirmed for MAX4833EUT25BD3 in the datasheet's "Shutdown Discharge (MAX4833)" section.
What capacitor value on the SS pin yields the 30ms RESET timeout specified in MAX4833EUT25BD3?
The SS pin capacitor does not affect the RESET timeout period. In MAX4833EUT25BD3, the "D2" suffix denotes a fixed 30ms RESET timeout, implemented internally and independent of the soft-start capacitor. The SS pin controls only the output voltage ramp time (tSS = CSS in nF, per datasheet equation); for example, a 0.01µF (10nF) capacitor gives ~10ms soft-start. The 30ms RESET duration is hard-coded and unaffected by external components.
Can MAX4833EUT25BD3 operate with an input voltage lower than 2.5V?
No, MAX4833EUT25BD3 requires a minimum input voltage of 2.5V as specified in its Absolute Maximum Ratings and Electrical Characteristics. Operation below 2.5V violates the guaranteed operating range and may cause UVLO activation (VUVLO = 2.00–2.25V) or unregulated output. For sub-2.5V inputs, alternative regulators such as the MAX8867 series would be required; MAX4833EUT25BD3 is not rated or characterized for such conditions.
Is MAX4833EUT25BD3 pin-compatible with other members of the MAX483x family?
Yes, MAX4833EUT25BD3 shares identical pinout and footprint with all MAX4832/MAX4833 variants in SOT23-6 packaging, including MAX4832EUT25C, MAX4833EUT33BD2, and MAX4835EUT25BD3. All use Pin 1=IN, Pin 2=GND, Pin 3=SHDN, Pin 4=RESET/FLAG, Pin 5=SS, Pin 6=OUT. This allows direct substitution within the same package type, though functional differences (e.g., FLAG vs. RESET, current rating) must be verified per application requirements.
MAX4833EUT25BD3 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- SOT-23-6
- Packaging:
- Bulk
- Product Status:
- Active
- Output Configuration:
- Positive
- Output Type:
- Fixed
- Number of Regulators:
- 1
- Voltage - Input (Max):
- 5.5V
- Voltage - Output (Min/Fixed):
- 2.5V
- Voltage - Output (Max):
- -
- Voltage Dropout (Max):
- 0.13V @ 100mA
- Current - Output:
- 100mA
- Current - Quiescent (Iq):
- 150 µA
- Current - Supply (Max):
- -
- PSRR:
- -
- Control Features:
- Enable, Reset, Soft Start
- Protection Features:
- Over Current, Over Temperature, Reverse Current, Under Voltage Lockout (UVLO)
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-23-6
MAX4833EUT25BD3 FAQ
1.How can I place an order for MAX4833EUT25BD3 through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX4833EUT25BD3 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 MAX4833EUT25BD3 reliable?
The price and inventory of MAX4833EUT25BD3 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX4833EUT25BD3 is usually 5 days.
3.What payment methods are accepted for MAX4833EUT25BD3?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX4833EUT25BD3 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX4833EUT25BD3?
MAX4833EUT25BD3 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX4833EUT25BD3 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 MAX4833EUT25BD3?
For technical support, including MAX4833EUT25BD3 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX4833EUT25BD3 requirements.
6.How does Aetrix verify that MAX4833EUT25BD3 is sourced from the original manufacturer or authorized distributors?
All MAX4833EUT25BD3 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 MAX4833EUT25BD3 meets industry standards.
7.What is the process for return or replacement of MAX4833EUT25BD3?
All MAX4833EUT25BD3 units undergo pre-shipment inspection (PSI). If there is an issue with MAX4833EUT25BD3, 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 MAX4833EUT25BD3 part is unused and in its original packaging.
Return procedure for MAX4833EUT25BD3:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MAX4833EUT25BD3 Tags
-
MIC5504-1.8YM5-TR
Microchip Technology
-
MIC5504-3.3YM5-TR
Microchip Technology
-
MIC5365-3.0YC5-TR
Microchip Technology
-
MIC5365-1.8YC5-TR
Microchip Technology
-
MIC5365-2.5YC5-TR
Microchip Technology
-
MIC5365-3.3YC5-TR
Microchip Technology
-
MIC5365-3.3YD5-TR
Microchip Technology
-
MIC5317-3.3YM5-TR
Microchip Technology
-
TLV1117LV33DCYR
Texas Instruments
-
MIC5317-3.3YMT-TZ
Microchip Technology
-
MIC5528-3.3YMT-TR
Microchip Technology
-
TLV75801PDRVR
Texas Instruments
Tech Hub
Schmitt triggers use separate rising and falling thresholds to stabilize slow or noisy signals. This guide covers hysteresis, 74HC14 and 74HCT14 selection, comparator calculations, RC oscillators and p…
Counterfeit components can hide behind convincing markings and passing basic function tests. This engineering reference covers source traceability, external inspection, X-ray, XRF, electrical testing, …
A practical engineering and sourcing framework covering lifecycle verification, lifetime-buy calculations, replacement qualification, supplier checks and counterfeit-risk controls.
TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.
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…
