AAT2500 Analogic Corporation, AAT2500 Datasheet - Page 5

• Manufacturer Part Number: AAT2500
• Manufacturer: Analogic Corporation

Electrical Characteristics
1. The AAT2500 is guaranteed to meet performance specifications over the -40°C to +85°C operating temperature range and is assured
2. For adjustable version with higher than 2.5V output, please consult your AnalogicTech representative.
2500.2005.08.1.9
Buck Converter Typical values are T
Logic Signals
Symbol
by design, characterization, and correlation with statistical process controls.
R
R
V
I
I
V
V
V
LXLK, R
QBUCK
I
DS(ON)H
I
V
V
DS(ON)L
F
T
I
SHDN
Linereg
EN(H)
V
R
T
I
LXLK
V
EN(H)
UVLO
I
EN(L)
OSC
OUT
OUT
LIM
HYS
FB
SD
FB
FB
IN
Description
Input Voltage
UVLO Threshold
Output Voltage Tolerance
Output Voltage Range
Step-Down Converter
Quiescent Current
Shutdown Current
P-Channel Current Limit
High Side Switch On
Resistance
Low Side Switch On
Resistance
LX Leakage Current
LX Reverse Leakage Current
(fixed)
Line Regulation
FB Threshold Voltage
Accuracy
FB Leakage Current
FB Impedance
Oscillator Frequency
Over-Temperature Shutdown
Threshold
Over-Temperature Shutdown
Hysteresis
Enable Threshold Low
Enable Threshold High
Leakage Current
A
= 25°C, V
1
Conditions
V
Hysteresis
V
I
V
Fixed Output Version
Adjustable Output Version
ENLDO = GND, No Load,
0.6V Adjustable Model
EN = SGND = PGND, ENLDO = GND
V
EN = SGND = PGND
V
EN = SGND = PGND
V
0.6V Output, No Load, T
0.6V Output
>0.6V Output
T
OUT
A
IN
IN
IN
IN
IN
IN
1MHz Step-Down Converter/LDO Regulator
= 25°C
IN
Rising
Falling
= 2.7V to 5.5V
= 5.5V, V
= Open, V
= 2.7V to 5.5V
= 0 to 400mA,
= V
CC
= V
LX
LX
= 0 - V
p
= 5.5V,
= 3.6V.
IN
A
2
= 25°C
Min
-3.0
600
597
250
2.7
1.8
0.6
0.6
0.7
1.5
1.0
Typ Max
0.45
100
600
140
0.4
1.0
25
15
AAT2500
+3.0
615
5.5
2.6
4.0
2.5
1.0
1.0
1.0
0.2
0.2
1.5
0.6
1.0
50
Units
MHz
%/V
mV
mA
mV
µA
µA
µA
µA
kΩ
µA
µA
°C
°C
%
Ω
Ω
V
V
V
V
V
V
5