High Efficiency, 1.5A Switching Battery Charger with PowerPathTM Management

Our latest monolithic battery charger/USB power manager allows up to 700mA battery charge current from a 500mA USBport or up to 1.5A from an AC adapter, providing faster charge times without the heat of linear chargers. In addition tohigh efficiency operation, the LTC4088’s “instant-on” feature allows the end product to operate immediately when pluggedin, regardless of the battery’s state of charge or even without a battery. See the table below for the battery charger/USBpower manager that’s right for your application.
 Li-Ion/Polymer PowerPath Managers
Part No. PowerPath Topology Input Voltage Onboard Charge Termination Package Comments
LTC4088 Switching 4.35 to 5.5V(7V max) Timer with C/x Indication 3mm x 4mm DFN-14 Bat-Track, Programmable Input ILIM
Maximizes Available Power from USB Port
LTC4066 Linear 4.35 to 5.5V (7V max) Timer with C/x Indication 4mm x 4mm QFN-24 Integrated 50mΩ Low Loss Ideal Diode
LTC4085 Linear 4.35 to 5.5V (7V max) Timer with C/10 Indication 3mm x 4mm DFN-14 Integrated 200mΩ Low Loss
Ideal Diode (<50mΩ Capable Option)
LTC4089 Linear 4.35 to 36V (40V max) Timer with C/10 Indication 3mm x 6mm DFN-22 Bat-Track, "Instant-ON" Operation,
High Voltage Input Switching,
with Current Limiting from USB
LTC4067 Linear 4.25 to 5.5V (13V OVP) Timer with C/10 Indication 3mm x 4mm DFN-12 Up to 1.25A Charge Current,
Integrated 200mΩ Low Loss Ideal Diode
LTC4090 Linear 4.35 to 36V (60V max) Timer with C/10 Indication 3mm x 6mm DFN-22 Bat-Track, "Instant-ON" Operation,
High Voltage Input Switching,
with Current Limiting from USB