PRODUCT DATASHEET
AAT3183
ChargePump
TM
300mA Inductorless Step-Down Converter
Electrical Characteristics
1
V
IN
= 3.6V, C
IN
= C
FLY
= 1.0µF, C
OUT
= 4.7µF, T
A
= -40°C to +85°C, unless otherwise noted. Typical values are at T
A
=
25°C.
Symbol
V
IN
V
OUT
V
UVLO
I
OUT
I
Q
Description
Input Voltage
Output Voltage Accuracy
Under-Voltage Lockout (UVLO)
Output Current
Quiescent Current
Shutdown Current
Output Voltage Ripple
Line Regulation
Load Regulation
Soft-Start Time
Clock Frequency
Enable Threshold Low
Enable Threshold High
EN Input Leakage
Output Impedance
Over-Temperature Shutdown Threshold
Over-Temperature Shutdown Hysteresis
Conditions
No Load, T
A
= 25°C
No Load
V
IN
Rising
Hysteresis
V
IN
Falling
V
EN
= V
IN
, No Load
V
EN
= GND
I
OUT
= 300mA
I
OUT
= 150mA
I
OUT
= 100mA
I
OUT
= 10mA
3.2V
≤
V
IN
≤
5.5V, I
OUT
= 50mA
0mA
≤
I
OUT
≤
150mA
I
OUT
= 300mA
Min
2.7
-1
-2
Typ
Max
5.5
+1
+2
2
Units
V
%
V
1.5
0.15
1.3
35
12
16
17
17
2.9
0.053
100
2
300
60
1
mA
µA
V
PP
ΔV
OUT
/ΔV
IN
ΔV
OUT
/ΔI
OUT
T
SS
F
CLK
V
EN(L)
V
EN(H)
I
EN
R
OUT
T
SD
T
HYS
mV
mV/V
mV/mA
µs
MHz
V
V
µA
Ω
°C
°C
0.4
1.4
1
1
150
15
1. The AAT3183 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.
4
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