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PDF AIC1630-3CN Data sheet ( Hoja de datos )
| Número de pieza | AIC1630-3CN | |
| Descripción | 2-Cell/ Step-Up DC/DC Converter Controller | |
| Fabricantes | Analog Intergrations Corporation | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de AIC1630-3CN (archivo pdf) en la parte inferior de esta página. Total 11 Páginas | ||
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AIC1630
2-Cell, Step-Up DC/DC Converter Controller
FEATURES
Adjustable Output Voltage with Two Resistors
(AIC1630A).
Power-Saving Shutdown Mode (7µA typical).
120KHz Switching Rate.
On-Chip Low Battery Detector.
APPLICATIONS
Palmtop & Notebook Computers.
Battery Charger Supply.
Cellular Telephone.
LCD Contrast Supply.
Flash Memory Programmer.
Battery Backup Supplies.
Portable Instruments.
DESCRIPTION
The AIC1630 is a DC-DC converter 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
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 25µH to 50µH inductance are
recommended for most applications.
TYPICAL APPLICATION CIRCUIT
+VOUT
3.3V
LOAD
+VIN
L
D1
1N5819
100Ω
R3
C1
+
5nF C2
Q1
1 270Ω
R4
SD VOUT
VIN LBI
EXT
LBO
SGND
CGND
AIC1630
Note : VIN ≥ 1.8V , VOUT ≤ 7V
High Efficiency Step-Up DC/DC Converter
Analog Integrations Corporation 4F, 9, Industry E. 9th Rd, Science Based Industrial Park, Hsinchu Taiwan, ROC
DS-1630-05
TEL: 886-3-5772500 FAX: 886-3-5772510
www.analog.com.tw
1
1 page  
AIC1630
TYPICAL PERFORMANCE CHARACTERISTICS (CONTINUED)
Shutdown Mode Supply Current vs Input Voltage
8.2
8
Ta=25C
7.8
Shutdown Mode Supply Current vs Temperature
9.4
9 VIN=3V
8.6
7.6 8.2
7.4 7.8
7.2 7.4
7
1 1.5 2 2.5 3 3.5 4 4.5 5
VIN (V)
7 0 10 20 30 40 50 60 70 80
Temperature (°C)
130
120
110
100
90
80
70
60
1
Oscillator Frequency vs Input Voltage
Ta=25°C
1.5 2 2.5 3 3.5 4 4.5
VIN (V)
5
BLOCK DIAGRAM
Oscillator Frequency vs Temperature
123
122
VIN=3V
121
120
119
118
117 0
10 20 30 40 50 60 70 80
Temperature (°C)
SD -
100mV
+
VIN
EXT OSC
GND
Shutdown
FB EXT=LOW
-
+ 0.617V
FB EXT=HIGH
1.22V
-
+
+
- 100mV
VOUT
LBI
LBO
FB
5
5 Page 
PHYSICAL DIMENSIONS
8 LEAD PLASTIC SO (unit: mm)
D
H
E
e
A
C
B
8 LEAD PLASTIC DIP (unit: mm)
D
E1
L
A2
A1
L
be
E
C
eB
AIC1630
SYMBOL
A
A1
B
C
D
E
e
H
L
MIN MAX
1.35
1.75
0.10
0.25
0.33
0.51
0.19
0.25
4.80
5.00
3.80
4.00
1.27(TYP)
5.80
6.20
0.40
1.27
SYMBOL
A1
A2
b
C
D
E
E1
e
eB
L
MIN MAX
0.381
—
2.92
4.96
0.35
0.56
0.20
0.36
9.01
10.16
7.62
8.26
6.09
7.12
2.54 (TYP)
— 10.92
2.92
3.81
11
11 Page | ||
| Páginas | Total 11 Páginas | |
| PDF Descargar | [ Datasheet AIC1630-3CN.PDF ] | |
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