18V 100mA Step-Up Converter
Electrical Characteristics
1
T
A
= -40°C to +85°C, unless otherwise noted. Typical values are T
A
= 25°C, V
IN
= 3.6V.
Symbol
Description
Conditions
Min
2.7
V
IN
Rising
Hysteresis
V
IN
Falling
SEL = GND, V
OUT
= 14V,
I
OUT
= 0, Switching
2
SEL = GND, FB2 = 1.5V,
Not Switching
EN/SET = GND
2.7V < V
IN
< 5.5V, V
OUT
= 18V
I
OUT
= 0 to 100mA, V
IN
= 2.7V
to 5.0V, SEL = High
I
OUT
= 0 to 100mA, V
IN
= 2.7V
to 5.0V, SEL = Low
I
OUT
= 0 to 100mA
V
IN
= 2.7V to 5.5V
AAT1230
Typ
Max
5.5
18
2.7
Units
V
V
V
mV
V
mA
Power Supply
V
IN
Input Voltage Range
V
OUT(MAX)
Maximum Output Voltage
V
UVLO
UVLO Threshold
150
1.8
2.0
40
70
1.0
100
1.164
0.582
1.2
0.6
0.01
0.6
0.06
0.18
1.236
0.618
I
Q
I
SHDN
I
OUT
FB1
FB2
ΔV
LOADREG
ΔV
LINEREG
/
ΔV
IN
R
DS(ON)L
R
DS(ON)IN
T
SS
T
SD
T
HYS
I
LIM
SEL, EN/SET
V
SEL(L)
V
SEL(H)
V
EN/SET(L)
V
EN/SET(H)
T
EN/SET LO
T
EN/SET HI MIN
T
EN/SET HI MAX
T
OFF
T
LAT
I
EN/SET
Quiescent Current
V
IN
Pin Shutdown Current
Output Current
FB1 Reference Voltage
FB2 Reference Voltage
Load Regulation
Line Regulation
Low Side Switch On Resistance
Input Disconnect Switch
On Resistance
Soft-Start Time
Over-Temperature Shutdown
Threshold
Shutdown Hysteresis
N-Channel Current Limit
SEL Threshold Low
SEL Threshold High
Enable Threshold Low
Enable Threshold High
EN/SET Low Time
Minimum EN/SET High Time
Maximum EN/SET High Time
EN/SET Off Timeout
EN/SET Latch Timeout
EN/SET Input Leakage
µA
µA
mA
V
V
%/mA
%/V
Ω
Ω
µs
°C
°C
A
From Enable to Output Regulation;
V
OUT
= 15V
350
140
V
IN
= 3.6V
V
IN
V
IN
V
IN
V
IN
=
=
=
=
2.7V
5.5V
2.7V
5.5V
15
3.0
0.4
1.4
0.4
1.4
0.3
50
75
500
500
1
75
-1
V
V
V
V
µs
ns
µs
µs
µs
µA
1. The AAT1230 is guaranteed to meet performance specifications from 0°C to 70°C. Specification over the -40°C to +85°C operating
temperature range is assured by design, characterization, and correlation with statistical process controls.
2. Total input current with prescribed FB resistor network can be reduced with larger resistor values.
4
1230.2006.03.1.0
ANALOGICTECH [ ADVANCED ANALOGIC TECHNOLOGIES ]
