AIC1633-5CN [AIC]
2-Cell, 200mA, Step-Up DC/DC Converter; 2 ，细胞型，200mA ，升压型DC / DC转换器
| 型号： | AIC1633-5CN |
| 厂家： | 
ANALOG INTERGRATIONS CORPORATION |
| 描述： | 2-Cell, 200mA, Step-Up DC/DC Converter |
| 文件： | 总10页 (文件大小：280K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
AIC1633
2-Cell, 200mA, Step-Up DC/DC Converter
ꢀ FEATURES
ꢀ DESCRIPTION
ꢀ High Efficiency Up To 87%.
The AIC1633 is a high efficiency step up DC/DC
ꢀ Adjustable Output Voltage with Two Resistors
converter. Only four external components are
required to deliver a fixed voltage of 3V, 3.3V, or
5V. The output voltage can be externally set to
an arbitrary value below breakdown voltage of
the power switch for AIC1633A. Efficiency
beyond 83% can be easily achieved at 70mA
load with 2.2V to 3V input voltages.
(AIC1633A)
ꢀ Power-Saving Shutdown Mode (7µA typical).
ꢀ Internal 0.8A Switch.
ꢀ 120KHz Switching Rate.
ꢀ Adjustable Switch Current Limit.
ꢀ On-Chip Low Battery Detector.
ꢀ APPLICATIONS
ꢀ Pocket Organizers.
ꢀ Electronic Dictionaries.
ꢀ Cameras.
Logic-controlled shutdown mode is provided for
power saving. Switch current limit can be
programmed with a resistor. The low battery
detector can be configured as a linear regulator
or a burst mode controller performing an
extremely low supply current operation.
ꢀ Pagers.
ꢀ Bar-Code Scanners.
ꢀ LCD Displays.
ꢀ Battery Backup Supplies.
ꢀ Portable Instruments.
120KHz switching rate reduces the inductor size.
Inductors of 47µH to 150µH inductance are
recommended for most applications.
ꢀ TYPICAL APPLICATION CIRCUIT
470Ω
NORMAL
10K
+VIN
+
R1
ILIM/SD
VIN
VOUT
LBI
22µF
RILIM
SD
100µH
C1
L
1N5819
+VOUT (3.3V)
LOAD
D1
SW
LBO
+
SGND
CGND
22µF
C2
NOTE: VIN≥1.8V, VOUT≤7V
TATAN
AIC1633
High-Efficiency Step-Up DC/DC Converter
Analog Integrations Corporation 4F, 9, Industry E. 9th Rd, Science Based Industrial Park, Hsinchu Taiwan, ROC
DS-1633-03 Mar 15, 00 TEL: 886-3-5772500 FAX: 886-3-5772510
www.analog.com.tw
1
AIC1633
ꢀ ORDERING INFORMATION
AIC1633 XXX
PIN CONFIGURATION
ORDER NUMBER
AIC1633CN
TOP VIEW
PACKAGE TYPE
N: PLASTIC DIP
S: SMALL OUTLINE
AIC1633-3CN
AIC1633-5CN
VOUT
LBI
ILIM/SD
1
2
3
4
8
7
6
5
)
VIN
SW
(PLASTIC DIP
LBO
TEMPERATURE RANGE
AIC1633CS
C=0°C~+70°C
SGND
CGND
AIC1633-3CS
AIC1633-5CS
OUTPUT VOLTAGE
DEFAULT: 3.3V
3: 3.0V
(PLASTIC SO)
5: 5.0V
AIC1633ACN
TOP VIEW
ILIM/SD
A: Adjustable
)
(PLASTIC DIP
VOUT
LBI
1
2
3
4
8
7
6
5
VIN
SW
AIC1633ACS
LBO
FB
(PLASTIC SO)
GND
ꢀ ABSOLUTE MAXIMUM RATINGS
Supply Voltage .........................................................……………………....................... 7.0V
Operating Temperature Range ...................................……….……................. -20°C ~ 80°C
Storage Temperature Range .........................................……..………....... -65°C ~ 150°C
ꢀ TEST CIRCUIT
Refer to Typical Application Circuit.
ꢀ ELECTRICAL CHARACTERISTICS (VIN=3.0V, Ta=25°C, unless otherwise specified.)
PARAMETER
TEST CONDITIONS
MIN.
TYP.
MAX. UNIT
Input Voltage
1.8
7
V
I
LOAD =70mA
AIC1633
Output Voltage
3.16
2.88
4.80
3.3
3
5
3.44
3.12
5.20
V
AIC1633-3
AIC1633-5
105
140
µA
µA
Switch off Current
No Load Current
AIC1633/AIC1633-3
AIC1633-5
160
250
7
15
µA
Shutdown Mode Current
Shutdown Recovery Time
VIN=2.5V, ILOAD =70mA
1.8
mS
2
AIC1633
ꢀ ELECTRICAL CHARACTERISTICS (CONTINUED)
PARAMETER
TEST CONDITIONS
MIN.
TYP.
MAX. UNIT
ILOAD =70mA
Efficiency
AIC1633/AIC1633-3
AIC1633-5
87
86
%
I
LOAD =40mA
Line Regulation
Load Regulation
AIC1633, VIN =2.0~3.3V
AIC1633-3, VIN =2.0~3.0V
AIC1633-5, VIN =2.2~4.5V
0.6
0.6
0.5
%VOUT
ILOAD =170mA
AIC1633/AIC1633-3
AIC1633-5
0.6
0.5
%VOUT
90
120
1.22
150
1.27
KHz
V
Oscillator Frequency
LBI Pin Trip Point
1.17
0.598
AIC1633A
0.617
0.636
FB Threshold Voltage
V
AIC1633/AIC1633-3
AIC1633-5
1.75
1.25
SW “ON Resistance”
Ω
VIN=2V
45
Ω
LBO “ON Resistance”
SW Off Leakage
1
µA
10
10
nA/Pin
nA/Pin
Input Pin Bias Current
Output Pin Leakage
ꢀ TYPICAL PERFORMANCE CHARACTERISTICS
Switch Voltage vs Current
SW ON Resistance vs Temperature
2
1.8
1.6
1.4
1.2
1
3
2.5
2
AIC1633/AIC1633-3
AIC1633/AIC1633-3
AIC1633-5
1.5
1
AIC1633-5
0.5
0
Ta = 25 C
°
0
0.5
1
1.5
2
2.5
0
10
20
30
40
50
60
70
80
ISW (A)
Temperature ( C)
°
3
AIC1633
ꢀ TYPICAL PERFORMANCE CHARACTERISTICS (CONTINUED)
No Load Supply Current vs Input Voltage
No Load Supply Current vs Temperature
300
260
220
180
140
100
280
260
240
220
200
180
160
140
VIN=3V
Ta = 25 C
°
AIC1633/AIC1633-3
AIC1633-5
AIC1633/AIC1633-3
AIC1633-5
1
1.5
2
2.5
3
3.5
4
4.5
5
0
0
0
10
20
30
40
50
60
70
80
°
Temperature ( C)
VIN (V)
Shutdown Mode Supply Current vs Input Voltage
Shutdown Mode Supply Current vs Temperature
VIN=3V
8.2
8
9.4
9
Ta = 25 C
°
7.8
7.6
7.4
7.2
7
8.6
8.2
7.8
7.4
7
20
40
60
80
1
1.5
2
2.5
3
3.5
4
4.5
5
Temperature ( C)
°
VIN (V)
Oscillator Frequency vs Input Voltage
Oscillator Frequency vs Temperature
130
120
110
100
90
123
122
121
120
119
118
117
Ta = 25 C
°
VIN=3V
80
70
60
10
20
30
40
50
60
70
80
1
1.5
2
2.5
3
3.5
4
4.5
5
VIN (V)
Temperature ( C)
°
4
AIC1633
ꢀ TYPICAL PERFORMANCE CHARACTERISTICS (CONTINUED)
Maximum Load Current vs
Maximum Load Current vs
Switch Current Limit Resistance
Switch Current Limit Resistance
350
300
250
200
150
100
50
300
250
200
150
100
50
VIN=1.8V
VIN=2.0V
VIN=2.2V
AIC1633/AIC1633-3
AIC1633-5
Ta=25 C
°
Ta=25 C
°
5% VOUT Drop
5% VOUT Drop
VIN=3V
VIN=2.5V
VIN=1.8V
VIN=3V
VIN=3.3V
VIN=2.0V
VIN=2.2V
VIN=2.5V
0
0
600
0
100
200
300
400
500
0
20
40
60
80
100
120
RILIM (K
)
RILIM (K )
Ω
Ω
ꢀ BLOCK DIAGRAM
-
VOUT
LBI
Current Limit
ILIM/SD
VIN
+
0.617V
-
-
100mV
+
Shutdown
+
1.22V
A
LBO
SW
OSC
CGND
SGND
5
AIC1633
ꢀ PIN DESCRIPTIONS
AIC1633-30/ AIC1633-33 / AIC1633-50
PIN 1: ILIM/SD- 1. Connected to VIN pin through
a resistor to set the switch
AIC1633A
PIN 1:
ILIM/SD- 1. Connected to VIN pin through
a resistor to set the switch
peak current. It serves to
protect IC and inductor, as
well as to improve efficiency
and output ripples. However,
the current limit resistor limits
supply capability of the
peak current. It serves to
protect IC and inductor, as
well as to improve efficiency
and output ripples. However,
the current limit resistor limits
supply capability of the
AIC1633A.
(See
typical
AIC1633.
(See
typical
performance characteristics).
The ILIM/SD pin should be
shorted to VIN pin if limiting
on switch peak current is not
intended.
performance characteristics).
The ILIM/SD pin should be
shorted to VIN pin if limiting
on switch peak current is not
intended.
2. The AIC1633A goes in
2. The
AIC1633
goes
in
shutdown
mode
and
shutdown
mode
and
consumes less than 10µA
when ILIM/SD pin is pulled to
ground.
consumes less than 10µA
when ILIM/SD pin is pulled to
ground.
PIN 2: VIN - Input supply.
PIN 3: SW - Drain of the power switch, to be
connected to inductor/ diode.
PIN 4: GND - Ground.
PIN 5: FB
PIN 2: VIN
PIN 3: SW
-
-
Input supply.
Drain of the power switch, to be
connected to inductor/ diode.
PIN 4:SGND - Ground connected to source of
power switch.
PIN 5:CGND - Ground for control circuits of the
IC. It should be separated from
SGND to avoid the interference.
- Output voltage can either be
internally set to
5
volt by
grounding FB pin, or be externally
set to an arbitrary voltage by
applying to FB pin the divider
voltage of two divider resistors.
PIN 6:LBO
-
Open drain output of the battery
low detector, with 45Ω “ON
resistance” at VIN=2V. It is pulled
low when the voltage on LBI pin
is below 1.22V.
VOUT voltage is given by the
following equation:
PIN 7:LBI
-
The noninverting input of the
battery low detector, of which the
inverting input is internally
connects to 1.22V voltage
reference.
R1 VOUT
R2 0.617
=
−1
where R1 = Resistor connected
between FB pin and VOUT pin.
R2 = Resistor connected between
FB pin and ground.
PIN 8:VOUT - The output voltage feedbacks to
the IC through this pin.
VOUT=Output voltage to be set.
PIN 6: LBO - Open drain output of the battery
low detector, with 45Ω “ON
resistance” at VIN=2V. It is pulled
low when the voltage on LBI pin is
below 1.22V.
6
AIC1633
AIC1633A (continued)
PIN 7: LBI - The non-inverting input of the
PIN 8: VOUT- The output voltage feedbacks to
the IC through this pin. If output
voltage was externally set, the
VOUT pin can be tied to any low
impedance node with voltage
between the external power switch
threshold and 7V
battery low detector, of which the
inverting
connects
reference.
input
to
is
internally
voltage
1.22V
ꢀ APPLICATION EXAMPLES
95
90
+VOUT
+VIN
(+3V)
470Ω
VIN=3.0V
R1
85
VOUT
LBI
ILIM/SD
+
L1
VIN=2.2V
22µF
LOAD
80
82µH
VIN
C1
VIN=2.0V
LBO
75
SW
VIN=1.8V
70
CGND
SGND
+
1N5819
D1
C2
65
AIC1633-3
0
30
60
90
120
150
22µF
Load Current (mA)
Fig. 1
3V Output Step-Up Converter
+VOUT
95
90
+VIN
(+5V)
470Ω
R1
VIN=4.5V
VOUT
LBI
ILIM/SD
VIN
+
85
80
75
70
65
22µF
L1
LOAD
VIN=3.0V
VIN=2.2V
C1
82µH
LBO
SW
VIN=1.8V
CGND
SGND
+
AIC1633-5
1N5819
D1
22µF
C2
0
20
40
60
120
140
160
Load Cu8r0rent (1m00A)
Fig. 2
5V Output Step-Up Converter
7
AIC1633
ꢀ APPLICATION EXAMPLES (CONTINUED)
+VOUT
(+3V)
85
470Ω
+VIN
R1
VIN=1.6V
VIN=1.4V
80
75
VOUT
LBI
ILIM/SD
VIN
+
LOAD
VIN=1.0V
10µF
1N5819
D1
L1
100µH
VIN=1.2V
C1
VIN=0.8V
70
65
60
LBO
SW
CGND
SGND
+
AIC1633-3
22µF
5
0
10
15
20
25
30
35
C2
Load Current (mA)
Start-Up VIN Voltage = 1.4V
Fig. 3
1-Cell Input 3V Output Step-Up Converter
2SB1424
90
85
Q1
+VOUT
(+5V)
15K
R5
+VIN
VIN=5V
10K
RILIM
470Ω
VIN=6V
R1
VIN=4.5V
VIN=4V
R2
3.3K
R3
VIN=3V
VOUT
ILIM/SD
VIN=3.5V
62K
+
80
75
150µH
L1
+
C2
LBI
LBO
C4
VIN
10µF
10µF
SW
LOAD
20K
R4
CGND
SGND
+
VIN=7V
C1
1N5819
D1
70
22µF
AIC1633-5
20
40 60 80 100 120
160 180 200 220 240
Load Curren1t4(0mA)
0
Fig. 4
4-Cell Input Step-Up/ Step-Down Converter
+VIN
2SB1424
Q1
100
82µH
L1
+VOUT
1K
R1
1N5819
D1
(+3V)
95
VIN=3V
VIN=4V
1K
R2
R4
1K
R3
33K
VOUT
ILIM/SD
+
10µF
90
85
80
75
C2
+
LBI
VIN=5V
VIN
22µF
+
10µF
C3
LBO
C1
SW
LOAD
VIN=7V
24K
R5
CGND
SGND
VIN=6V
AIC1633-3
VOUT Ripple May Be Large at VIN=3V Condition
0
20
40
60
100 120 140 160 180 200 220
L8o0ad Current (mA)
Fig. 5 3-Cell Input 3V Output Step-Down Converter
8
AIC1633
ꢀAPPLICATION EXAMPLES
(CONTINUED)
L1
100
80
50µH
100Ω
VIN=8V
+VIN
R4
1N4148
D5
VOUT
(+5V)
VIN=12V
VIN=16V
VIN=20V
100K
R3
1N4148
D4
0.1µF
C2
60
Q4
10K
R2
R1
4.3K
9014
Q2
+
ILIM\SD VOUT
+
40
20
0
+
Q1
9014
ZD1
5.1V
220µF
C4
C1
100µF
VIN
LBI
IRFZ34
C3
10µF
D3
1N4148
Q3
LBO
SW
D1
9014
MBR360
CGND
SGND
0.005
0.05
5
Load Curr0e.n5t (mA)
AIC1633-5
1N4148
D2
Fig. 6 Boost-Driven 5V Output Step-Down Converter
+VOUT
+VIN
470Ω
R1
ILIM/SD VOUT
+
22µF
C1
VIN
LBI
LOAD
R1
R2
SW
LBO
FB
GND
+
22µF
AIC1631A
1N5819
D1
C2
Fig.7 Adjustable Output Voltage Step-Up Converter
9
AIC1633
ꢀ PHYSICAL DIMENSION
ꢀ 8 LEAD PLASTIC SO (unit: mm)
D
SYMBOL
MIN
1.35
0.10
0.33
0.19
4.80
3.80
MAX
1.75
0.25
0.51
0.25
5.00
4.00
A
A1
B
C
D
E
H
E
e
e
1.27(TYP)
A
H
L
5.80
0.40
6.20
1.27
C
B
L
ꢀ 8 LEAD PLASTIC DIP (unit: mm)
SYMBOL
MIN
0.381
2.92
0.35
0.20
9.01
7.62
6.09
MAX
—
D
A1
A2
b
C
D
E
E1
e
eB
L
4.96
0.56
0.36
10.16
8.26
7.12
E1
E
A2
A1
L
C
2.54 (TYP)
—
2.92
eB
10.92
3.81
e
b
10
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