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| AAT2505 Datasheet, PDF (5/26 Pages) Advanced Analogic Technologies – Dual Channel, Step-Down Converter/Linear Regulator | |||
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AAT2505
Dual Channel, Step-Down
Converter/Linear Regulator
Electrical Characteristics1
IOUT = 600mA; typical values are TA = 25°C, VIN = VCC = VP = 3.6V.
Symbol Description
Buck Converter
VIN
Input Voltage
VUVLO
UVLO Threshold
VOUT
VOUT
IQBUCK
Output Voltage Tolerance
Output Voltage Range
Step-Down Converter
Quiescent Current
ISHDN
Shutdown Current
ILIM
RDS(ON)H
RDS(ON)L
P-Channel Current Limit
High Side Switch On Resistance
Low Side Switch On Resistance
ILXLK
LX Leakage Current
ÎVLinereg
Line Regulation
VFB
FB Threshold Voltage Accuracy
IFB
FB Leakage Current
RFB
FB Impedance
TS
Start-Up Time
FOSC
TSD
Oscillator Frequency
Over-Temperature Shutdown
Threshold
THYS
Over-Temperature Shutdown
Hysteresis
Logic Signals
VEN(L)
VEN(H)
IEN(H)
Enable Threshold Low
Enable Threshold High
Leakage Current
Conditions
VIN Rising
Hysteresis
VIN Falling
IOUT = 0 to 600mA,
VIN = 2.7V to 5.5V
ENLDO = GND, No Load,
0.6V Adjustable Version
EN = SGND = PGND,
ENLDO = GND
VIN = 5.5V, VLX = 0 to VIN,
EN = SGND = PGND
VIN = 2.7V to 5.5V
0.6V Output, No Load,
TA = 25°C
0.6V Output
> 0.6V Output
From Enable to Output
Regulation
TA = 25°C
Min Typ Max Units
2.7
5.5
V
2.7
V
100
mV
1.8
V
-3.0
3.0
%
0.6
VIN
V
27
70
µA
1.0 µA
800
mA
0.45
Ω
0.40
Ω
1.0 µA
0.1
%/V
591 600 609 mV
0.2 µA
250
kΩ
150
µs
1.0 1.4 2.0 MHz
140
°C
15
°C
0.6
V
1.4
V
-1.0
1.0 µA
1. The AAT2505 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.
2505.2006.06.1.1
5
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