MAX77640
Ultra-Low Power PMIC with 3-Output SIMO, 150mA LDO, and Power Sequencer
Always-On, Low-Power Application Mini PMIC. Single Inductor with 3 Buck-Boost Outputs, LDO, and Current Sinks
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Key Features
Applications/Uses
| VIN (V) (min) | 2.7 |
| VIN (V) (max) | 5.5 |
| # Step-Down Outputs | 3 |
| # Step-Up Outputs | 3 |
| # LDO Outputs | 1 |
| VOUT (V) (min) | 0.8 |
| VOUT (V) (max) | 3.95 |
| Package/Pins | WLP/30 |
| Budgetary Price (See Notes) | 2.09 |
Simplified Block Diagram
Technical Docs
| Data Sheet | Ultra-Low Power PMIC with 3-Output SIMO, 150mA LDO, and Power Sequencer | Aug 08, 2018 | |
| User Guide | MAX77640/MAX77641 Programmer's Guide | ||
| User Guide | MAX77640/MAX77641 I2C-Compatible Serial Interface Implementation Guide | ||
| Design Solution | Choose a Tailored SIMO PMIC for your Portable Design |
Support & Training
Search our knowledge base for answers to your technical questions.
Filtered SearchOur dedicated team of Applications Engineers are also available to answer your technical questions. Visit our support portal .
Parameters
| VIN (V) (min) | 2.7 |
| VIN (V) (max) | 5.5 |
| # Step-Down Outputs | 3 |
| # Step-Up Outputs | 3 |
| # LDO Outputs | 1 |
| VOUT (V) (min) | 0.8 |
| VOUT (V) (max) | 3.95 |
| Package/Pins | WLP/30 |
| Budgetary Price (See Notes) | 2.09 |
Key Features
- Compact, High-Efficiency Power Solution
- 3-Output Single-Inductor Multiple-Output (SIMO) Buck-Boost Regulator
- 150mA LDO
- 3-Channel Current-Sink Driver
- Flexible Power Sequencing
- GPIO and Reset Output
- 3-Output SIMO Extends Battery Life
- 2.7V to 5.5V Input Voltage Range from Single Cell Li-Ion
- 0.8V to 5.25V Output Voltage Range (Table 1)
- Supports >300mA loads (1.8VOUT, 3.7VIN)
- Improves Overall System Efficiency while Reducing Size
- Maintains Regulation without Dropout unlike Traditional Bucks
- Glitchless Buck-Boost Operation
- Low Quiescent Current
- 300nA Shutdown Current
- 5.6µA Operating Current (3 SIMO Channels and LDO On)
- Small Size
- 2.75mm x 2.15mm (0.7mm max heigh) WLP
- 30-Bump, 0.4mm Pitch, 6 x 5 Array
- 16mm2 Total Solution Size
Applications/Uses
- Action Cameras, Wearable/Body Cameras
- Hearables: Bluetooth Headphones and Earbuds
- Internet of Things (IoT) Devices
- Wearables: Fitness, Health, and Activity Monitors
Description
The MAX77640/MAX77641 are a low-IQ power solution for applications where size and efficiency are critical. The device integrates a 3-output single-inductor multiple-output (SIMO) buck-boost regulator, a 150mA LDO, and a 3-channel current-sink driver.
The SIMO operates on an input between 2.7V and 5.5V. The outputs are independently programmable between 0.8V and 5.25V depending on ordering option. Each output is a buck-boost with glitchless transition between buck and boost operation. The SIMO can support >300mA loads (1.8VOUT, 3.7VIN).
The 150mA LDO provides ripple rejection for noise-sensitive applications. The current sinks can be programmed to blink LEDs in custom patterns. The device integrates a power sequencer to control power-up/down order of each output. Default output voltages and sequence order are factory-programmable. An I2C serial interface further configures the device.
The MAX77640/MAX77641 are available in a 30-bump wafer-level package (WLP). Total solution size is 16mm2. For a similar product with a battery charger, refer to the MAX77650.
Design Solution: Choose a Tailored SIMO PMIC for Your Portable Design ›
Simplified Block Diagram
Technical Docs
| Data Sheet | Ultra-Low Power PMIC with 3-Output SIMO, 150mA LDO, and Power Sequencer | Aug 08, 2018 | |
| User Guide | MAX77640/MAX77641 Programmer's Guide | ||
| User Guide | MAX77640/MAX77641 I2C-Compatible Serial Interface Implementation Guide | ||
| Design Solution | Choose a Tailored SIMO PMIC for your Portable Design |
Support & Training
Search our knowledge base for answers to your technical questions.
Filtered SearchOur dedicated team of Applications Engineers are also available to answer your technical questions. Visit our support portal .
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