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PDF AIC1653 Data sheet ( Hoja de datos )
| Número de pieza | AIC1653 | |
| Descripción | Micropower Inverting DC/DC Converter | |
| Fabricantes | Analog Intergrations Corporation | |
| Logotipo |  |
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AIC1653
Micropower Inverting DC/DC Converter in SOT-23-5
FEATURES
Low Quiescent Current:
15µA in Active Mode
<1µA in Shutdown Mode
Operates with VIN as Low as 1.8V
Uses Small Surface Mount Components
High Output Voltage: Up to -28V
Low profile 5-Lead SOT-23-5 Package
APPLICATIONS
LCD Bias
Hand-Held Computers
Battery Backup
Digital Still Cameras
DESCRIPTION
The AIC1653 is a micropower inverting DC/DC
converter in 5-lead SOT-23 package. It is designed
for power systems with a 100mA current limit and
an input voltage ranging from 1.8V to 10V. Besides,
AIC1653 features a quiescent current of only 15µA
at no load, which further reduces to 0.5µA when
shutdown. The schemes of current limited and
fixed off-time control conserve operating current,
resulting in high efficiency over a broad range of
load current. In addition, the 30V switch of
AIC1653 allows high voltage outputs up to -28V,
which is easily generated without the use of costly
transformers. The AIC1653’s low off-time of 400ns
permits the use of tiny, low profile inductors and
capacitors to minimize footprint and cost in
space-conscious portable applications.
TYPICAL APPLICATION CIRCUIT
VIN
2.5V~5V
C1
4.7µF
L1
22µH
5 VIN
1
SW
4 SHDN
2 GND NFB 3
AIC1653
C3
0.22µF
L2
22µH
D1 R1
RB521S-30 150k
R2
39K
VOUT
-6V/14mA
C2
4.7µF
L1,L2: TOKO D312F 22µH
D1: Rohm RB521S-30
C1,C2,C3: TAIYO YUDEN Ceramic capacitors
Analog Integrations Corporation
4F, 9 Industry E. 9th Rd, Science-Based Industrial Park, Hsinchu, Taiwan
TEL: 886-3-5772500
FAX: 886-3-5772510 www.analog.com.tw
DS-1653-02 122203
1
1 page  
AIC1653
TYPICAL PERFORMANCE CHARACTERISTICS (Continued)
850
800 VIN=3.6V
750
700
Phase I
-40 -20
Temperature (°C)
0 20 40 60
24
VIN=1.8V to 12V,
22 Temperature = 20°C
20
80 100
650
600
550
500
450 Phase II
18
16
14 Temperature=-40°C to 100°C,
VIN =3.6V
12
400
-40
-20
0
20
40
60
80
100
10
2
4
6
8 10 12
Temperature (°C)
Supply Voltage (V)
Fig. 5 Switch Off Time vs. Temperature
Fig. 6 Quiescent Current vs. Temperature and Voltage
7.0
6.8
6.6
6.4
6.2
6.0
5.8 VOUT = - 6.0V,
5.6 IOUT=2mA
5.4
5.2
5.0
2 3 4 5 6 7 8 9 10
Input Voltage (V)
Fig. 7 Line Regulation
5
5 Page 
AIC1653
PHYSICAL DIMENSIONS (unit: mm)
SOT-23-5 (CV)
HE
D
C
L
e
A2
b
A
A1
θ1
SYMBOL
A
A1
A2
b
C
D
E
e
H
L
θ1
MIN MAX
1.00
1.30
— 0.10
0.70
0.90
0.35
0.50
0.10
0.25
2.70
3.10
1.40
1.80
1.90 (TYP)
2.60
3.00
0.37 —
1° 9°
Note:
Information provided by AIC is believed to be accurate and reliable. However, we cannot assume responsibility for use of any
circuitry other than circuitry entirely embodied in an AIC product; nor for any infringement of patents or other rights of third parties
that may result from its use. We reserve the right to change the circuitry and specifications without notice.
Life Support Policy: AIC does not authorize any AIC product for use in life support devices and/or systems. Life support devices or
systems are devices or systems which, (I) are intended for surgical implant into the body or (ii) support or sustain life, and whose
failure to perform, when properly used in accordance with instructions for use provided in the labeling, can be reasonably expected
to result in a significant injury to the user.
11
11 Page | ||
| Páginas | Total 11 Páginas | |
| PDF Descargar | [ Datasheet AIC1653.PDF ] | |
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