MIC708uP Supervisor, Active High & Low Resets, 4.4V VTH | PMIC | 13 | Active | The MIC705, MIC706, MIC707, and MIC708 areinexpensive microprocessor supervisory circuits that monitor power supplies in microprocessor-based systems. The circuit functions include a watchdog timer, microprocessor reset, power-failure warning, and a debounced manual reset input.
The MIC705 and MIC706 offer a watchdog timer function while the MIC707 and MIC708 have an active-high reset output in addition to the active-low reset output.
Supply voltage monitor levels of 4.65V and 4.4V are available. The MIC705 and MIC707 have a nominal reset threshold level of 4.65V while the MIC706 and MIC708 have a 4.4V nominal reset threshold level. When the supply voltage drops below the respective reset threshold level, /RESET is asserted. |
| Integrated Circuits (ICs) | 2 | Obsolete | |
| Integrated Circuits (ICs) | 2 | Active | |
| Comparators | 2 | Active | |
MIC7300500kHz, Single Operational Amplifier | Linear | 3 | Active | The MIC7300 is a high-performance CMOS operational amplifier featuring rail-to-rail input and output with strong output drive capability. It is able to source and sink in excess of 80mA into large capacitive loads.
The input common-mode range extends beyond the rails by 300mV, and the output voltage typically swings to within 150µV of both rails when driving a 100kΩ load.
The amplifier operates from 2.2V to 10V and is fully specified at 2.2V, 3V, 5V, and 10V. Gain bandwidth and slew rate are 500kHz and 0.5V/µs, respectively.
The MIC7300 is available in Micrel's IttyBitty® SOT-23-5 package for space-conscious circuits and in high-power MM8® 8-lead MSOP for improved heat dissipation in higher power applications. |
| Interface | 3 | Obsolete | |
MIC7400Configurable PMIC, Five-Channel Buck Regulator Plus One-Boost w/ HyperLight Load | Voltage Regulators - DC DC Switching Regulators | 2 | Active | The MIC7400 is a powerful, highly-integrated, configurable, power-management IC (PMIC) featuring five synchronous buck regulators, one boost regulator, and high-speed I2C interface with an internal EEPROM.The device offers two distinct modes of operation "stand-by mode" and "normal mode" intended to provide an energy optimized solution suitable for portable handheld and infotainment applications.In normal mode, the programmable switching converters can be configured to support a variety of start-up sequencing, timing, soft-start ramp, output voltage levels, current limit levels, and output discharge for each channel.In stand-by mode, the PMIC can be configured in a low power state by either disabling an output or by changing the output voltage to a lower level. Independent exit from stand-by mode can be achieved either by I2C communication or the external STBY pin.
The device has five synchronous buck regulators with high-speed adaptive on-time control, supporting even the challenging ultra-fast transient requirement for Core supplies. One boost regulator provides a flash-memory programming supply that delivers up to 200mA of output current. The boost is equipped with an output disconnect switch that opens if a short-to-ground fault is detected.An internal EEPROM enables a single-chip solution across many platforms by allowing the designer to customize the PMIC for their design. Modifications can be made without the need to re-approve a new PMIC, saving valuable design resources and time.All switchers provide light-load efficiency with HyperLight Load® mode for buck, and PFM mode for boost. An additional benefit of this proprietary architecture is very-low output ripple voltage throughout the entire load range with the use of small output capacitors. The MIC7400 supplies are designed for use with a small inductor (down to 0.47μH for buck, 1.5μH for boost), and an output capacitor as small as 10μF for buck, enabling a total solution size of 15mm × 15mm and less than 1mm height. |
MIC7401Configurable PMIC, Five-Channel Buck Regulator Plus One-Boost w/ HyperLight Load | Power Management (PMIC) | 1 | Active | The MIC7401 is a powerful, highly integrated, configurable, power-management IC (PMIC) featuring five synchronous buck regulators, one boost regulator, and a high-speed I2C interface with an internal EEPROM.The device offers two distinct modes of operation 'stand-by mode' and 'normal mode' intended to provide an energy-optimized solution suitable for portable handheld, and infotainment applications.In normal mode, the programmable switching converters can be configured to support a variety of features, including start-up sequencing, timing, soft-start ramp, output voltage levels, current-limit levels, and output discharge for each channel. In stand-by mode the PMIC can be configured in a low power state by either disabling an output or by changing the output voltage to a lower level. Independent exit from stand-by mode can be achieved either by I2C communication or by the external STBY pin.
The device has five synchronous buck regulators with high-speed adaptive on-time control that supports even the most challenging ultra-fast transient requirement for core supplies. One boost regulator provides a flash-memory programming supply that delivers up to 200mA of output current. The boost is equipped with an output disconnect switch that opens if a short-to-ground fault is detected.An internal EEPROM enables a single-chip solution across many platforms by allowing the designer to customize the PMIC for their design. Modifications can be made without the need to re-approve a new PMIC, saving valuable design resources and time. All switchers provide light-load efficiency with HyperLight Load® mode for buck and PFM mode for boost. An additional benefit of this proprietary architecture is very-low output ripple voltage throughout the entire load range with the use of small output capacitors. The MIC7401 is designed for use with a small inductors (down to 0.47µH for buck, 1.5µH for boost), and an output capacitor as small as 10µF for buck, enabling a total solution size of 12mm x 8.5mm and less than 1mm height on the top layer. |
MIC79050Simple Lithium-Ion Battery Charger | PMIC | 9 | Active | The MIC79050 is a simple single-cell Lithium-Ion battery charger. It includes an on-chip pass transistor for high precision charging. Featuring ultra-high precision (±0.75% over the Li-Ion battery charging temperature range) and zero off-mode current state, the MIC79050 provides a very simple, cost effective solution for charging Lithium-Ion battery.
Other features of the MIC79050 include current limit and thermal shutdown protection. In the event the input voltage to the charger is disconnected, the MIC79050 also provides minimal reverse-current and reversed-battery protection.
The MIC79050 is a fixed 4.2V device and comes in the thermally-enhanced MSOP-8, SOIC-8, and SOT-223 packages. The 8-pin versions also come equipped with enable and feedback inputs. All versions are specified over the temperature range of -40°C to +125°C. |
| Integrated Circuits (ICs) | 2 | Unknown | |
