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TPS61282A Datasheet(PDF) 3 Page - Texas Instruments |
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TPS61282A Datasheet(HTML) 3 Page - Texas Instruments |
3 / 54 page TPS61280A, TPS61281A, TPS61282A www.ti.com SLVSCG9A – MAY 2014 – REVISED SEPTEMBER 2014 6 Device Comparison Table DEVICE PART NUMBER(1) SPECIFIC FEATURES DC/DC boost / bypass threshold = 3.15V (Vsel = L) I2C Control Interface TPS61280A DC/DC boost / bypass threshold = 3.35V (Vsel = H) User Prog. E2PROM Settings Valley inductor current limit = 3A DC/DC boost / bypass threshold = 3.15V (Vsel = L) TPS61281A Simple Logic Control Interface DC/DC boost / bypass threshold = 3.35V (Vsel = H) Valley inductor current limit = 3A DC/DC boost / bypass threshold = 3.3V (Vsel = L) TPS61282A Simple Logic Control Interface DC/DC boost / bypass threshold = 3.5V (Vsel = H) Valley inductor current limit = 4A (1) The 'A’ version has lower ripple and overshoot, supports Forced PWM at startup but with a 0.4 μA higher IQ. 7 Description (continued) TPS6128xA device supports more than 4A pulsed load current even from a deeply discharged battery. In this mode of operation, the TPS6128xA enables the utilization of the full battery capacity: A high battery-cut-off voltage originated by powered components with a high minimum input voltage is overcome; new battery chemistries can be fully discharged; high current pulses forcing the system into shutdown are buffered by the device seamlessly transitioning between boost and by-pass mode back and forth. This has significant impact on the battery on-time and translates into either a longer use-time and better user- experience at an equal battery capacity or into reduced battery costs at similar use-times. The TPS6128xA offers a small solution size (< 20mm2) due to minimum amount of external components, enabling the use of small inductors and input capacitors, available as a 16-pin chip-scale package (CSP). The TPS6128xA operates in synchronous, 2.3MHz boost mode and enters power-save mode operation (PFM) at light load currents to maintain high efficiency over the entire load current range. Copyright © 2014, Texas Instruments Incorporated Submit Documentation Feedback 3 Product Folder Links: TPS61280A TPS61281A TPS61282A |
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