My Inquiry
My Account
Analog Devices Inc./Maxim Integrated MAX16023PTAV12+
- Part No.:
- MAX16023PTAV12+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Supervisors
- Package:
- 8-WDFN Exposed Pad
- Datasheet:
-
MAX16023PTAV12+.pdf
- Description:
- IC SUPERVISOR 1 CHANNEL 8TDFN
- Quantity:
- Payment:
- Shipping:
Inventory:2,303
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
MAX16023PTAV12+ from Maxim Integrated is a low-power battery-backup circuit with integrated 1.2V LDO regulator, µP reset supervisor, and automatic VCC-to-battery switchover. It delivers up to 100mA output current, features 145ms reset timeout, 4µA typical supply current, and operates from 1.53V to 5.5V input. It is used to back up SRAM or RTCs during main power brownout.
For engineers reviewing the MAX16023PTAV12+ datasheet, MAX16023PTAV12+ pinout, MAX16023PTAV12+ application, or MAX16023PTAV12+ equivalent, key selection criteria include reset threshold accuracy (1.575V ±6%), battery-on indicator absence (MAX16023 variant), open-drain RESET output configuration, and 8-pin TDFN-EP package compatibility with space-constrained industrial and portable designs.
Technical Context
The MAX16023PTAV12+ integrates a precision low-dropout linear regulator (1.2V ±2.5% at 1mA), a voltage-monitoring reset circuit with factory-trimmed 1.575V threshold, and a battery switchover controller that activates when VCC falls below reset threshold and VBATT > VCC. It includes debounced manual-reset input (MR) and power-fail comparator input (PFI) referenced to 0.59V internal threshold.
Unlike the MAX16024, this device lacks CE gating, SET pin, BATT ON output, and adjustable output capability. Its PFO output provides early power-fail warning, and the open-drain RESET output supports flexible pull-up configurations for interfacing with diverse microprocessor reset inputs.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Regulated Output Voltage | 1.2V ±2.5% (factory-trimmed; ensures stable SRAM/RTC bias under backup conditions) |
| Reset Threshold Voltage | 1.575V (typ), ±6% tolerance (sets precise brownout detection point for 1.8V+ systems) |
| Supply Current (VCC mode) | 4µA (typ) at VCC = LDO + 0.5V (enables ultra-low quiescent power in always-on backup rails) |
| Battery Backup Current | 3.5–5.26µA (typ) at VBATT = 3V, VCC = 0 (minimizes battery drain during extended outages) |
| Output Current Capability | 100mA (max continuous; sufficient for 32KB–1MB SRAM retention or low-power RTCs) |
| Reset Timeout Period | 145–285ms (guaranteed minimum 145ms; meets JEDEC JESD88B µP reset timing requirements) |
| Operating Temperature Range | -40°C to +85°C (fully specified for industrial-grade reliability without derating) |
Pinout & Package
MAX16023PTAV12+ is housed in an 8-pin TDFN-EP (3mm × 3mm, 0.75mm height) package with exposed pad (internally connected to GND). Thermal resistance θJA = 41°C/W enables operation at full load in compact PCB layouts without forced airflow.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - VCC | Main supply input | Primary power source; bypassed with 0.1µF capacitor; powers all internal circuits except PFI/PFO comparators (powered from OUT) |
| 2 - BATT | Backup battery input | Connects to coin cell or supercap; isolated by freshness seal until first VCC power-up; enables seamless switchover during brownout |
| 3 - MR | Manual reset input | Active-low, internally pulled up to VCC (30kΩ); debounced; asserts RESET for ≥145ms after release |
| 4 - PFI | Power-fail comparator input | Monitors external voltage via resistive divider; triggers PFO when input falls below 0.59V threshold (±30mV hysteresis) |
| 5 - PFO | Power-fail comparator output | Active-low open-drain output; signals undervoltage on monitored rail; requires external pull-up |
| 6 - GND | Ground reference | Common return for VCC, BATT, OUT, and logic; exposed pad must be soldered to large ground plane |
| 7 - RESET | Supervisor reset output | Active-low open-drain; asserts when VCC < 1.575V or MR is low; holds for min. 145ms after recovery |
| 8 - OUT | LDO regulated output | 1.2V ±2.5% output; supplies SRAM/RTC; bypassed with 10µF low-ESR capacitor; powers PFI/PFO circuitry |
Key Features
| Feature | Design Value |
|---|---|
| Battery freshness seal | Prevents backup battery discharge until first VCC power-up, preserving shelf life and ensuring full capacity at first use |
| Factory-trimmed 1.2V LDO | ±2.5% output accuracy over -40°C to +85°C eliminates need for external feedback resistors or calibration |
| Ultra-low 4µA supply current | Enables >10-year coin-cell lifetime in battery-backed memory applications with typical 20mAh CR2032 cells |
| 145ms minimum reset timeout | Guarantees µP initialization completion before release, meeting industry-standard reset timing compliance |
| Open-drain RESET output | Supports wired-OR reset bus architectures and flexible voltage-level translation (e.g., 3.3V µP with 1.2V system rail) |
| Power-fail comparator (PFI/PFO) | Monitors secondary supply down to 0.6V with 30mV hysteresis, enabling early warning of auxiliary rail failure |
Applications
| SRAM Backup Power | Real-Time Clock (RTC) Supply |
|---|---|
|
Use Scenario: Maintaining data integrity in static RAM during AC mains interruption or battery depletion in industrial HMIs. IC Role / Device Role / Timing Role: Provides regulated 1.2V standby power and asserts hardware reset to freeze CPU state prior to power loss. Use Value: Eliminates need for external diode-OR and LDO, reducing BOM count by 3–4 components while guaranteeing <100ns switchover latency. |
Use Scenario: Sustaining timekeeping function in GPS modules during vehicle ignition-off periods lasting weeks. IC Role / Device Role / Timing Role: Delivers stable 1.2V to RTC oscillator and registers; monitors VCC to trigger controlled clock halt before brownout. Use Value: Achieves <5µA total system backup current, extending CR2032 battery life beyond 5 years at +25°C. |
| Point-of-Sale Terminal Memory | Portable Medical Device Data Logger |
|
Use Scenario: Preserving transaction logs in retail terminals during unexpected power cycling or battery swaps. IC Role / Device Role / Timing Role: Acts as intelligent power router and supervisor-switching to BATT, asserting RESET, and signaling power fail via PFO. Use Value: Prevents EEPROM corruption by ensuring µP enters safe shutdown before VCC drops below 1.575V threshold. |
Use Scenario: Securing patient vital sign buffers in handheld ECG recorders during field battery replacement. IC Role / Device Role / Timing Role: Supplies 1.2V to SRAM buffer and generates synchronized RESET pulse to halt ADC sampling before power collapse. Use Value: Guarantees zero-data-loss switchover with <20µs detection delay and no software intervention required. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar battery-backup supervisor applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX16024PTBS25+ | Fixed 2.5V output; includes CE gating, BATT ON indicator, and SET pin for adjustable versions; 10-pin TDFN | Required where chip-enable signal locking during reset is needed (e.g., high-speed µP interfaces) or 2.5V SRAM bias is standard | Select MAX16024PTBS25+ only if CEIN/CEOUT functionality or 2.5V output is mandatory; not pin-compatible with MAX16023PTAV12+ |
| TPS3808G12DBVR | Dedicated 1.2V supervisor IC (no LDO, no battery switchover); 5-pin SOT-23; 2.9µA IQ; 200ms reset timeout | Suitable for systems with separate backup LDO and only requiring reset assertion-not for integrated backup power delivery | Choose TPS3808G12DBVR when supervisory function is decoupled from power regulation and board space is extremely constrained |
Compared with MAX16024PTBS25+, MAX16023PTAV12+ offers simpler integration for 1.2V-only backup with lower pin count and no CE complexity; compared with TPS3808G12DBVR, it adds critical LDO and battery switchover-eliminating two external ICs but requiring larger 8-pin footprint.
Availability
MAX16023PTAV12+ is available at Aetrix Electronics and suitable for industrial controls, GPS systems, and portable medical devices requiring stable component supply across extended product lifecycles.
Supply support for MAX16023PTAV12+ 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, automotive, and communications markets.
The MAX16023/MAX16024 family was designed specifically for reliable, low-quiescent-power backup of volatile memory and real-time clocks in space- and energy-constrained applications.
FAQ
What is the exact reset threshold voltage of the MAX16023PTAV12+?
The MAX16023PTAV12+ has a factory-trimmed reset threshold of 1.575V (typical), with guaranteed minimum 1.514V and maximum 1.639V across -40°C to +85°C. This value is encoded in the "V" suffix per Maxim's ordering table and is laser-trimmed during production for high accuracy without external components.
Does the MAX16023PTAV12+ support adjustable output voltage?
No, the MAX16023PTAV12+ provides only a fixed 1.2V regulated output. Adjustable output capability is exclusive to the MAX16024 series, which includes the SET pin and internal reference for configuring 1.8V–5.25V outputs using an external resistor divider.
Can the MAX16023PTAV12+ be used without a backup battery?
Yes. When no backup battery is required, connect the BATT pin directly to GND. The device continues to operate as a 1.2V LDO and reset supervisor powered solely by VCC, retaining all monitoring and reset functions without switchover behavior.
What is the purpose of the PFI and PFO pins on the MAX16023PTAV12+?
PFI is a dedicated input for monitoring an additional voltage rail (e.g., main supply or battery voltage) via a resistive divider. PFO is its corresponding active-low open-drain output that asserts when the PFI voltage falls below 0.59V, enabling early power-fail warnings independent of the primary reset function.
Is the MAX16023PTAV12+ RoHS-compliant and lead-free?
Yes, the "+" suffix in MAX16023PTAV12+ explicitly denotes a lead-free and RoHS-compliant package per Maxim Integrated's ordering nomenclature. It uses matte-tin finish and meets JEDEC J-STD-020 moisture sensitivity level 1 (MSL-1) requirements.
MAX16023PTAV12+ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- 8-WDFN Exposed Pad
- Packaging:
- Bulk
- Product Status:
- Active
- Programmable:
- Not Verified
- Type:
- Battery Backup Circuit
- Number of Voltages Monitored:
- 1
- Voltage - Threshold:
- 1.575V
- Output:
- Open Drain or Open Collector
- Reset:
- Active Low
- Reset Timeout:
- 145ms Minimum
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-TDFN-EP (3x3)
MAX16023PTAV12+ FAQ
1.How can I place an order for MAX16023PTAV12+ through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX16023PTAV12+ 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 MAX16023PTAV12+ reliable?
The price and inventory of MAX16023PTAV12+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX16023PTAV12+ is usually 5 days.
3.What payment methods are accepted for MAX16023PTAV12+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX16023PTAV12+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX16023PTAV12+?
MAX16023PTAV12+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX16023PTAV12+ 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 MAX16023PTAV12+?
For technical support, including MAX16023PTAV12+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX16023PTAV12+ requirements.
6.How does Aetrix verify that MAX16023PTAV12+ is sourced from the original manufacturer or authorized distributors?
All MAX16023PTAV12+ 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 MAX16023PTAV12+ meets industry standards.
7.What is the process for return or replacement of MAX16023PTAV12+?
All MAX16023PTAV12+ units undergo pre-shipment inspection (PSI). If there is an issue with MAX16023PTAV12+, 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 MAX16023PTAV12+ part is unused and in its original packaging.
Return procedure for MAX16023PTAV12+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MAX16023PTAV12+ 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…
