AAT2315_07 Datasheet, PDF (4/22 Pages) Advanced Analogic Technologies – Dual 600mA Step-Down Converter with Synchronization

AAT2513
Dual 600mA Step-Down
Converter with Synchronization
Electrical Characteristics¹
V_IN = V_CC = 3.6V, T_A = -40°C to +85°C, unless noted otherwise. Typical values are at T_A = 25°C.
Symbol Description
Power Supply
V_CC,
Input Voltage
V_IN1, V_IN2
UVLO Under-Voltage Lockout
I_Q
Quiescent Current
I_SHDN
Shutdown Current
Each Converter
V_FB
Feedback Voltage Tolerance
V_OUT
I_{LX_LEAK}
I_{LX_LEAK}
I_FB
I_LIM
R_DS(ON)H
R_DS(ON)L
ΔV_OUT/
V_OUT/ΔI_OUT
ΔV_OUT/
V_OUT/ΔV_IN
V_FB
F_OSC
Output Voltage Range
LX Reverse Leakage Current
(Fixed)
LX Leakage Current
Feedback Leakage
P-Channel Current Limit
High Side Switch On Resistance
Low Side Switch On Resistance
Load Regulation
Line Regulation
Feedback Threshold Voltage
Accuracy
Oscillator Frequency
T_S
Start-Up Time
Logic
T_SD
T_HYS
V_IL
V_IH
I_EN,
I_MODE/SYNC,
I_PS
Over-Temperature Shutdown
Threshold
Over-Temperature Shutdown
Hysteresis
EN, MODE/SYNC, PS Logic
Low Threshold
EN, MODE/SYNC, PS Logic
High Threshold
Logic Input Current
Conditions
V_CC Rising
V_CC Falling
V_EN1 = V_EN2 = V_CC, No Load
EN1 = EN2 = GND
I_OUT = 0 to 600mA, V_IN = 2.9 to 5.5V
I_OUT = 0 to 450mA, V_IN = 2.7 to 5.5V
V_IN Open, V_LX = 5.5V, EN = GND
V_IN = 5.5V, V_LX = 0 to V_IN
V_FB = 1.0V
Each Converter
I_LOAD = 0 to 600 mA
V_IN = 2.7 to 5.5V, I_LOAD = 100 mA
No Load, T_A = 25°C
From Enable to Output Regulation;
Both Channels
V_IN = V_FB = 5.5V
Min Typ Max Units
2.7
5.5
V
2.7
V
2.35
60 120 µA
1.0 µA
-3.0
-3.0 %
0.6
V_IN
V
1.0 µA
1.0 µA
0.2 µA
1.0
A
0.45
Ω
0.40
Ω
0.002
%/mA
0.125
%/V
0.591 0.600 0.609 V
1.7
MHz
150
µs
140
°C
15
°C
0.6
V
1.4
V
-1.0
1.0 µA
1. The AAT2513 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.
4
2513.2007.04.1.1