AAT2504_08 Datasheet, PDF (4/21 Pages) Advanced Analogic Technologies – Adjustable 3-Channel Regulator

SystemPower^TM
PRODUCT DATASHEET
AAT2504178
Adjustable 3-Channel Regulator
Electrical Characteristics¹
V_IN = 3.6V; T_A = -40°C to +85°C, unless otherwise noted. Typical values are T_A = 25°C.
Symbol Description
Bias Power Supply
I_Q
I_SHDN
Quiescent Current
Shutdown Current
UVLO
Under-Voltage Lockout Voltage
LDOA, LDOB
V_LDO
Input Voltage
V_OUT
Output Voltage Tolerance
V_FB
V_DO
ΔV_LINEREG/V_IN
V_EN(L)
V_EN(H)
I_OUT
I_SHT
T_SD
T_HYS
LDOA
Feedback Voltage
Dropout Voltage^{2, 3}
Line Regulation⁴
Enable Threshold Low
Enable Threshold High
Output Current
Shutdown Current
Over-Temperature Shutdown Threshold
Over-Temperature Shutdown Hysteresis
V_POK
Power-OK Trip Threshold
V_POKHYS
Power-OK Hysteresis
V_POK(LO)
Power-OK Output Voltage Low
I_POK
Power-OK Output Leakage Current
Step-Down Converter
V_IN
V_OUT
V_OUT
V_FB
I_SHDN
I_{LX_LEAK}
I_FB
I_LIM
R_DS(ON)H
R_DS(ON)L
ΔV_LOADREG/V_OUT
ΔV_LINEREG/V_IN
F_OSC
T_SD
Input Voltage
Output Voltage Tolerance
V_OUT Programmable Range
Feedback Threshold Voltage
Shutdown Current
LX Leakage Current
Feedback Leakage
Current Limit
High Side Switch On Resistance
Low Side Switch On Resistance
Load Regulation
Line Regulation
Oscillator Frequency
Over-Temperature Shutdown Threshold
T_HYS
Over-Temperature Shutdown Hysteresis
V_EN(L)
V_EN(H)
I_EN
Enable Threshold Low
Enable Threshold High
EN Input Leakage
Conditions
ENA = ENB = EN = V_IN; I_LOAD = 0
ENA = ENB = EN = GND
V_IN Rising
Hysteresis
V_IN Falling
I_OUT = 1mA
to 300mA
T_A = 25°C
T_A = -40°C to +85°C
I_OUT = 300mA
V_IN = V_OUT + 1 to 5.0V
V_{LDO (MIN)} = 2.5
V_IN = 5V
V_OUT Rising, T_A = 25°C
I_SINK = 1mA
V_POK <5.5V, V_OUT in Regulation
I_OUT = 0 to 800mA; V_IN = 2.7V to 5.5V
EN = GND
V_IN = 5.5, V_LX = 0 - V_IN
V_FB = 1.0V
I_LOAD = 10 to 800mA
V_EN = 5V, V_IN = 5V
Min
1.7
1.62
-1.5
-2.5
0.593
1.4
300
80
2.7
-3.0
0.9
0.891
1.6
1.4
-1.0
Typ
80
250
0.6
140
15
90
1.0
0.9
280
160
0.2
0.2
2.0
140
15
Max
145
1.0
2.2
5.5
1.5
2.5
0.607
300
0.09
0.6
1.0
98
0.4
1.0
5.5
3.0
V_IN
0.909
1.0
1.0
0.2
1.2
2.4
0.6
1.0
Units
μA
μA
V
mV
V
V
%
V
mV
%/V
V
V
mA
μA
°C
°C
% of V_OUT
% of V_OUT
V
μA
V
%
V
V
μA
μA
μA
A
mΩ
mΩ
%
%/V
MHz
°C
°C
V
V
μA
1. The AAT2504 is guaranteed to meet performance specifications over the -40°C to +85°C operating temperature range and is assured by design, characterization, and correla-
tion with statistical process controls.
2. VDO is defined as VIN - VOUT when VOUT is 98% of nominal.
3. For VOUT < 1.5V, VDO = 1.8 - VOUT.
4. CIN = 10μF.
4
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2504.2008.02.1.2