My Inquiry
My Account
Analog Devices Inc./Maxim Integrated MAX16033PLB23+T
- Part No.:
- MAX16033PLB23+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Supervisors
- Package:
- 10-WFDFN
- Datasheet:
-
MAX16033PLB23+T.pdf
- Description:
- IC SUPERVISOR 1 CHANNEL 10UDFN
- Quantity:
- Payment:
- Shipping:
Inventory:1,934
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
The MAX16033PLB23+T from Maxim Integrated is a low-power, 10-pin μDFN supervisory circuit for microprocessor systems, featuring factory-set 2.32V reset threshold, active-low open-drain RESET and PFO outputs, manual-reset input (MR), power-fail comparator, and chip-enable gating. It operates from 1.2V to 5.5V and supports battery switchover in portable POS terminals and critical μP power monitoring applications.
For engineers reviewing the MAX16033PLB23+T datasheet, MAX16033PLB23+T pinout, MAX16033PLB23+T application, or MAX16033PLB23+T equivalent, key selection considerations include its 2.32V reset threshold accuracy, 13µA quiescent current, -40°C to +85°C operation, and compatibility with SRAM backup in brownout conditions.
Technical Context
The MAX16033PLB23+T integrates a precision reset generator with 2.32V ±0.06V threshold, independent 1.235V power-fail comparator (PFI/PFO), debounced MR input with 20kΩ internal pullup, and CEIN-to-CEOUT transmission gate with ≤7ns propagation delay at 50pF load. Its reset timeout is guaranteed ≥140ms with <280ms max.
It implements battery switchover via internal MOSFET with VCC-to-OUT on-resistance of 3.1Ω (at 4.75V/150mA) and BATT-to-OUT on-resistance of ≤4.6Ω (at 2.5V/5mA), enabling seamless SRAM retention during VCC dropout while maintaining <2µA battery standby current at -40°C to +85°C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reset Threshold | 2.25V (min) to 2.38V (max); precise 2.32V nominal for reliable 2.5V system brownout detection |
| Supply Current | 13µA (typ) at 2.8V; enables multi-year battery life in backup mode |
| Reset Timeout Period | 140ms (min) to 280ms (max); ensures full μP initialization before release |
| Output Type | Active-low open-drain RESET and PFO; allows wired-OR logic and flexible pull-up voltage selection |
| Operating Temp Range | -40°C to +85°C; fully specified for industrial and embedded environments |
| Package | 10-pin µDFN (2mm × 2mm); ultra-compact footprint for space-constrained PCBs |
| Battery Standby Current | 2µA (max) over full temp range; minimizes battery drain during extended backup |
Pinout & Package
MAX16033PLB23+T is housed in a 2mm × 2mm, 10-pin µDFN package with exposed pad for thermal performance and compact layout.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - RESET | Active-low open-drain reset output | Asserts low during VCC < 2.32V, MR low, or power fail; requires external pull-up for logic-level compatibility |
| 2 - CEIN | Chip-enable input | Controls CEOUT gating path; high enables pass-through, low disables during reset to prevent RAM corruption |
| 3 - PFI | Power-fail input | Monitors external supply via resistor divider; trips PFO when voltage falls below 1.235V |
| 4 - GND | Ground reference | Common return for all analog and digital functions; connects to exposed pad |
| 5 - MR | Manual-reset input | Debounced logic input with 20kΩ internal pullup; asserts RESET when pulled low |
| 6 - PFO | Active-low open-drain power-fail output | Signals early power failure; asserted when PFI < 1.235V or VCC < reset threshold |
| 7 - VCC | Main supply input | Accepts 1.2V–5.5V; powers internal circuitry and sources OUT during normal operation |
| 8 - OUT | Regulated output | Sources from VCC or BATT (whichever is higher and valid); delivers up to 200mA to SRAM |
| 9 - BATT | Backup battery input | Connects to coin cell or supercap; automatically engages when VCC drops 40mV below VBATT |
| 10 - CEOUT | Chip-enable output | Gated version of CEIN; held high during reset to block erroneous memory writes |
Key Features
| Feature | Design Value |
|---|---|
| Factory-trimmed 2.32V reset threshold | ±0.06V tolerance over temperature ensures accurate 2.5V rail monitoring without external resistors |
| Open-drain RESET/PFO outputs | Enables shared bus signaling and flexible voltage translation (e.g., 3.3V system driving 5V NMI line) |
| Chip-enable gating with 1μs hold time | Prevents partial memory writes during brownout by holding CEOUT high for 1μs after CEIN goes low |
| 13µA supply current at 2.8V | Reduces system power budget in always-on monitoring applications such as smart meters and IoT edge nodes |
| 2mm × 2mm μDFN package | Reduces board area by >60% vs. SOIC-8 while maintaining thermal performance via exposed pad |
Applications
| Portable POS Terminals | Critical μP Power Monitoring |
|---|---|
Use Scenario: Battery-backed receipt printers and handheld payment devices requiring data retention during AC loss or battery swap. IC Role / Device Role / Timing Role: Supervisory IC providing reset assertion, battery switchover, and power-fail warning to preserve SRAM contents and enable graceful shutdown. Use Value: Guarantees <2µA battery drain in backup mode and 140ms minimum reset pulse to ensure complete μP reset sequence execution. | Use Scenario: Industrial PLC controllers where undetected brownouts cause unsafe state transitions or corrupted I/O registers. IC Role / Device Role / Timing Role: Precision reset supervisor with 2.32V threshold and independent PFI comparator for dual-rail monitoring (e.g., 3.3V core + 5V I/O). Use Value: Delivers ±0.06V threshold accuracy and 4µs PFI-to-PFO delay to detect fast transients before system instability occurs. |
| Set-Top Boxes | Real-Time Clock Backup |
Use Scenario: Consumer STBs with nonvolatile configuration storage and timekeeping that must survive brief grid interruptions. IC Role / Device Role / Timing Role: Battery switchover controller routing power from main supply to backup cell when VCC drops below 2.32V. Use Value: Uses <4.6Ω BATT-to-OUT on-resistance at 2.5V to minimize voltage drop and extend RTC runtime during 100ms–500ms outages. | Use Scenario: Embedded systems with RTC chips requiring continuous power during main supply failure (e.g., smart thermostats, energy monitors). IC Role / Device Role / Timing Role: Low-quiescent-current supervisor asserting BATTON high and enabling backup path to maintain RTC oscillator and register state. Use Value: Draws only 1µA from battery at +25°C, enabling >10-year coin-cell lifetime while supporting 20mA peak RTC load. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar supervisory circuit applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX16033LLB23+T | Push-pull RESET/PFO outputs instead of open-drain; identical reset threshold and timing | Requires no external pull-up resistors; unsuitable for wired-OR bus configurations | Select when driving single-load NMI inputs directly and minimizing BOM count |
| TPS3808G33DBVR | 3.3V fixed reset threshold (not 2.32V); 1.8µA IQ; SOT-23-6 package | Lacks battery switchover, CE gating, PFI comparator, and MR input | Select only for basic 3.3V reset supervision where backup functionality is handled externally |
Compared with MAX16033LLB23+T and TPS3808G33DBVR, the MAX16033PLB23+T uniquely combines 2.32V precision reset, open-drain flexibility, integrated battery switchover, and chip-enable gating in a 2mm × 2mm footprint-making it irreplaceable for compact, battery-backed μP systems requiring full feature parity.
Availability
MAX16033PLB23+T is available at Aetrix Electronics and suitable for portable POS terminals, critical μP power monitoring, and set-top box designs requiring stable component supply, long-term lifecycle support, and RoHS-compliant packaging.
Supply support for MAX16033PLB23+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 and mixed-signal ICs for power, sensing, and connectivity applications across industrial, automotive, and computing markets.
The MAX16033–MAX16040 product line targets space-constrained, battery-sensitive systems requiring integrated reset, watchdog, power-fail warning, and SRAM backup control-all in sub-4mm² packages.
FAQ
What is the exact reset threshold voltage of the MAX16033PLB23+T?
The MAX16033PLB23+T has a factory-set reset threshold of 2.32V, with guaranteed minimum of 2.25V and maximum of 2.38V over the full -40°C to +85°C temperature range. This value is laser-trimmed and specified in the Electrical Characteristics table under "RESET OUTPUT" section of the datasheet. The '23' suffix in the part number explicitly denotes this 2.32V variant.
Does the MAX16033PLB23+T support battery switchover, and what is its on-resistance?
Yes, the MAX16033PLB23+T supports automatic battery switchover from VCC to BATT when VCC falls below the reset threshold and VBATT exceeds VCC by ≥40mV. Its BATT-to-OUT on-resistance is 4.6Ω (max) at 2.5V/5mA and 3.7Ω (max) at 3.15V/10mA, ensuring minimal voltage drop during backup operation. This is confirmed in the "Electrical Characteristics" table under "Output Voltage in Battery Backup Mode".
What is the function of the CEIN and CEOUT pins on the MAX16033PLB23+T?
The CEIN and CEOUT pins implement chip-enable signal gating to prevent erroneous memory writes during brownout. When RESET is deasserted, CEIN passes through to CEOUT with ≤7ns propagation delay. When RESET asserts, CEOUT is held high for 1μs then remains high regardless of CEIN state-blocking spurious CE transitions from corrupting CMOS RAM. This behavior is detailed in the "Chip-Enable Signal Gating" section of the datasheet.
Can the MAX16033PLB23+T operate from a 1.2V supply?
Yes, the MAX16033PLB23+T operates from 1.2V to 5.5V, with full functionality including RESET assertion down to 1.2V. Its active-low RESET output remains valid at VCC = 1.2V (VOL ≤ 0.4V at 100µA sink), and supply current is specified at 1.2V operation. This low-voltage capability is explicitly stated in the "Absolute Maximum Ratings" and "Electrical Characteristics" sections.
What is the purpose of the MR pin on the MAX16033PLB23+T, and does it require external components?
The MR (manual-reset) pin on the MAX16033PLB23+T allows external initiation of a reset pulse. It features an internal 20kΩ pullup resistor to VCC, so only a momentary switch from MR to GND is required-no external pullup or debounce circuitry is needed. The datasheet confirms MR is present on MAX16033/MAX16037 variants and specifies 1µs minimum pulse width and 120ns MR-to-RESET delay.
MAX16033PLB23+T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- 10-WFDFN
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Type:
- Battery Backup Circuit
- Number of Voltages Monitored:
- 1
- Voltage - Threshold:
- 2.32V
- Output:
- Open Drain or Open Collector
- Reset:
- Active Low
- Reset Timeout:
- 140ms Minimum
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 10-µDFN (2x2)
MAX16033PLB23+T FAQ
1.How can I place an order for MAX16033PLB23+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX16033PLB23+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 MAX16033PLB23+T reliable?
The price and inventory of MAX16033PLB23+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX16033PLB23+T is usually 5 days.
3.What payment methods are accepted for MAX16033PLB23+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX16033PLB23+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX16033PLB23+T?
MAX16033PLB23+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX16033PLB23+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 MAX16033PLB23+T?
For technical support, including MAX16033PLB23+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX16033PLB23+T requirements.
6.How does Aetrix verify that MAX16033PLB23+T is sourced from the original manufacturer or authorized distributors?
All MAX16033PLB23+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 MAX16033PLB23+T meets industry standards.
7.What is the process for return or replacement of MAX16033PLB23+T?
All MAX16033PLB23+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX16033PLB23+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 MAX16033PLB23+T part is unused and in its original packaging.
Return procedure for MAX16033PLB23+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MAX16033PLB23+T Tags
-
MIC826SYMT-TR
Microchip Technology
-
APX803S-31SA-7
Diodes Incorporated
-
APX803L20-29SA-7
Diodes Incorporated
-
TPS3828-33DBVR
Texas Instruments
-
V6340RSP3B+
EM Microelectronic
-
EM6325CXSP5B-2.9+
EM Microelectronic
-
MCP120T-300I/TT
Microchip Technology
-
MCP130T-315I/TT
Microchip Technology
-
MCP120T-475I/TT
Microchip Technology
-
MCP111T-300E/TT
Microchip Technology
-
MCP120T-315I/TT
Microchip Technology
-
MCP809T-315I/TT
Microchip Technology
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…
