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Analog Devices Inc./Maxim Integrated MAX8862TESE
- Part No.:
- MAX8862TESE
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 16-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
MAX8862TESE.pdf
- Description:
- IC REG LINEAR DUAL
- Quantity:
- Payment:
- Shipping:
Inventory:1,145
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Product details
Overview
MAX8862TESE from Maxim Integrated is a low-cost, low-dropout dual linear voltage regulator optimized for battery-powered portable systems. It integrates two independent regulators delivering 250mA (OUT1) and 100mA (OUT2), with 160mV dropout at 200mA, P-channel MOSFET pass devices, and independent shutdown controls - enabling simultaneous power management for microcontrollers and RF sections in digital cordless phones.
For engineers reviewing the MAX8862TESE datasheet, MAX8862TESE pinout, MAX8862TESE application, or MAX8862TESE equivalent, this page delivers verified technical context, Dual Mode™ fixed/adjustable output configuration details, thermal protection behavior, reverse-battery tolerance, and real-world transient response data from the official Maxim datasheet.
Technical Context
The MAX8862TESE implements two independent linear regulators sharing a single 16-pin narrow SO package: OUT1 uses internal feedback (factory-preset 3.175V for suffix 'T') or external resistor divider via SET1; OUT2 supports identical Dual Mode™ operation with REF2 providing a 1.25V precision reference. Each regulator employs a P-channel MOSFET pass transistor to eliminate base-drive current, maintaining 200µA quiescent current across load and dropout conditions.
Power-good monitoring is implemented only on OUT1 via open-drain PWROK1 (trip at 4% below nominal), while SHDN1/SHDN2 provide logic-level shutdown with <1µA supply current. Thermal shutdown activates at +160°C with 20°C hysteresis, and reverse-battery protection tolerates –12V at IN1/IN2 without damage or backfeed.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Currents | 250mA (OUT1), 100mA (OUT2); sustained full-load capability with current limiting (580mA/250mA) |
| Dropout Voltage | 160mV at 200mA OUT1 load; enables operation down to VIN = VOUT + 0.16V |
| Quiescent Current | 200µA total (both regulators active); <1µA in shutdown - critical for standby battery life |
| Input Voltage Range | +2.5V to +11.5V per input; supports single-cell Li-ion up to 3-cell NiMH or alkaline stacks |
| Fixed Output Options | 3.175V (T-suffix), confirmed for MAX8862TESE; ±1.5% initial accuracy over temperature |
| Output Noise (OUT2) | 211µVRMS (10Hz–1MHz); low wideband noise optimized for analog/RF subsystems |
| Thermal Shutdown | Activates at +160°C junction temperature with 20°C hysteresis - prevents permanent damage during overload |
Pinout & Package
MAX8862TESE is housed in a 16-pin narrow SOIC package (JEDEC MS-012AA, 3.9mm width) with exposed lead frame GND pins (pins 4,5,12,13) serving as thermal vias to PCB ground plane.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| IN1, IN2 | Independent supply inputs | Accept +2.5V to +11.5V each; require 1µF low-ESR ceramic bypass to GND |
| OUT1, OUT2 | Main and secondary regulated outputs | OUT1: 250mA, 3.175V (T-suffix); OUT2: 100mA, adjustable or preset; both need ≥3.3µF / ≥2.2µF output caps |
| SET1, SET2 | Voltage-set inputs | Connect to GND for factory preset; connect to resistive divider for 2V–11V adjustable output (VSET = 1.25V) |
| SHDN1, SHDN2 | Independent shutdown controls | Logic-low disables respective regulator and reference; <1µA leakage in shutdown |
| PWROK1 | Open-drain power-good indicator | Asserts low when OUT1 drops >4% below nominal; requires external 100kΩ pull-up to IN1 |
| REF2 | Precision 1.25V reference output | Available for external circuitry; bypass with 0.1µF capacitor to reduce OUT2 noise |
| GND (pins 4,5,12,13) | Ground terminals | Multiple pins serve dual role: signal return and thermal conduction path to PCB ground plane |
| N.C. (pins 8,16) | No-connect terminals | No internal connection; must remain unconnected per datasheet |
Key Features
| Feature | Design Value |
|---|---|
| Dual Mode™ operation | Factory-preset (3.175V) or user-adjustable (2V–11V) output via external resistor divider on SET1/SET2 |
| P-channel MOSFET pass transistors | Eliminates base-drive current - maintains 200µA quiescent current in dropout and full load |
| Reverse-battery protection | Tolerates –12V at IN1/IN2; prevents backfeed and protects source - no external diodes required |
| Independent shutdown & power-good | SHDN1/SHDN2 disable regulators individually; PWROK1 provides system reset signaling for µC supervision |
| Thermal overload protection | Shuts down at +160°C junction temp; auto-restarts after 20°C cooldown - prevents latch-up during fault |
Applications
| Cellular Phone Power Management | Cordless Phone Base Station |
|---|---|
Use Scenario: Dual-rail power delivery to baseband processor (3.175V) and RF front-end (adjustable 2.85V). IC Role / Device Role / Timing Role: Primary voltage regulator supplying µC core and secondary regulator powering low-noise RF synthesizer. Use Value: 211µVRMS OUT2 noise ensures clean local oscillator supply; 160mV dropout extends usable battery life by ~12% vs. older PNP-based regulators. |
Use Scenario: Simultaneous regulation for DSP subsystem (250mA) and line-interface IC (100mA) in DECT 6.0 base station. IC Role / Device Role / Timing Role: Main regulator powers high-speed DSP; secondary supplies isolated analog interface with REF2 referenced biasing. Use Value: Independent SHDN1/SHDN2 enable selective subsystem sleep modes; reverse-battery protection guards against accidental AC adapter polarity reversal. |
| PCMCIA Card Power Control | Hand-Held Instrument Supply |
Use Scenario: Hot-plug power sequencing for Type II PCMCIA cards requiring 3.3V and 5V rails from single 5V host bus. IC Role / Device Role / Timing Role: OUT1 generates 3.3V for card logic; OUT2 configured via SET2 to 5.0V for analog front-end using external feedback. Use Value: Dual Mode™ eliminates need for separate 5V LDO; 200µA quiescent current meets PCMCIA suspend-mode leakage requirements (<500µA). |
Use Scenario: Battery-powered multimeter with LCD display, ADC, and serial interface requiring stable 3.175V and 2.85V supplies. IC Role / Device Role / Timing Role: OUT1 powers 16-bit ADC reference and µC; OUT2 supplies low-noise op-amps and display driver. Use Value: 2.5mVp-p OUT1 noise and 1mVp-p OUT2 noise meet 12-bit ADC PSRR requirements; thermal shutdown prevents overheating during extended measurements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-output LDO regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS767D318PWPR | Fixed 3.3V/1.8V outputs; higher 230mV dropout at 1A; no reverse-battery protection | Targeted at DSP + core logic; lacks adjustable mode and battery-reversal hardening | Choose for higher-current 3.3V/1.8V systems where reverse protection is handled externally |
| MCP1826S-3302E/DB | Single 3.3V output (250mA); no secondary regulator or PWROK; 350mV dropout at 250mA | Requires two ICs to replicate dual-rail function; no power-good or thermal hysteresis | Use only when space allows discrete dual-LDO implementation and system-level supervision exists |
Compared with TPS767D318PWPR and MCP1826S-3302E/DB, the MAX8862TESE uniquely combines dual independent regulation, Dual Mode™ adjustability, reverse-battery tolerance, and integrated power-good in a single 16-pin SO package - reducing BOM count and PCB area by 30% in portable telecom designs.
Availability
MAX8862TESE is available at Aetrix Electronics and suitable for cellular phone power management, cordless phone base stations, and hand-held instrument supply requiring stable component supply, long-lifecycle support, and guaranteed traceable sourcing.
Supply support for MAX8862TESE 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, communications, and consumer applications.
The MAX8862TESE belongs to Maxim's low-dropout linear regulator product line, designed specifically for dual-rail battery-powered portable equipment requiring ultra-low quiescent current, thermal robustness, and reverse-polarity resilience.
FAQ
What output voltage does the MAX8862TESE deliver?
The MAX8862TESE delivers a factory-preset 3.175V on OUT1 and supports either preset or adjustable output on OUT2. The 'T' suffix confirms the 3.175V main output (±1.5% initial accuracy). OUT2 can be set to 3.175V via internal feedback (SET2 = GND) or adjusted from 2V to 11V using an external resistor divider on SET2, leveraging the 1.25V internal reference.
How does the MAX8862TESE achieve low dropout voltage?
The MAX8862TESE achieves 160mV dropout at 200mA by using P-channel MOSFET pass transistors instead of PNP bipolar devices. This eliminates base-drive current, allowing the regulator to maintain regulation even when VIN approaches VOUT + 0.16V - extending usable battery life in portable systems where input voltage decays during discharge.
Does the MAX8862TESE include reverse-battery protection?
Yes, the MAX8862TESE includes built-in reverse-battery protection. Its IN1 and IN2 inputs tolerate –12V without damage or backfeed current, making it suitable for applications where battery polarity reversal is possible. External 20kΩ resistors between SHDNx and INx are recommended to limit reverse current through control pins during fault conditions.
What is the purpose of the REF2 pin on the MAX8862TESE?
The REF2 pin on the MAX8862TESE provides a precision 1.25V bandgap reference output, bypassed with a 0.1µF capacitor to GND. It serves dual purposes: enabling accurate external feedback for adjustable OUT2 voltage, and supplying a low-noise reference for external analog circuitry - improving overall system noise performance when used with low-ESR capacitors.
How does the power-good (PWROK1) function work on the MAX8862TESE?
The PWROK1 pin on the MAX8862TESE is an open-drain output that asserts low when OUT1 falls more than 4% below its nominal voltage (e.g., <3.05V for 3.175V output). In internal-feedback mode, it monitors OUT1 directly; in external-feedback mode, it triggers when SET1 voltage drops below 1.2V. A 100kΩ pull-up to IN1 converts it to an active-high logic signal for µC reset or LED indication.
MAX8862TESE Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- 16-SOIC (0.154", 3.90mm Width)
- Packaging:
- Bulk
- Product Status:
- Active
- Output Configuration:
- Positive
- Output Type:
- Adjustable (Fixed)
- Number of Regulators:
- 2
- Voltage - Input (Max):
- 11.5V
- Voltage - Output (Min/Fixed):
- 2V (3.18V)
- Voltage - Output (Max):
- 11V
- Voltage Dropout (Max):
- 0.35V @ 100mA, 0.33V @ 200mA
- Current - Output:
- 100mA, 250mA
- Current - Quiescent (Iq):
- 330 µA
- Current - Supply (Max):
- -
- PSRR:
- -
- Control Features:
- Enable, Power Good
- Protection Features:
- Over Temperature, Reverse Polarity, Short Circuit
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-SOIC
MAX8862TESE FAQ
1.How can I place an order for MAX8862TESE through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX8862TESE 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 MAX8862TESE reliable?
The price and inventory of MAX8862TESE are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX8862TESE is usually 5 days.
3.What payment methods are accepted for MAX8862TESE?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX8862TESE transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX8862TESE?
MAX8862TESE orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX8862TESE 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 MAX8862TESE?
For technical support, including MAX8862TESE datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX8862TESE requirements.
6.How does Aetrix verify that MAX8862TESE is sourced from the original manufacturer or authorized distributors?
All MAX8862TESE 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 MAX8862TESE meets industry standards.
7.What is the process for return or replacement of MAX8862TESE?
All MAX8862TESE units undergo pre-shipment inspection (PSI). If there is an issue with MAX8862TESE, 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 MAX8862TESE part is unused and in its original packaging.
Return procedure for MAX8862TESE:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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