PMU

LP78092-PMU
LDOFunction:
LDOFeatures:
600Lout(mA):
YesEN:
270lq(uA):
2.5-6.5Input Voltage(V):
ADJ.Vout(V):
This chip is used for small operation system which including 1A charger and 600mA LDO of two channel Special Features:
TQFN-16Package:


1A Charge And Dual Channel Ultra-Fast CMOS LDO Regulator



General Description

The LP78092 is a PMIC,which has 1ch Charger and 2ch LDO with TQFN16 package. Its charger is a complete constant-current constant voltage linear charger for single cell lithium-ion batteries. No external sense resistor is needed, and no blocking diode is required due to the internal MOSFET architecture. Thermal feedback regulates the charge current to limit the die temperature during high power operation or high ambient temperature. The charge voltage is fixed at 4.2V, and the charge current can be ISET rammed externally with a single resistor. The charger automatically terminates the charge cycle when the charge current drops to 1/10th the ISET rammed value after the final float voltage is reached. When the input supply (wall adapter or USB supply) is removed, the LP78092 automatically enters a low current state, dropping the battery drain current to less than 1μA. Other features include charge current monitor, under voltage lockout, automatic recharge and a status pin to indicate charge termination and the presence of an input voltage. The LP78092 contains a dual channel, low noise, and low dropout regulator sourcing up to 600mA at each channel. The range of output voltage is from 0.81V to Vin by operating from 2.5V to 6V input. LP78092 offers 2% accuracy, extremely low dropout voltage (280mV @ 400mA), and extremely low ground current, only 75μA per LDO. The shutdown current is near zero current which is suitable for battery-power devices. Other features include current limiting, over temperature, output short circuit protection.
 


Applications
 

 MID/Pad
 Power Bank
 Smart Phone
 Bluetooth Applications

 


Features
 

 Charger:
 Programmable Charge Current Up to 1000mA
 No MOSFET, Sense Resistor or Blocking Diode Required
 Constant-Current/Constant-Voltage Operation with Thermal Regulation to Maximize Charge Rate Without Risk of Overheating
 Charges Single Cell Li-Ion Batteries Directly from USB Port
 1μA Leakage Current in Shutdown
 Drainage Charge Current Thermal Regulation Status Outputs for LED or System Interface
 LDO:
 Wide Operating Voltage Ranges : 2.5V to 6V
 Low-Noise for RF Applications
 High PSRR: -68dB at 1kHz
 No Noise Bypass Capacitor Required
 Dual LDO Outputs (280mV/400mA)
 Ultra-low Quiescent Current 75uA
 Built-in Short-Circuit Protection
 Consumption Available in TQFN-16 Package
 RoHS Compliant and 100% Lead (Pb)-Free
 

Marking Information
 

Please see specification. 
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We will send a copy to you as fast as we can.
 









 

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