The MCP16411 is a Boost regulator from the MCP1641X family of low quiescent current boost converters with integrated status indicators and wide input voltage range for a variety of battery powered applications. The regulator provides an automatic input-to-output voltage bypass operation which help in optimizing battery utilization and achieving high efficiency while fresh batteries’ nominal voltage is in the same range with the converter’s output value.
The MCP16411 use an automatic switchover from PWM to PFM mode for light load conditions, to maximize efficiency over a wide range of output current. The device can be powered by either single-cell, two-cell alkaline/NiMH batteries or single-cell Li-Ion/Li-Polymer batteries. A low-voltage designed architecture allows the regulator to start up without high inrush current or output voltage overshoot from a low input voltage. The start-up voltage is easily programmed by a resistive divider connected to the UVLO pin. If the resistive divider is not used, the default start-up voltage will be 0.85V. The 0.8V built-in UVLOSTOP helps prevent deep discharge of the alkaline battery, which may cause battery leakage. An open-drain Low Battery Output (LBO) pin will warn the user to replace the battery if the input voltage ramps down to the programmed UVLOSTART value.
The MCP16411 includes an additional feature to a low-voltage boost converter for safety: Over-temperature Output. Devices, such as personal care products, Bluetooth headsets or toys, will benefit from combined Power Good and Die Overtemperature (PGT) output, which flags a warning signal when the output level drops below 10% of its nominal value or the die temperature exceeds the factory programmed temp (75°C default). Both functions are implemented in the device on the same PGT pin.
The device also incorporates an output auto-discharge feature. While in shutdown, the device will automatically discharge the output capacitor using an internal switch.
Additional Features
Input Voltage Range: 0.8V (after start-up) to 5.25V
Programmable Undervoltage Lockout (UVLO)
Automatic Input-to-Output Bypass Operation
Switching Mode : PWM (500 kHz) / Pulse Skipping
Power Good and Die Over Temperature Output
1A Typical Inductor Peak Current Limit
Up to 96% Efficiency
Adjustable Output Voltage Range
Programmable Low Battery Output
Shutdown State : Output Discharge
Internal Synchronous Rectifier
Internal Compensation
Inrush Current Limiting and Internal Soft Start
Anti-Ringing Control
Thermal Shutdown
Available packages:
10-lead MSOP
10-lead 3 mm x 3 mm TDFN
The MCP16411 is a Boost regulator from the MCP1641X family of low quiescent current boost converters with integrated status indicators and wide input voltage range for a variety of battery powered applications. The regulator provides an automatic input-to-output voltage bypass operation which help in optimizing battery utilization and achieving high efficiency while fresh batteries’ nominal voltage is in the same range with the converter’s output value.
The MCP16411 use an automatic switchover from PWM to PFM mode for light load conditions, to maximize efficiency over a wide range of output current. The device can be powered by either single-cell, two-cell alkaline/NiMH batteries or single-cell Li-Ion/Li-Polymer batteries. A low-voltage designed architecture allows the regulator to start up without high inrush current or output voltage overshoot from a low input voltage. The start-up voltage is easily programmed by a resistive divider connected to the UVLO pin. If the resistive divider is not used, the default start-up voltage will be 0.85V. The 0.8V built-in UVLOSTOP helps prevent deep discharge of the alkaline battery, which may cause battery leakage. An open-drain Low Battery Output (LBO) pin will warn the user to replace the battery if the input voltage ramps down to the programmed UVLOSTART value.
The MCP16411 includes an additional feature to a low-voltage boost converter for safety: Over-temperature Output. Devices, such as personal care products, Bluetooth headsets or toys, will benefit from combined Power Good and Die Overtemperature (PGT) output, which flags a warning signal when the output level drops below 10% of its nominal value or the die temperature exceeds the factory programmed temp (75°C default). Both functions are implemented in the device on the same PGT pin.
The device also incorporates an output auto-discharge feature. While in shutdown, the device will automatically discharge the output capacitor using an internal switch.
Additional Features
- Input Voltage Range: 0.8V (after start-up) to 5.25V
- Programmable Undervoltage Lockout (UVLO)
- Automatic Input-to-Output Bypass Operation
- Switching Mode : PWM (500 kHz) / Pulse Skipping
- Power Good and Die Over Temperature Output
- 1A Typical Inductor Peak Current Limit
- Up to 96% Efficiency
- Adjustable Output Voltage Range
- Programmable Low Battery Output
- Shutdown State : Output Discharge
- Internal Synchronous Rectifier
- Internal Compensation
- Inrush Current Limiting and Internal Soft Start
- Anti-Ringing Control
- Thermal Shutdown
- Available packages:
- 10-lead MSOP
- 10-lead 3 mm x 3 mm TDFN
