TPS61088 Boost Converter Step Up Board Power Supply Module

The TPS61088 boost converter is a high-performance DC-DC step-up power module designed for applications that require high output power, fast response, low ripple, and stable voltage conversion. Based on the TI TPS61088RHLR power solution, this module supports up to 10A switch current and operates at a switching frequency of approximately 1MHz.

The module supports both PWM and PFM operating modes, allowing users to select the mode according to their application requirements. The default configuration is PFM mode for lower standby power consumption. The adjustable version also uses high-quality tantalum capacitors and a high-current inductor to improve overall stability and filtering performance.

With a maximum output power of approximately 30W, the TPS61088 module can use for high-current boost applications such as stepping up multiple lithium batteries to 5V at 4A or 5A. It can also provide higher output voltages such as 9V and 12V. When operating at higher power levels, require proper heat dissipation to maintain stable output performance and reduce ripple.

1. What is the TPS61088 Boost Converter?

2. Pinout

3. Features

4. Specifications

5. Application

6. TPS61088 vs Other Boost Converter Modules

7. Frequently Asked Questions[FAQ]

What is the TPS61088 Boost Converter?

The TPS 61088 boost converter is a DC-DC step-up module that converts a lower input voltage into a higher regulated output voltage. It supports an input voltage range of 2.7V to 12V and an adjustable output range of approximately 4.5V to 12.6V.

The module is designed for high-current applications where a small boost converter not provide sufficient output power. Its high-frequency switching operation, high-current inductor, and quality filtering components help provide fast transient response and stable output voltage.

One of its main advantages is the ability to deliver relatively high output current without significant voltage collapse when properly powered and cooled. This makes it suitable for multiple lithium batteries connected in parallel, portable equipment, vehicle electronics, DIY power supplies, and industrial applications.

The TPS61088 module can configure for different output voltages, including 5V, 9V, and 12V, while an ADJ configuration can use when require a customized output voltage.

TPS61088 Module Pinout

The TPS61088 module provides input, output, ground, voltage-selection, and operating-mode connections.

Jumper Pads: The jumper pads are used to select predefined output voltages. Users can choose different voltage settings such as 5V, 9V, or 12V. If none of the jumper pads are shorted, the output voltage can be adjusted through the ADJ resistor. The jumper configuration and ADJ resistor should not be used simultaneously.

PWM Jumper Pad: The PWM jumper near the output terminal controls the operating mode. When the two pads are shorted, the module operates in PWM mode. When they are open, it operates in PFM mode. The default configuration is PFM.

For fixed-voltage versions, the module is normally shipped in PFM mode. Users can short the PWM pads with a 0Ω resistor or another suitable connection to switch the module to PWM mode.

TPS61088 Step Up Module Features

The TPS 61088 boost module combines high-current switching capability with a compact design and flexible operating modes.

10A Switch Current: The module uses the TPS 61088 solution with a switch-current capability of up to 10A, making it suitable for demanding boost applications.

1MHz High-Frequency Switching: Its approximately 1MHz switching frequency allows the module to respond quickly while maintaining a compact power-stage design.

Stable High-Current Output: With suitable input power and thermal management, the module can provide stable output under relatively high load conditions.

Low Output Ripple: High-quality capacitors and a high-current inductor help improve filtering and reduce output ripple.

Fast Response: The high-frequency design provides fast response to load changes, which is useful for electronic equipment with varying power requirements.

Dual Operating Modes: Can select PWM and PFM modes according to the application's power-consumption and performance requirements.

Up to 30W Output Power: The module can provide up to approximately 30W under suitable operating conditions. Require thermal management when operating near maximum power.

Multiple Voltage Options: The module can configure for common output voltages such as 5V, 9V, and 12V, while an adjustable configuration provides greater flexibility.

Compact Design: Its small size makes it convenient for DIY electronics, portable equipment, industrial devices, and vehicle applications.

TPS61088 Output Voltage Adjustment

The module provides several ways to select the output voltage.

For fixed-voltage versions, can use jumper pads to select common output values such as 5V, 9V, or 12V. This makes the module convenient when require a standard voltage.

For adjustable versions, can configure the output voltage through the ADJ resistor or potentiometer. Before connecting a sensitive load, recommend to measure the output voltage with a multimeter and confirm that it matches the required value.

Should also adjust the module before connecting a high-current load, especially when the output voltage is being changed from one voltage range to another.

TPS61088 Module Specifications

Table

PWM and PFM Operating Modes

The TPS61088 module supports two different operating modes: PWM and PFM.

PWM Mode

In PWM mode, the converter operates with controlled pulse-width modulation at a relatively constant switching frequency. This mode is useful when stable switching behavior, fast transient response, and predictable output performance are priorities.

PWM mode is particularly suitable for applications with relatively high and continuous load requirements.

PFM Mode

PFM mode is designed to reduce power consumption under light-load or standby conditions. The module is shipped in PFM mode by default.

PFM can be useful for battery-powered equipment where reducing standby current is important. The module's typical PFM static current is approximately 200µA to 600µA, depending on operating conditions.

Users can switch between PFM and PWM by configuring the corresponding jumper pads.

TPS61088 Applications

Can use the TPS61088 boost converter in many applications requiring a higher voltage from a lower-voltage DC power source.

Lithium Battery Power Systems

The module is suitable for battery-powered systems where the available battery voltage is lower than the required operating voltage. Multiple lithium batteries connected in parallel can provide higher input current capacity for high-power boost applications.

5V High-Current Power Supply

Can use to boost a lower battery voltage to 5V for embedded systems, development boards, communication equipment, and other electronics requiring several amps of current.

9V and 12V Power Conversion

The module can also boost the input to 9V or 12V, making it useful for powering devices that require these standard voltages from a lower-voltage battery or DC source.

DIY Adjustable Power Supply

With its adjustable output configuration, the module can be integrated into DIY laboratory power supplies, portable power systems, and experimental electronics projects.

Vehicle Electronics

The wide input range makes the module useful for selected vehicle power applications where need a higher regulated voltage from a lower DC source.

Industrial Equipment

The compact high-power design can be integrated into industrial control equipment, portable instruments, embedded systems, and other electronic devices requiring a compact DC-DC boost stage.

TPS61088 vs Other Boost Converter Modules

The TPS61088 is intended for higher-current applications than many small boost modules. However, the best choice depends on required input voltage, output voltage, output current, efficiency, size, and thermal requirements.

MT3608

The MT3608 is a compact boost converter commonly used for low-power DIY electronics. Typical modules support adjustable voltage conversion and are available in small PCB formats. They are convenient for lightweight applications but are not designed to replace a high-power TPS61088 solution.

SX1308

The SX1308 boost module is another compact adjustable DC-DC converter. It can be useful for small battery-powered projects and general-purpose voltage boosting where the required output current is relatively modest.

XL6009

The XL6009 is a popular adjustable boost converter module that can use for applications such as 5V, 12V, and 24V voltage conversion. It is a practical choice for general-purpose DIY power supplies, although its performance and thermal requirements differ from those of the TPS61088.

For applications requiring higher output power, fast response, and compact high-current conversion, the TPS61088 is a stronger candidate. For simple low-power projects, MT3608 or SX1308 modules are more economical and easier to use.

TPS61088RHLR Datasheet PDF

For complete electrical characteristics, pin descriptions, application circuits, recommended operating conditions, layout recommendations, and mechanical dimensions, refer to the official Texas Instruments datasheet.

Frequently Asked Questions[FAQ]

What is a step-up module?

A step-up module, also called a boost converter, is a DC-DC power circuit that increases a lower input voltage to a higher output voltage. For example, it can convert a battery voltage into 5V, 9V, 12V, or another higher regulated voltage.

What are the disadvantages of step-up converters?

Boost converters cannot create power from nothing. Increasing output voltage reduces the available output current for a given input power, while switching losses and heat reduce efficiency. They also produce electromagnetic interference and require proper filtering and thermal management.

How does a step-up module work?

A boost converter uses an inductor, switching device, diode or synchronous switching circuit, capacitor, and control circuit. The switch rapidly stores energy in the inductor and then transfers that energy to the output, producing a voltage higher than the input.

Can you step-up 12v to 24v?

Yes. A suitable boost converter can increase 12V DC to 24V DC. The converter must be rated for the required output current and power. For a high-power 12V-to-24V application, the input source must also provide sufficient current to maintain stable operation.

Which is more efficient, buck or boost converter?

Neither topology is always more efficient. A buck converter generally has an advantage when reducing voltage, while a boost converter is optimized for increasing voltage. Actual efficiency depends on the converter design, input/output voltage ratio, load, switching losses, components, and thermal conditions.

How efficient is a 12V to 48V boost converter?

Efficiency varies by converter design and load. A 12V-to-48V conversion requires a relatively large voltage increase, so input current can become substantial at higher output power. A well-designed converter may achieve high efficiency, but actual performance must check under the intended load.

Conclusion

The TPS61088 boost converter is a compact, high-current DC-DC step-up solution for applications requiring more power than typical small boost modules can provide. With up to 10A switch current capability, approximately 1MHz switching frequency, PWM/PFM operation, adjustable output voltage, and up to 30W output power, it is suitable for battery systems, DIY power supplies, vehicle electronics, and industrial equipment.

Its ability to support 5V, 9V, and 12V outputs makes the module flexible for different projects. For high-power applications, however, users should pay close attention to input current, output current, efficiency, PCB temperature, and heat dissipation to achieve reliable long-term operation.

Read More:

1. RFM95W LoRa RF Transceiver Module 868 915 MHZ: Guide

2. MT3608 Boost Converter - An In-Depth Guide

3. Guide To The XL6009 Boost Converter