My Inquiry
My Account
Analog Devices Inc./Maxim Integrated MAX8569BETT30
- Part No.:
- MAX8569BETT30
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 6-WDFN Exposed Pad
- Datasheet:
-
MAX8569BETT30.pdf
- Description:
- IC REG BOOST 3V 750MA 6TDFN
- Quantity:
- Payment:
- Shipping:
Inventory:1,637
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
MAX8569BETT30 from Maxim Integrated is a fixed-output 3.0V, 200mA synchronous step-up DC-DC converter in a 6-pin TDFN package, featuring 7µA quiescent current, <1µA shutdown current, and integrated power-on reset (RST) output. It operates from 1.5V–5.5V input, delivers up to 95% efficiency, and connects BATT to OUT during shutdown for backup power-ideal for battery-powered medical diagnostics and portable electronics.
For engineers reviewing the MAX8569BETT30 datasheet, MAX8569BETT30 pinout, MAX8569BETT30 application, or MAX8569BETT30 equivalent, key selection criteria include its fixed 3.0V output tolerance (±2.5%), RST threshold at 90% of nominal output, TDFN thermal performance, and shutdown-mode battery passthrough capability.
Technical Context
The MAX8569BETT30 uses a current-limited, oscillator-free control scheme where n-channel switch on-time terminates at either 750mA peak current or 5µs maximum duration. Its internal synchronous rectifier eliminates external Schottky diode requirements while enabling >90% efficiency across 1.5V–5.5V input range.
During shutdown, the device connects BATT directly to OUT via internal p-channel MOSFET and inductor path, supporting backup supply for RTC or SRAM without diode voltage drop. The RST output is open-drain with 90% VOUT threshold and <100nA leakage, requiring external pull-up to OUT.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 3.0V ±2.5% (2.925V–3.075V) over -40°C to +85°C - ensures stable logic supply for 3V microcontrollers. |
| Max Output Current | 200mA at VBATT = 2.0V, VOUT = 3.0V - supports moderate-power peripherals like sensors or RF modules. |
| Quiescent Current | 7µA typical - minimizes battery drain in always-on low-power monitoring circuits. |
| Shutdown Current | <1µA - enables multi-year operation on coin-cell batteries in standby mode. |
| Efficiency | 95% max at 40mA load, VBATT = 2.0V - reduces thermal stress and extends runtime in compact enclosures. |
| RST Threshold | 90% of nominal VOUT (2.7V) with hysteresis - provides clean, glitch-free reset assertion for MCU initialization. |
| Switch Current Limit | 750mA peak n-channel limit - protects internal FETs during startup or overload without external current sensing. |
Pinout & Package
MAX8569BETT30 is housed in a 6-pin TDFN (3mm × 3mm, 0.8mm height) with exposed paddle (EP) for thermal enhancement. The EP must be soldered to PCB ground plane per Maxim's layout guidelines.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 SHDN | Logic-controlled shutdown input | Active-low enable; 1.228V threshold enables low-battery cutoff when used with resistor divider. |
| 2 BATT | Battery input connection | Accepts 1.5V–5.5V source; connected internally to OUT during shutdown for backup power path. |
| 3 GND | Analog/digital ground reference | Common return for all internal circuitry; must be tied to low-impedance PCB ground plane. |
| 4 LX | Switch node for external inductor | Drives high-side n-channel FET; connects to OUT during shutdown via internal p-channel path. |
| 5 OUT | Regulated 3.0V output | Supplies load and serves as bootstrap supply; bypassed with ≥10µF ceramic capacitor. |
| 6 RST | Open-drain power-on reset output | Pulls low when VOUT < 2.7V; high-impedance above threshold - requires external pull-up to OUT. |
| EP | Exposed thermal pad | Not electrically active; must be soldered to PCB ground for thermal dissipation (derating: 18.2mW/°C above +70°C). |
Key Features
| Feature | Design Value |
|---|---|
| Synchronous rectification | Eliminates external Schottky diode, reducing BOM count and board area while improving efficiency by ~5–8% vs. asynchronous designs. |
| BATT-to-OUT passthrough in shutdown | Enables single-battery backup for RTC/SRAM without added diodes or switches - saves 0.3–0.4V forward drop and associated leakage. |
| Integrated RST with 90% VOUT threshold | Provides deterministic power-good signaling for microcontroller reset sequencing without external supervisor IC. |
| 750mA internal n-channel switch limit | Supports robust startup into capacitive loads and transient surges without external current-limiting components. |
| 7µA quiescent current | Extends shelf life and operational lifetime in energy-constrained applications such as wearable health monitors. |
Applications
| Medical Diagnostic Equipment | Digital Cameras |
|---|---|
|
Use Scenario: Portable glucose meters and handheld ultrasound probes requiring stable 3.0V rail from single Li+ or dual alkaline cells. IC Role / Device Role / Timing Role: Primary 3.0V step-up regulator with RST-driven MCU initialization and shutdown-mode battery passthrough for memory retention. Use Value: Enables 3.0V logic compatibility with ultra-low IQ, eliminating need for separate backup battery or supervisor IC. |
Use Scenario: Image sensor bias and flash LED driver supply in compact point-and-shoot cameras. IC Role / Device Role / Timing Role: High-efficiency boost converter delivering regulated 3.0V during burst capture, with RST ensuring clean sensor initialization. Use Value: Delivers 200mA at >90% efficiency across 1.8V–3.3V battery range, minimizing heat generation near optical modules. |
| PDAs and Smartphones | Battery Backup Systems |
|
Use Scenario: Auxiliary 3.0V supply for legacy interface ICs or secure element co-processors in space-constrained mobile platforms. IC Role / Device Role / Timing Role: Secondary voltage rail generator with fast enable/disable and precise RST timing for peripheral power sequencing. Use Value: TDFN footprint (3mm × 3mm) and integrated RST reduce component count versus discrete boost + supervisor solutions. |
Use Scenario: Real-time clock (RTC) and SRAM backup in industrial controllers during main power loss. IC Role / Device Role / Timing Role: Battery passthrough regulator that maintains VOUT from BATT during shutdown, with RST signaling valid backup voltage. Use Value: Eliminates external diode and supervisor, reducing voltage drop to <50mV and simplifying backup power architecture. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar fixed-output boost converter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX8569BETT+ | Fixed 3.3V output (±2.3%), identical pinout, same RST function and thermal specs. | Requires system-level voltage tolerance for 3.3V logic; not suitable where 3.0V is mandated (e.g., certain ADC references). | Select MAX8569BETT30 when 3.0V nominal is required; use MAX8569BETT+ only if 3.3V is acceptable and tighter output tolerance is needed. |
| TPS61022DSQR | 3.3V fixed output, 2.2MHz switching frequency, 1.8V min input, no integrated RST output. | Lacks power-on reset functionality; requires external supervisor for MCU reset; higher switching noise may affect sensitive analog sections. | Choose only if higher switching frequency and smaller inductor size are prioritized over RST integration and ultra-low IQ. |
Compared with MAX8569BETT+, the MAX8569BETT30 offers precise 3.0V regulation essential for 3V logic domains, while the TPS61022DSQR trades RST integration and sub-µA shutdown for higher-frequency operation and lower minimum input voltage.
Availability
MAX8569BETT30 is available at Aetrix Electronics and suitable for medical diagnostics, digital imaging, portable computing, and battery backup systems requiring stable component supply, long-term lifecycle support, and lead-free compliance.
Supply support for MAX8569BETT30 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 demanding industrial, medical, and communications applications.
The MAX8569A/MAX8569B product line targets ultra-low-power portable electronics requiring compact, efficient, and feature-integrated DC-DC conversion with built-in system supervision functions.
FAQ
What is the output voltage tolerance of the MAX8569BETT30 over temperature?
The MAX8569BETT30 delivers a fixed 3.0V output with ±2.5% tolerance (2.925V to 3.075V) across the full operating temperature range of -40°C to +85°C, as specified in the Electrical Characteristics table under "Output Voltage" for MAX8569BETT30. This ensures reliable operation for 3.0V logic interfaces without external trimming.
Does the MAX8569BETT30 require an external Schottky diode?
No, the MAX8569BETT30 does not require an external Schottky diode because it integrates a synchronous rectifier. This internal circuit replaces the external diode, improving efficiency to up to 95% and reducing solution size and cost - a key advantage confirmed in the General Description and Features sections of the datasheet.
How does the RST output of the MAX8569BETT30 behave during startup and shutdown?
The RST output of the MAX8569BETT30 is an open-drain signal that pulls low when VOUT falls below 90% of nominal (2.7V), and goes high-impedance when VOUT rises above that threshold. During shutdown, RST remains high-impedance. An external pull-up resistor to OUT is required to generate a logic-high reset signal for MCUs - behavior explicitly defined in the Pin Description and Applications Information sections.
Can the MAX8569BETT30 operate from a single alkaline cell?
Yes, the MAX8569BETT30 supports input voltages from 1.5V to 5.5V, making it fully compatible with a single fresh alkaline cell (nominal 1.5V, up to 1.65V). Startup voltage is guaranteed down to 1.24V at -40°C to +85°C, ensuring reliable turn-on even as the cell discharges - data verified in the Electrical Characteristics table under "Startup Voltage".
What is the thermal performance difference between the TDFN and SOT23 packages for the MAX8569BETT30?
The MAX8569BETT30 uses the 6-pin TDFN package (T633-1), which provides 1454mW continuous power dissipation at +70°C (derated at 18.2mW/°C above), versus 727mW for the SOT23 variant. This doubled thermal capacity allows higher sustained output current in compact layouts - a critical advantage confirmed in the Absolute Maximum Ratings section and Package Information tables.
MAX8569BETT30 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- 6-WDFN Exposed Pad
- Packaging:
- Bulk
- Product Status:
- Active
- Function:
- Step-Up
- Output Configuration:
- Positive
- Topology:
- Boost
- Output Type:
- Fixed
- Number of Outputs:
- 1
- Voltage - Input (Min):
- 1.5V
- Voltage - Input (Max):
- 5.5V
- Voltage - Output (Min/Fixed):
- 3V
- Voltage - Output (Max):
- -
- Current - Output:
- 750mA (Switch)
- Frequency - Switching:
- -
- Synchronous Rectifier:
- Yes
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 6-TDFN (3x3)
MAX8569BETT30 FAQ
1.How can I place an order for MAX8569BETT30 through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX8569BETT30 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 MAX8569BETT30 reliable?
The price and inventory of MAX8569BETT30 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX8569BETT30 is usually 5 days.
3.What payment methods are accepted for MAX8569BETT30?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX8569BETT30 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX8569BETT30?
MAX8569BETT30 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX8569BETT30 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 MAX8569BETT30?
For technical support, including MAX8569BETT30 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX8569BETT30 requirements.
6.How does Aetrix verify that MAX8569BETT30 is sourced from the original manufacturer or authorized distributors?
All MAX8569BETT30 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 MAX8569BETT30 meets industry standards.
7.What is the process for return or replacement of MAX8569BETT30?
All MAX8569BETT30 units undergo pre-shipment inspection (PSI). If there is an issue with MAX8569BETT30, 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 MAX8569BETT30 part is unused and in its original packaging.
Return procedure for MAX8569BETT30:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MAX8569BETT30 Tags
-
TPS562201DDCR
Texas Instruments
-
MC34063ABD-TR
STMicroelectronics
-
TPS561201DDCR
Texas Instruments
-
MC33063ADR
Texas Instruments
-
MC34063ADR
Texas Instruments
-
TPS560200DBVR
Texas Instruments
-
AP3012KTR-G1
Diodes Incorporated
-
TLV61048DBVR
Texas Instruments
-
AZ34063UMTR-G1
Diodes Incorporated
-
TPS562200DDCR
Texas Instruments
-
AP62300TWU-7
Diodes Incorporated
-
MC34063EBD-TR
STMicroelectronics
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…
