AAT2845 Datasheet, PDF (5/19 Pages) Advanced Analogic Technologies – Four-Channel Backlight Driver with Dual LDOs

AAT2845
Four-Channel Backlight Driver with Dual LDOs
Electrical Characteristics¹
C_IN = C_O1 = C_O2 = 2.2µF, C₁ = C₂ = 1.0µF, C_BP = 0.1µF; T_A = 25°C, unless otherwise noted. Typical values are
at T_A = 25°C and V_IN = 3.6V.
Symbol
LDOs
Description
I_IN
IN Operating Current
V_FB
V_DO
ΔV_OUT/
V_OUT*ΔV_IN
PSRR
Feedback Voltage
Dropout Voltage
Line Regulation
Power Supply Rejection Ratio
LDO Logic Control
V_IL
EN/SET, ENLDO Pins Logic
Low Threshold
V_IH
EN/SET, ENLDO Pins Logic High
Threshold
Conditions
ENLDO = IN, EN/SET = AGND,
No Load
I_OUT = 1mA to 200mA
I_OUT = 150mA
V_IN = (V_OUT + 1V) to 5.0V
I_OUT =10mA, 1kHz
Min Typ Max Units
80 150 µA
1.17 1.2 1.23 V
150 300 mV
0.09
%/V
50
dB
0.4
V
1.4
V
1. The AAT2845 is guaranteed to meet performance specifications over the -40°C to +85°C operating temperature range and is assured
by design, characterization, and correlation with statistical process controls.
2845.2006.12.1.0
5