 English |
|
|
|
|
|
|
|
| AAT2505 Datasheet, PDF (4/26 Pages) Advanced Analogic Technologies – Dual Channel, Step-Down Converter/Linear Regulator | |||
| |||
| ◁ |
AAT2505
Dual Channel, Step-Down
Converter/Linear Regulator
Electrical Characteristics1
VIN = VLDO = VOUT(NOM) + 1V for VOUT options greater than 1.5V. VIN = VLDO = 2.5V for VOUT ⤠1.5V. IOUT = 1mA,
COUT = 2.2µF, CIN = 1µF, TA = -40°C to +85°C, unless otherwise noted. Typical values are TA = 25°C.
Symbol
LDO
VOUT
Description
Output Voltage Tolerance
VIN
VDO
ÎVOUT/
VOUT* VIN
ÎVOUT(Line)
ÎVOUT(Load)
IOUT
ISC
IQLDO
VPOK
VPOKHYS
VPOK(OL)
IPOK
ISHDN
Input Voltage
Dropout Voltage3, 4
Line Regulation
Dynamic Line Regulation
Dynamic Load Regulation
Output Current
Short-Circuit Current
LDO Quiescent Current
POK Trip Threshold
POK Hysteresis
POK Output Voltage Low
POK Output Leakage Current
Shutdown Current
PSRR Power Supply Rejection Ratio
TSD
THYS
eN
TC
Over-Temperature Shutdown
Threshold
Over-Temperature Shutdown
Hysteresis
Output Noise
Output Voltage Temperature
Coefficient
Conditions
Min Typ Max Units
IOUT = 1mA TA = 25°C
-1.5
to 300mA TA = -40°C to +85°C -2.5
1.5
2.5
%
VOUT +
VDO2
5.5
V
IOUT = 300mA
400 600
mV
VIN = VOUT + 1V to 5V
0.09
%/V
IOUT = 300mA, VIN = VOUT + 1V
to VOUT + 2V, TR/TF = 2µs
IOUT = 1mA to 300mA, TR <5µs
VOUT > 1.3V
VOUT < 0.4V
VIN = 5V, No Load, ENLDO = VIN
VOUT Rising, TA = 25°C
ISINK = 1mA
VPOK < 5.5V, VOUT in Regulation
VIN = 5V; ENLDO = GND,
EN = SGND = PGND
2.5
mV
60
mV
300
mA
1
A
70 125
µA
90
94 98 % of VOUT
1.0
% of VOUT
0.4
V
1.0
µA
1.0
µA
1kHz
65
IOUT = 10mA
10kHz
45
dB
1MHz
42
145
°C
15
°C
250
µVRMS
22
ppm/°C
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.
2. To calculate the minimum LDO input voltage, use the following equation: VIN(MIN) = VOUT(MAX) + VDO(MAX), as long as VIN ⥠2.5V.
3. For VOUT < 2.1V, VDO = 2.5 - VOUT.
4. VDO is defined as VIN - VOUT when VOUT is 98% of nominal.
4
2505.2006.06.1.1
|
▷ |
German
Russian
Spanish
Italian
Polish
Chinese
Japanese
Korean
French
Portuguese