Preliminary Datasheet

LP78092

LP78092 – 00 Version 1.0 Feb.-2014

www.lowpowersemi.com

Page 1 of 10

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 8µA.

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 6.5V 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.

Order Information

LP78092

□ □

□

F: Pb-Free

Package Type

QV:TQFN-16

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



8µA Leakage Current in Shutdown



Drainage Charge Current Thermal Regulation

Status Outputs for LED or System Interface



LDO:



Wide Operating Voltage Ranges : 2.5V to 6.0V



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

Applications



MID/Pad



Power Bank



Smart Phone



Bluetooth Applications

Device

Marking Package

Shipping

LP78092QVF

QV:TQFN16 3K/REEL