MAX17221.5µA IQ, Step-Up DC-DC Converters in TSOT and µDFN | Integrated Circuits (ICs) | 4 | Active | The MAX1722/MAX1723/MAX1724 compact, high-efficiency, step-up DC-DC converters are available in tiny, 5-pin TSOT packages. They feature an extremely low 1.5µA quiescent supply current to ensure the highest possible light-load efficiency. Optimized for operation from one to two alkaline or nickel-metal-hydride (NiMH) cells, or a single Li+ cell, these devices are ideal for applications where extremely low quiescent current and ultra-small size are critical.Built-in synchronous rectification significantly improves efficiency and reduces size and cost by eliminating the need for an external Schottky diode. All three devices feature a 0.5Ω N-channel power switch. The MAX1722/MAX1724 also feature proprietary noise-reduction circuitry, which suppresses electromagnetic interference (EMI) caused by the inductor in many step-up applications. The family offers different combinations of fixed or adjustable outputs, shutdown, and EMI reduction (seeSelector Guide).ApplicationsDigital Still CamerasLow-Power Handheld InstrumentsMP3 PlayersPagersPDAs and Other Handheld DevicesPersonal Medical DevicesRemote ControlsRemote Wireless TransmittersSingle-Cell Battery-Powered Devices |
| Evaluation Boards | 5 | Active | |
| Development Boards, Kits, Programmers | 4 | Active | |
MAX17222400mV to 5.5V Input, nanoPower Synchronous Boost Converter with True Shutdown | DC/DC & AC/DC (Off-Line) SMPS Evaluation Boards | 6 | Active | The MAX17220–MAX17225 is a family of ultra-low quiescent current boost (step-up) DC-DC converters with a 225mA/0.5A/1A peak inductor current limit and True Shutdown™. True Shutdown disconnects the output from the input with no forward or reverse current. The output voltage is selectable using a single standard 1% resistor. The 225mA (MAX17220/MAX17221), 500mA (MAX17222/MAX17223), and 1A (MAX17224/MAX17225) peak inductor current limits allow flexibility when choosing inductors. The MAX17220/MAX17222/MAX17224 versions have post-startup enable transient protection (ETP), allowing the output to remain regulated for input voltages down to 400mV, depending on load current. The MAX17220–MAX17225 offer ultra-low quiescent current, small total solution size, and high efficiency throughout the entire load range. The MAX17220–MAX17225 are ideal for battery applications where long battery life is a must.ApplicationsBattery-Powered Medical EquipmentLow-Power Wireless Communication ProductsOptical Heart-Rate Monitoring (OHRM) LED DriversPrimary-Cell Portable SystemsSecondary-Cell Portable SystemsSupercapacitor Backup for Real-Time Clock (RTC)/Alarm BuzzersTiny, Low-Power IoT SensorsWearable Devices |
MAX17223400mV to 5.5V Input, nanoPower Synchronous Boost Converter with True Shutdown | DC/DC & AC/DC (Off-Line) SMPS Evaluation Boards | 6 | Active | The MAX17220–MAX17225 is a family of ultra-low quiescent current boost (step-up) DC-DC converters with a 225mA/0.5A/1A peak inductor current limit and True Shutdown™. True Shutdown disconnects the output from the input with no forward or reverse current. The output voltage is selectable using a single standard 1% resistor. The 225mA (MAX17220/MAX17221), 500mA (MAX17222/MAX17223), and 1A (MAX17224/MAX17225) peak inductor current limits allow flexibility when choosing inductors. The MAX17220/MAX17222/MAX17224 versions have post-startup enable transient protection (ETP), allowing the output to remain regulated for input voltages down to 400mV, depending on load current. The MAX17220–MAX17225 offer ultra-low quiescent current, small total solution size, and high efficiency throughout the entire load range. The MAX17220–MAX17225 are ideal for battery applications where long battery life is a must.ApplicationsBattery-Powered Medical EquipmentLow-Power Wireless Communication ProductsOptical Heart-Rate Monitoring (OHRM) LED DriversPrimary-Cell Portable SystemsSecondary-Cell Portable SystemsSupercapacitor Backup for Real-Time Clock (RTC)/Alarm BuzzersTiny, Low-Power IoT SensorsWearable Devices |
MAX17224400mV to 5.5V Input, nanoPower Synchronous Boost Converter with True Shutdown | Development Boards, Kits, Programmers | 5 | Active | The MAX17220–MAX17225 is a family of ultra-low quiescent current boost (step-up) DC-DC converters with a 225mA/0.5A/1A peak inductor current limit and True Shutdown™. True Shutdown disconnects the output from the input with no forward or reverse current. The output voltage is selectable using a single standard 1% resistor. The 225mA (MAX17220/MAX17221), 500mA (MAX17222/MAX17223), and 1A (MAX17224/MAX17225) peak inductor current limits allow flexibility when choosing inductors. The MAX17220/MAX17222/MAX17224 versions have post-startup enable transient protection (ETP), allowing the output to remain regulated for input voltages down to 400mV, depending on load current. The MAX17220–MAX17225 offer ultra-low quiescent current, small total solution size, and high efficiency throughout the entire load range. The MAX17220–MAX17225 are ideal for battery applications where long battery life is a must.ApplicationsBattery-Powered Medical EquipmentLow-Power Wireless Communication ProductsOptical Heart-Rate Monitoring (OHRM) LED DriversPrimary-Cell Portable SystemsSecondary-Cell Portable SystemsSupercapacitor Backup for Real-Time Clock (RTC)/Alarm BuzzersTiny, Low-Power IoT SensorsWearable Devices |
MAX17225400mV to 5.5V Input, nanoPower Synchronous Boost Converter with True Shutdown | Development Boards, Kits, Programmers | 7 | Active | The MAX17220–MAX17225 is a family of ultra-low quiescent current boost (step-up) DC-DC converters with a 225mA/0.5A/1A peak inductor current limit and True Shutdown™. True Shutdown disconnects the output from the input with no forward or reverse current. The output voltage is selectable using a single standard 1% resistor. The 225mA (MAX17220/MAX17221), 500mA (MAX17222/MAX17223), and 1A (MAX17224/MAX17225) peak inductor current limits allow flexibility when choosing inductors. The MAX17220/MAX17222/MAX17224 versions have post-startup enable transient protection (ETP), allowing the output to remain regulated for input voltages down to 400mV, depending on load current. The MAX17220–MAX17225 offer ultra-low quiescent current, small total solution size, and high efficiency throughout the entire load range. The MAX17220–MAX17225 are ideal for battery applications where long battery life is a must.ApplicationsBattery-Powered Medical EquipmentLow-Power Wireless Communication ProductsOptical Heart-Rate Monitoring (OHRM) LED DriversPrimary-Cell Portable SystemsSecondary-Cell Portable SystemsSupercapacitor Backup for Real-Time Clock (RTC)/Alarm BuzzersTiny, Low-Power IoT SensorsWearable Devices |
| DC/DC & AC/DC (Off-Line) SMPS Evaluation Boards | 12 | Active | |
MAX17227J400mV to 5.5V Input, 500mA nanoPower Boost Converter with Short-Circuit Protection and Automatic Pass-Through Mode | Power Management (PMIC) | 1 | Unknown | The MAX17227J is a nanoPower boost converter capable of delivering a load up to 500mA peak inductor current and offering automatic pass-through operation, True Shutdown™, cycle-by-cycle inductor current limit, short-circuit, and thermal-protection features. The MAX17227J offers ultra-low quiescent current, small total solution size, and high efficiency throughout the load and line range. The MAX17227J is ideal for battery-powered applications where long battery life is a must and high efficiency is required at all power levels.The MAX17227J utilizes an adaptive on-time, pulse-frequency-modulation (PFM) control scheme that consumes ultra-low quiescent current. The MAX17227J features True Shutdown mode, where the output disconnects from the input with no forward or reverse current. The active discharge resistor feature pulls the charge from the output capacitor.The MAX17227J is offered in space-saving and cost-effective 1.58mm x 0.89mm, 6-bump WLP (3 x 2, 0.4mm pitch) and 2mm x 2mm, 8-pin TDFN packages. The operating temperature range is from -40°C to +125°C.ApplicationsMedicalClinical InstrumentationBattery-Powered Medical EquipmentIndustrialEmergency LightingIoT SensorsConsumerWi-Fi® ModuleNear-Band IoTWearable Devices |
| Integrated Circuits (ICs) | 4 | Active | |
