MAX1632EAI DC-DC Controller: Features, Pinout, Applications, and Datasheet

You can trust the MAX1632EAI to control power in devices. It is a dc-dc controller with more than one output. It makes little noise and works well in notebook computers and battery-powered systems. This power management ic helps change power in a good way. It has features that help your devices work better:

• The buck converter inside lowers voltage and saves energy. This helps your system stay cool and work well.

• Having more than one output in one device makes power setup easier. It also lets you use energy in a smart and flexible way.

You get steady voltage and your battery lasts longer. This makes it great for new electronic designs.

Key Takeaways

• The MAX1632EAI DC-DC controller helps save power with a built-in buck converter. It cuts down on wasted energy and keeps devices from getting too hot.

• This controller has three separate outputs. This makes it easier to design and lets you share power in different ways in electronic systems.

• Safety features like thermal protection and overcurrent safeguards help the controller work safely. They also keep devices safe from harm.

• The MAX1632EAI works with a wide input voltage range from 4.2V to 30V. This makes it good for many battery-powered uses.

• Using the MAX1632EAI can help batteries last longer in portable devices. This means you can use your device longer before charging it again.

MAX1632EAI DC-DC Controller Features

Key Features

The MAX1632EAI dc-dc controller works well in many projects. It helps you manage power and voltage easily. The step-down conversion lowers voltage and saves energy. You get three outputs from one chip. This means you can power different parts of your system. The built-in linear regulator gives clean and quiet power. This is good for devices that need low noise.

Here is a table that explains the main features and what they do:

Feature Description	Details
Step-down conversion for better efficiency	Built-in buck converter for high efficiency, reducing wasted energy.
Built-in linear regulator for steady power	Integrated LDO regulator for clean, low-noise output.
Three separate outputs for flexibility	Provides three independent outputs for powering different parts of the system.
Adjustable switching frequency	Frequency can be set between 200 kHz and 300 kHz for performance and efficiency balance.
Wide supply voltage support	Accepts input voltages from 4.2V to 30V.
Dedicated 12V output with solid current capability	One output delivers 12V with up to 120 mA.
Built-in thermal protection	Includes thermal overload protection to prevent overheating.
Overcurrent and short-circuit safeguards	Designed with built-in protection against overcurrent and short-circuits.
Compact surface-mount design	Housed in a 28-SSOP package for easy mounting and space-saving.

These features make your design simple and safe. The dc-dc controller uses switching regulators for good performance. You can change the switching frequency to fit your needs. The wide voltage range lets you use it in many battery-powered devices. Safety features help protect your system from harm.

Tip: A dc-dc controller with more than one output can make your design easier and use fewer parts.

Technical Specifications

The technical specifications show how the MAX1632EAI gives strong power and safety. You get three outputs, including a 12V output with up to 120 mA. The controller uses switching regulators for high efficiency and steady voltage. The linear regulator gives clean and quiet power. This helps sensitive circuits work better.

Here are the main technical specifications you should know:

• Input Voltage Range: 4.2V to 30V

• Adjustable switching frequency: 200 kHz to 300 kHz

• Three outputs for flexible power supply

• Dedicated 12V output with 120 mA current

• Two linear regulators for stable 5V and 12V outputs

• Built-in thermal protection and overcurrent safeguards

• Compact 28-SSOP surface-mount package

You can see the output details in the table below:

Output Number	Voltage Level	Current
1	Controller	N/A
2	Controller	N/A
3	12V	120mA

The MAX1632EAI dc-dc controller uses step-down conversion for better efficiency. The built-in linear regulator keeps noise low. This helps your system run quietly and well. The controller works with many supply voltages, so you can use it in lots of battery-powered systems.

You get safety features that protect your devices. The controller has thermal protection, overcurrent protection, and short-circuit protection. These features help stop damage and keep your system working.

If you use the MAX1632EAI in notebook computers, you get good power conversion and longer battery life. The controller gives you more than one output from one chip. This makes your design easier. You also get safety features that help your device last longer.

Benefit	Description
Efficient power conversion	Reduces energy loss, enhancing battery life in notebooks.
Low noise operation	Ensures quiet performance, crucial for sensitive applications.
Multiple outputs from a single chip	Simplifies design and integration, reducing component count.
Built-in safety protections	Enhances system reliability, protecting against failures.
Wide input voltage range	Provides flexibility in design, accommodating various power sources.

You can use the MAX1632EAI dc-dc controller in many battery-powered devices. Its step-down conversion helps batteries last longer. The safety features keep your system safe in different power situations. You get strong and reliable power for your projects.

Pinout and Pin Functions

Pinout Overview

You need to know the pinout details when you use the MAX1632EAI DC-DC controller. This chip comes in a 28-pin SSOP package. Each pin has a special job. The table below shows the pinout details for this controller. You can use this table to find the right connections for your design.

Pin No.	Pin Name	Description
1	CSH3	Current-sense input for 3.3V SMPS. Sets current limit at 100mV relative to CSL3.
2	CSL3	Current-sense input, also serves as feedback input in fixed mode.
3	FB3	Feedback input for 3.3V SMPS, regulates output at about 2.5V. Can be tied to ground for fixed 3.3V mode.
4	12OUT	12V linear regulator output (120mA). Bypass with 1µF capacitor.
5	VDD	Supply voltage input for 12V regulator. Also connects to internal divider and overvoltage clamp.
6	SYNC	Oscillator sync and frequency select. Tie to VL for 300kHz, GND for 200kHz.
7	TIME/ON5	Timing capacitor and ON/OFF control for 5V.
8	GND	Ground reference.
9	REF	2.5V reference output. Bypass with 1µF capacitor.
10	SKIP	Logic control input that disables idle mode. Tie to GND for normal use.
11	RESET	Active-low reset output. Goes high after 32,000 clock cycles on startup.
12	FB5	Feedback input for 5V SMPS, regulates output at about 2.5V. Can be tied to ground for fixed 5V mode.
13	CSL5	Current-sense input for 5V SMPS, also used as feedback in fixed mode.
14	CSH5	Current-sense input for 5V SMPS. Current limit at 100mV relative to CSL5.
15	SEQ	Pin-strap input for power-up sequence. Selects order of outputs and reset behavior.
16	DH5	Gate drive for 5V high-side MOSFET.
17	LX5	Switching node for 5V SMPS.
18	BST5	Bootstrap capacitor connection for DH5.
19	DL5	Gate drive for 5V low-side MOSFET.
20	PGND	Power ground.
21	VL	5V internal linear regulator output, also powers logic.
22	V+	Battery voltage input, +4.2V to +30V range.
23	SHDN	Shutdown control input. Logic threshold near 1V.
24	DL3	Gate drive for 3.3V low-side MOSFET.
25	BST3	Bootstrap capacitor connection for DH3.
26	LX3	Switching node for 3.3V SMPS.
27	DH3	Gate drive for 3.3V high-side MOSFET.
28	RUN/ON3	ON/OFF control input for 3.3V.

Tip: Always check the pinout details before you connect the controller to your circuit. This helps you avoid mistakes and keeps your design safe.

Pin Functions

You can use the MAX1632EAI to control different power rails in your project. Each pin helps you manage the output or control the regulator. Here are some important pin functions you should know:

• 12OUT (Pin 4): This pin gives you a 12V output from the linear regulator. You can use it to power circuits that need a steady 12V. Add a 1µF capacitor to keep the output stable.

• VDD (Pin 5): This pin supplies voltage to the 12V regulator. It also connects to the chip’s safety features.

• FB3 (Pin 3) and FB5 (Pin 12): These pins help you set the output voltage for the 3.3V and 5V rails. You can tie them to ground for fixed output modes.

• SYNC (Pin 6): You can use this pin to set the switching frequency. Tie it to VL for 300kHz or to ground for 200kHz.

• RUN/ON3 (Pin 28) and TIME/ON5 (Pin 7): These pins let you turn the 3.3V and 5V outputs on or off.

• RESET (Pin 11): This pin tells you when the outputs are ready. It goes high after the controller starts up.

• VL (Pin 21): This pin gives you a 5V output from the internal regulator. It also powers the logic inside the chip.

You can see that each pin has a clear job. Some pins control the output, while others help the regulator work right. When you use the right pins, you get stable power for your system. The MAX1632EAI makes it easy to manage more than one output with just one chip.

Applications of MAX1632EAI

Typical Applications

The MAX1632EAI dc-dc controller is used in many devices. It works well when you need steady power and more than one voltage. You can use it in notebook computers and battery-powered gadgets. It is also good for things that need different voltage rails. Each part of your device gets the right voltage. The built-in regulator keeps noise low and power steady. If you make portable electronics, you want the battery to last longer. The MAX1632EAI helps save energy, so less power is wasted. This means you can use your device longer before charging. You also get better performance.

The MAX1632EAI is used for:

• Notebook computers that need different voltages for each part

• Battery-powered systems that need to save energy and last longer

• Devices that need many voltages but only use one chip

• Small circuits in big systems that need local dc-dc conversion

Tip: The MAX1632EAI can make your power design easier and use fewer parts.

This controller also has safety features. You get thermal protection, overcurrent protection, and short-circuit protection. These help keep your device safe and working well.

Industry Use Cases

You can find the MAX1632EAI dc-dc controller in many industries. It helps computers and other electronics work better. Here are some places where it is used:

• Portable electronics

• Desktop systems

• Communication devices

• Notebook and subnotebook computers

• PDAs

• Mobile communication devices

• Telecom equipment

• Network hardware like routers and switches

This controller is used where good power management is important. Each use needs steady voltage and strong power. The regulator inside helps keep your device quiet and safe.

If you look at the MAX1632EAI and the MAX1631EAI, both give you more than one output and safety features. The MAX1632EAI is special because it works with a wide voltage range and has a built-in regulator. This gives you more choices and better safety for your designs.

You can count on the MAX1632EAI dc-dc controller to give steady power, safe voltage, and good protection in many uses. This makes it a smart pick for your next project.

MAX1632EAI Datasheet Access

Where to Find the Datasheet

You can get the official MAX1632EAI datasheet on the internet. This file explains how the controller works and how to use it in your project. The datasheet tells you about voltage, power features, and output choices.

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Tip: Always read the official datasheet before you start your project. This helps you set the right voltage and power.

Using the Datasheet

You should look at the datasheet before using the MAX1632EAI in your design. The datasheet shows the voltage range, power type, and output details. You will see how the controller handles power and keeps your system safe. The table below lists important things you need to check:

Attribute	Value
Voltage - Supply	4.2V ~ 30V
Topology	Step-Down (Buck), Linear
Operating Temperature	-40°C ~ 85°C
Number of Outputs	3
Frequency - Switching	200kHz ~ 300kHz

When you read the datasheet, you learn why this controller is helpful. You get good power use and low noise, which is good for sensitive devices. The controller gives you three outputs, so you can power different parts of your project. Safety features inside protect your device from voltage spikes and power problems.

You also need to look at the example circuits in the datasheet. These show how to connect the controller in notebook computers and other devices. You see how to set up the voltage outputs and use extra parts like capacitors and inductors. The datasheet explains how to use the on/off and reset features for safe power control.

Note: The datasheet helps you match the controller’s voltage and power with your device’s needs. You can make a system that works well and stays safe.

You can count on the MAX1632EAI DC-DC controller for good power in many devices. This controller changes power well, makes little noise, and gives more than one output from one chip. It has safety features that help protect your system and keep the power steady. The table below shows how these features help with power:

Feature	Benefit for Power Systems
Buck and LDO regulation	Uses fewer parts and saves energy
Multiple outputs	Powers many parts with just one chip
Wide input range	Works with lots of power sources

You should always read the datasheet to set up power right and keep things safe. If you want more choices, you can check other power controllers with more than one output.

 

 

 

 

 

Written by Jack Elliott from AIChipLink.

 

AIChipLink, one of the fastest-growing global independent electronic   components distributors in the world, offers millions of products from thousands of manufacturers, and many of our in-stock parts is available to ship same day.

 

We mainly source and distribute integrated circuit (IC) products of brands such as Broadcom, Microchip, Texas Instruments, Infineon, NXP, Analog Devices, Qualcomm, Intel, etc., which are widely used in communication & network, telecom, industrial control, new energy and automotive electronics. 

 

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