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Analog Devices Inc./Maxim Integrated MAX619ESA-T
- Part No.:
- MAX619ESA-T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
MAX619ESA-T.pdf
- Description:
- IC REG CHARGE PUMP 5V 50MA 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:3,364
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Product details
Overview
MAX619ESA-T from Maxim Integrated is a regulated 5V ±4% charge-pump DC-DC converter for battery-powered systems, delivering up to 50mA output current from a 2V–3.6V input (e.g., two alkaline or lithium cells), with 500kHz internal oscillator, 1µA max shutdown current, and operation over –40°C to +85°C.
For engineers reviewing the MAX619ESA-T datasheet, MAX619ESA-T pinout, MAX619ESA-T application, or MAX619ESA-T equivalent, key selection criteria include guaranteed output current vs. input voltage (20mA at VIN ≥2V, 50mA at VIN ≥3V), no-inductor architecture, load-disconnect during shutdown, and SO-8 package compatibility with space-constrained portable designs.
Technical Context
The MAX619ESA-T uses a pulse-skipping controller to regulate output voltage by dynamically switching between voltage-doubler mode (VIN = 3.0V–3.6V), voltage-tripler mode (VIN = 2.0V–2.5V), and 2.5× mode (VIN = 2.5V–3.0V) to maximize efficiency across its input range. Internal circuitry selects the higher of VIN or VOUT as its supply rail.
It operates without inductors-relying solely on four external capacitors (two 0.22µF flying caps, one 10µF input, one 10µF output)-and features CMOS-compatible active-high SHDN with full load disconnect and 0.5ms typical startup time from shutdown at VIN = 3.6V.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | 5.0V ±4% (4.8V–5.2V); tightly regulated for logic-level compatibility and flash programming. |
| Max Output Current | 50mA at VIN ≥3V; sufficient for microprocessor I/O rails and op-amp supplies in compact systems. |
| Input Voltage Range | 2.0V to 3.6V; supports dual-cell battery operation across full discharge curve. |
| Shutdown Current | 1µA max; enables multi-year battery life in always-on portable instrumentation. |
| Oscillator Frequency | 500kHz fixed; enables small external capacitor selection and low EMI without filtering. |
| Operating Temp | –40°C to +85°C; qualified for industrial and extended-temperature embedded applications. |
| Efficiency | 80% typ. at VIN = 2V, IOUT = 20mA; maintains usable conversion under low-battery conditions. |
Pinout & Package
The MAX619ESA-T is housed in an 8-pin SO (Small Outline) package, 3.9mm × 4.9mm body, 1.27mm pitch, JEDEC MS-012 compliant, with exposed pad optional per variant (not applicable to ESA-T).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| C1+ | Positive terminal of flying capacitor C1 | Connects to internal switch node for charge transfer in tripler/doubler topology. |
| C1− | Negative terminal of flying capacitor C1 | Reference node for C1; tied to GND during specific half-cycles to enable voltage multiplication. |
| SHDN | Active-high CMOS shutdown control | Pulls internal switches open and disconnects OUT from IN when high; logic-compatible with 3.3V/5V controllers. |
| GND | Analog and power ground reference | Common return for all internal circuitry and external capacitors; requires low-impedance PCB connection. |
| C2− | Negative terminal of flying capacitor C2 | Switched node shared with C1− in doubler mode; critical for phase timing and ripple minimization. |
| C2+ | Positive terminal of flying capacitor C2 | Connected to internal pump node; forms series stack with C1 in tripler mode for 3× gain. |
| IN | Main input supply (2V–3.6V) | Primary power source; also used as internal bias rail when higher than VOUT. |
| OUT | Regulated +5V output | Delivers stable 5V ±4% to load; drops to 0V when SHDN is asserted. |
Key Features
| Feature | Design Value |
|---|---|
| No-inductor architecture | Eliminates magnetic components and EMI filters-reducing BOM count, board area (<0.1in²), and layout sensitivity. |
| Dynamic topology switching | Automatically selects doubler/tripler/2.5× modes based on VIN to sustain >75% efficiency across full 2V–3.6V range. |
| Load-disconnect shutdown | Physically isolates OUT from IN during shutdown-preventing backfeed and enabling true zero-load battery drain. |
| Low-noise charge-pump design | Uses ceramic flying caps (0.22µF) and fixed 500kHz frequency to minimize conducted and radiated noise vs. variable-frequency boost converters. |
| Guaranteed output current grading | Specified minima: 20mA at VIN ≥2V, 50mA at VIN ≥3V-enabling reliable system-level current budgeting without derating. |
Applications
| Two-Cell to 5V Conversion | Local 3V-to-5V Conversion |
|---|---|
Use Scenario: Powering 5V logic peripherals (e.g., UART transceivers, EEPROMs) from two AA/AAA batteries in handheld test equipment. IC Role / Device Role / Timing Role: Primary regulated 5V supply generator with automatic topology adaptation to battery voltage decay. Use Value: Maintains 5V ±4% output down to 2.0V input-extending usable battery life by ~25% versus fixed-doubler solutions. | Use Scenario: Generating local 5V rail for legacy sensors or ADC references in a 3.3V microcontroller-based data logger. IC Role / Device Role / Timing Role: Standalone level-shifting DC-DC stage with no external inductor or compensation network required. Use Value: Enables mixed-voltage subsystems using only four low-cost MLCCs-reducing solution size to <0.1in² and eliminating EMI filter components. |
| Battery-Powered Microprocessor Systems | 5V Flash Memory Programmer |
Use Scenario: Supplying clean 5V to microprocessor I/O banks and peripheral interfaces in portable medical monitors. IC Role / Device Role / Timing Role: Low-quiescent, load-disconnectable 5V regulator supporting rapid wake/sleep cycles via SHDN pin. Use Value: Achieves 1µA shutdown current and 0.5ms startup-minimizing sleep-mode leakage and enabling responsive system wake-up. | Use Scenario: Providing precise 5V programming voltage to parallel NOR/NAND flash devices in field-upgradeable embedded modules. IC Role / Device Role / Timing Role: Tight-regulation (±4%) charge-pump source with low output ripple (<100mV p-p) under transient loads. Use Value: Ensures flash write/erase compliance without external LDO post-regulation-reducing component count and cost. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar regulated charge-pump DC-DC converter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS60403DBVR | Fixed 5V output, 60mA max, 1.8V–5.5V input, 1.2MHz switching, 2.5µA quiescent current. | Higher input range supports single Li-ion; higher frequency allows smaller caps but increases EMI sensitivity. | Prefer for wider VIN or lower quiescent needs; not drop-in due to different pinout and control logic (active-low EN). |
| ADP5610ARUZ-5.0 | 5V ±2% output, 100mA max, 2.7V–5.5V input, 1.25MHz, integrated soft-start, 2.8µA shutdown current. | Higher precision and current, but requires minimum 2.7V input-unsuitable for deep-discharge 2-cell alkaline use. | Choose for tighter regulation or higher load current where input stays ≥2.7V; incompatible with sub-2.7V battery endpoints. |
Compared with TPS60403DBVR and ADP5610ARUZ-5.0, the MAX619ESA-T uniquely supports operation down to 2.0V input while guaranteeing 20mA output-making it the only option among the three viable for full two-cell alkaline discharge profiles without brownout.
Availability
MAX619ESA-T is available at Aetrix Electronics and suitable for portable instruments, battery-powered microprocessor systems, and compact 5V op-amp supplies requiring stable component supply across industrial temperature ranges.
Supply support for MAX619ESA-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 industrial, medical, automotive, and communications applications.
The MAX619 belongs to Maxim's charge-pump DC-DC converter product line, engineered specifically for ultra-compact, inductorless 5V generation from low-voltage battery sources in space- and power-constrained portable systems.
FAQ
What is the guaranteed output current of the MAX619ESA-T across its input voltage range?
The MAX619ESA-T guarantees 20mA output current when input voltage is ≥2.0V, and 50mA when input voltage is ≥3.0V, over the full –40°C to +85°C operating temperature range. These values are tested and specified in the datasheet's Electrical Characteristics table under defined load and input conditions-not typical or nominal figures.
Does the MAX619ESA-T require external inductors?
No, the MAX619ESA-T is a capacitor-based charge-pump DC-DC converter and requires no inductors. It uses only four external capacitors: two 0.22µF flying capacitors (C1, C2) and two 10µF input/output bulk capacitors (C3, C4). This eliminates magnetic components, reduces EMI, and enables ultra-compact layouts under 0.1in².
How does shutdown work on the MAX619ESA-T, and what happens to the output?
The MAX619ESA-T features an active-high CMOS-compatible SHDN pin. When pulled high, it halts internal switching, disconnects the output (OUT) from the input (IN), and allows VOUT to fall to 0V. This load-disconnect behavior prevents backfeed and ensures true zero-current draw-critical for long-term battery storage in portable systems using the MAX619ESA-T.
What package type and footprint does the MAX619ESA-T use?
The MAX619ESA-T is supplied in an 8-pin SO (Small Outline) package, compliant with JEDEC MS-012, with 3.9mm × 4.9mm body dimensions and 1.27mm lead pitch. It is surface-mount compatible and pin-for-pin identical to other MAX619 variants in SO packaging (e.g., MAX619CSA), enabling direct substitution within the same footprint.
Can multiple MAX619ESA-T devices be paralleled to increase output current?
Yes-two MAX619ESA-T units can be paralleled to increase total output drive capability. IN, OUT, and GND pins may be directly connected; however, C1+ / C1− and C2+ / C2− pins must remain isolated per device. Input and output capacitors may be shared if units are placed in close proximity, but separate capacitors are recommended for optimal transient response and ripple control in the MAX619ESA-T implementation.
MAX619ESA-T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Function:
- Step-Up
- Output Configuration:
- Positive
- Topology:
- Charge Pump
- Output Type:
- Fixed
- Number of Outputs:
- 1
- Voltage - Input (Min):
- 2V
- Voltage - Input (Max):
- 3.6V
- Voltage - Output (Min/Fixed):
- 5V
- Voltage - Output (Max):
- -
- Current - Output:
- 50mA
- Frequency - Switching:
- 500kHz
- Synchronous Rectifier:
- No
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
MAX619ESA-T FAQ
1.How can I place an order for MAX619ESA-T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX619ESA-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 MAX619ESA-T reliable?
The price and inventory of MAX619ESA-T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX619ESA-T is usually 5 days.
3.What payment methods are accepted for MAX619ESA-T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX619ESA-T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX619ESA-T?
MAX619ESA-T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX619ESA-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 MAX619ESA-T?
For technical support, including MAX619ESA-T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX619ESA-T requirements.
6.How does Aetrix verify that MAX619ESA-T is sourced from the original manufacturer or authorized distributors?
All MAX619ESA-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 MAX619ESA-T meets industry standards.
7.What is the process for return or replacement of MAX619ESA-T?
All MAX619ESA-T units undergo pre-shipment inspection (PSI). If there is an issue with MAX619ESA-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 MAX619ESA-T part is unused and in its original packaging.
Return procedure for MAX619ESA-T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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