AIC1630
Step-Up DC/DC Controller
FEATURES
Adjustable Output Voltage with Two Resistors
(AIC1630A).
Power-Saving Shutdown Mode (7µA typical).
120KHz Switching Rate.
On-Chip Low Battery Detector.
DESCRIPTION
The AIC1630 is a DC-DC controller designed to
drive an external power switch for more flexibility,
especially in higher voltage and larger power
applications.
Typically
six
components
are
required to set up a step-up configuration easily
achieving efficiency beyond 80%. A few more
components are required to set up a step-down
APPLICATIONS
Palmtop & Notebook Computers.
Battery Charger Supply.
Cellular Telephone.
LCD Contrast Supply.
Flash Memory Programmer.
Battery Backup Supplies.
Portable Instruments.
configuration delivering 4A load current with 83%
typical efficiency, 86% at 2A load, and 300µA
quiescent current.
The output voltage is internally set to 3V, 3.3V, 5V
or externally set to an arbitrary value below
breakdown
voltage
of
the
power
switch.
Logic-controlled shutdown mode is provided for
power saving. The low battery detector can be
also configured as a linear regulator.
120KHz switching rate reduces the inductor size.
Inductors of 22µH to 47µH inductance are
recommended for most applications.
Analog Integrations Corporation
Si-Soft Research Center
3A1, No.1, Li-Hsin Rd. I , Science Park , Hsinchu 300, Taiwan , R.O.C.
TEL: 886-3-5772500
FAX: 886-3-5772510
www.analog.com.tw
DS-1630G-01
122608
1
AIC1630
ORDERING INFORMATION
AIC1630-XXXXX
PACKING TYPE
TR: TAPE & REEL
TB: TUBE
PACKAGE TYPE
N: DIP-8
S: SOP-8
C: COMMERCIAL
P: LEAD FREE COMMERCIAL
G: GREEN PACKAGE
OUTPUT VOLTAGE
DEFAULT: 3.3V
3: 3.0V
5: 5.0V
A: ADJUSTABLE
EX: AIC1630-3CSTR
3.0V Version, in SOP-8 Package & Tape
& Reel Packing Type
PIN CONFIGURATION
DIP-8
SOP-8
TOP VIEW
SD
1
VIN
2
EXT
3
SGND
4
8
7
6
5
VOUT
LBI
LBO
CGND
DIP-8
SOP-8
Adjustable Version
TOP VIEW
SD
1
VIN
2
EXT
3
GND
4
8
7
6
5
VOUT
LBI
LBO
FB
ABSOLUTE MAXIMUM RATINGS
Supply Voltage
DC Voltage Applied On All Other Pins
Operating Temperature Range
Maximum Junction Temperature
Storage Temperature Range
Lead Temperature (Soldering, 10 sec)
7.0V
7.0V
-40°C to 85°C
125°C
-65°C to 150°C
260°C
Absolute Maximum Ratings are those values beyond which the life of a device may be impaired.
TEST CIRCUIT
Refer to Typical Application Circuit.
3
AIC1630
ELECTRICAL CHARACTERISTICS
specified.) (Note1)
PARAMETER
Input Voltage
I
L
=200mA
Output Voltage
AIC1630
AIC1630-3
AIC1630-5
Switch Off Current
Shutdown Mode Current
Recovery Time from Shutdown
Efficiency
Line Regulation
Load Regulation
Oscillator Frequency
LBI Pin Trip Point
FB Threshold Voltage
EXT Pin Driving Capability
LBO “ON Resistance”
Input Pin Bias Current
Output Pin Leakage
AIC1630A
Pin 8=5V
V
IN
=2.5V, I
L
=200mA
I
L
=300mA
(V
IN
=3.0V, T
A
=25°C, unless otherwise
°
TEST CONDITIONS
MIN.
1.8
3.16
2.88
4.80
TYP.
MAX.
7
UNIT
V
3.3
3.0
5.0
105
7
0.4
85
0.6
2.5
3.44
3.12
5.20
140
15
V
µA
µA
mS
%
%V
OUT
%V
OUT
Fig. 1 in Appl. Examples
V
IN
=2.2~3.3V
V
OUT
=5V, I
L
=100mA
I
L
=10mA~500mA
V
OUT
=5V
90
1.17
0.598
120
1.22
0.617
80
50
45
150
1.27
0.636
KHz
V
V
mA
mA
Ω
Sourcing, Pin 3= 0.85V
Sinking, Pin 3= 4.15V
V
IN
=2V
10
10
nA/Pin
nA/Pin
Note 1: Specifications are production tested at TA=25°C. Specifications over the -40°C to 85°C operating
temperature range are assured by design, characterization and correlation with Statistical Quality
Controls (SQC).
4
AIC1630
TYPICAL PERFORMANCE CHARACTERISTICS
85
80
90
V
OUT
=5V
80
70
60
50
V
OUT
=5V
70
EXT (mA)
60
T
A
=25°C
EXT
(mA)
50
Ext Pin Voltage=0.85V
40
V
OUT
=3V
30
40
V
OUT
=3V
30
0.6
0.8
1
20
EXT Pin Voltage (V)
1.2
1.4
1.6
1.8
0
10
20
30
40
50
60
70
80
Fig. 1 Ext Pin Sourcing Capability
Temperature (°C)
Fig. 2 Ext Pin Sourcing Capability vs. Temperature
85
80
75
70
55
T
A
=25°C
53
51
49
V
OUT
=5V
EXT (mA)
65
60
55
50
45
40
35
0.6
0.8
1
1.2
1.4
1.6
1.8
2.0
EXT
(mA)
47
45
43
41
39
37
35
0
10
20
30
40
50
60
70
80
Ext Pin Voltage=0.85V
V
OUT
=5V
V
OUT
=3V
V
OUT
=3V
EXT Pin Voltage (V)
Fig. 3 Ext Pin Sinking Capability
Temperature (°C)
Fig. 4 Ext Pin Sinking Capability vs. Temperature
110
105
100
120
115
110
V
IN
=3V
I
S
(
µ
A)
I
S
(
µ
A)
4
4.5
5
95
90
85
80
75
1.5
2
2.5
3
T
A
=25°C
105
100
95
90
3.5
0
10
20
30
40
50
60
70
80
V
IN
(V
)
Fig. 5 Switch off Supply Current vs. Input Voltage
Temperature (°C)
Fig. 6 Switch Off Supply Current vs. Temperature
5
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