company blog about MAX20343NEWE (Maxim) Switching Regulators: Ultra-Low Quiescent Current, Low Noise 3.5W Buck-Boost Regulator

Shenzhen Mingjiada Electronics Co., Ltd. [Supply] MAX20343NEWE (Maxim) Switching Regulators: Ultra-Low Quiescent Current, Low Noise 3.5W Buck-Boost Regulator

MAX20343NEWE is an ultra-low quiescent current, noninverting buck-boost converter with 1A current capability at 3.5V intended for applications that require long run times while also demanding bursts of high current.

MAX20343NEWE employs a unique control algorithm which seamlessly transitions between buck, buck-boost, and boost modes, minimizing discontinuities and subharmonics in the output voltage ripple. The low 1.9V input voltage for startup allows users to power the device from a variety of sources, and the near-zero minimum operating voltage gives the user the ability to extract as much as possible from their energy source.

MAX20343NEWE has also been designed to keep inductance and output capacitance requirements as low as possible for space-constrained applications.

Product Attributes Of MAX20343NEWE

Function: Step-Up/Step-Down
Output Configuration: Positive
Topology: Buck-Boost
Output Type: Adjustable
Number of Outputs: 1
Voltage - Input (Min): 1.9V
Voltage - Input (Max): 5.5V
Voltage - Output (Min/Fixed): 2.5V
Voltage - Output (Max): 5.5V
Current - Output: 1A
Synchronous Rectifier: Yes
Operating Temperature: -40°C ~ 85°C
Mounting Type: Surface Mount
Package / Case: 16-WFBGA, WLBGA
Supplier Device Package: 16-WLP (1.77x2.01)

MAX20343NEWE is ideal for power in optical sensor applications as well as for powering radios in low power, wide area network (LPWAN) applications since in both cases noise must be minimal and efficiency must be high. For instance, the small light-load output voltage ripple allows a photoplethysmography (PPG) system to operate at low LED currents without interference. Additionally, seamless transitions between operating modes enables the use of dynamic voltage scaling (DVS) to minimize headroom on the LED and to save power in such systems.

In applications where a low-power-density battery must be buffered by a super-capacitor to provide large LPWAN type bursts of current, the ultra-low operating voltage of the MAX20343NEW allows the user to extract as much energy as possible from the super capacitor. The low output inductance/capacitance requirement allows a small total solution size.

MAX20343NEW is available with a highly configurable I2C serial interface or as a single-pin-enabled fixed-programming version. MAX20343 operates over the -40°C to +85°C temperature range, is available in a 16-bump, 1.77mm x 2.01mm, 0.4mm pitch WLP package.

Features Of MAX20343NEW
Extend System Run Time
- Ultra-Low, 3.5µA (typ) Quiescent Current
- 250mW Ouptut Power with 500mV Input Voltage
- Dynamic Voltage Scaling (DVS)
Low, Continuous Noise Profile
- Eliminates Discontinuities Across Operating Voltage Range
- Eliminates Post-Filtering LDO in Noise Sensitive Applications
Adaptable Load Transient Response
- Adjustable Peak Current for Optimal Performance in Each Application
- Fast Load Transient Response Minimizes Settling Time
- Optional Feedback Integrator
Enable for up to 3.5W Output Power Capabilities
Disable for up to 1.75W Output Power and Faster Load Transient Settling Time
- FAST Pin Pretriggers Load Response and Offers Improved Load Transient
Flexible Control Options
- I2C Interface with Status Interrupts
- EN and Status Pins, Single-Resistor VOUT Selection (RSEL)
Extended Operating Temperature from -40°C to +85°C

Applications Of MAX20343NEWE

Biometric Optical Sensing Including PPG
Industrial Sensors
IoT
LPWAN (LTE/NB-IoT, LTE/Cat-M1)

Simplified Functional Block Diagram Of MAX20343NEWE

Company URL: https://www.integrated-ic.com/

FAQ
Q. Are your products original?
A: Yes, all products are original, new original import is our purpose.
Q:Which Certificates do you have?
A:We are ISO 9001:2015 Certified Company and member of ERAI.
Q:Can you support small quantity order or sample?Is the sample free?
A:Yes,we support sample order and small order.Sample cost is different according to your order or project.
Q:How to ship my order? Is it safe?
A:We use express to ship,such as DHL,Fedex,UPS,TNT,EMS.We can also use your suggested forwarder.Products will be in good packing and ensure the safety and we are responsible to product damage to your order.
Q:What about the lead time?
A:We can ship stock parts within 5 working days.If without stock,we will confirm lead time for you based on your order quantity.