|
|
PDF AIC1848 Data sheet ( Hoja de datos )
| Número de pieza | AIC1848 | |
| Descripción | Regulated 5V Charge Pump In SOT-23 | |
| Fabricantes | Analog Integrations | |
| Logotipo |  |
|
Hay una vista previa y un enlace de descarga de AIC1848 (archivo pdf) en la parte inferior de esta página. Total 11 Páginas | ||
|
No Preview Available !
heet4U.comFEATURES
taSRegulated ±4% Output Voltage
aOutput Current: 100mA at VIN =3.1V
.DInput Range: 2.7V to 4.5V
wNo Inductors Required
wVery Low Shutdown Current: <1µA
w 1.8MHz Switching Frequency
AIC1848
Regulated 5V Charge Pump In SOT-23
DESCRIPTION
The AIC1848 charge pump is a micropower
charge pump DC/DC converter that produces a
regulated output voltage from 2.7V to 4.5V input
voltage. Low external-part count (one flying
capacitor and two small bypass capacitors)
Short-Circuit and Over Temperature Protection
Low Profile Package: SOT-23-6
.comAPPLICATIONS
White LEDs Backlighting
USIM Interface Supplies for Cellular Telephones
Li-Ion Battery Backup Supplies
t4Local 3V to 5V Conversion
Smart Card Readers
ePCMCIA Local 5V Supplies
makes the AIC1848 ideal for small, battery-
powered applications.
The AIC1848 operates as a constant frequency
mode switched capacitor voltage doubler to
produce a regulated output and features with
thermal shutdown capability and short circuit
protection.
The AIC1848 is available in a space-saving
SOT-23-6 package.
SheTYPICAL APPLICATION CIRCUIT
VOUT
ata1-Cell
www.DLi-ion Battery
U1
CIN
1 VOUT
C+ 6
1µF
2 GND
VIN 5
3
SHDN
C- 4
COUT
1µF
CFLY
1µF
R1 R2 R3
AIC1848
Regulated 5V Output from 2.7V to 4.5V Input
WLED series number: NSPW310BS, VF=3.6V, IF=20mA
.comR
=
VOUT
I
− VF
F
UCIN, CFLY, COUT: JMK107BJ105KA, TAIYO YUDEN
www.DataSheet4Analog 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-1848P-01 030105
1
1 page  
AIC1848
TYPICAL PERFORMANCE CHARACTERISTICS (Continued)
90
80
70
60
50
40
30
20
1
Vin=2.7
Vin=3.0V
Vin=3.4V
Vin=3.7V
Vin=4.2V
CIN= COUT=1uF
CFLY=1uF
10 100
Load Current (mA)
Fig.7 Efficiency vs. Load Current
1000
90
80
70
60
50
40
30
20
1
Vin=2.7V
Vin=3.0V
Vin=3.4V
Vin=3.7V
Vin=4.2V
CIN= COUT=1uF
CFLY=0.1uF
10 100
Load Current (mA)
Fig.8 Efficiency vs. Load Current
1000
140
120
CIN=COUT=1µF
CFLY=0.1µF
100
VIN=4.2V
VIN=3.6V
80
60 VIN=3.0V
40
20 VIN=2.7V
00
50 100 150 200 250
Output Current (mA)
Fig. 9 Output Ripple Voltage vs. Output Current
80
70
VIN=3V
CFLY=0.1µF
60
COUT=1uF
50
40
30 COUT=2.2uF
20
10
0 0 20 40 60 80 100 120
Output Current (mA)
Fig. 10 Output Ripple Voltage vs. Output Current
5
5 Page 
AIC1848
PHYSICAL DIMENSIONS (unit: mm)
SOT-23-6
D
A A e1 e
SEE VIEW B
WITH PLATING
b
BASE METAL
SECTION A-A
S
Y
M
B
O
L
A
A1
A2
b
c
D
E
E1
e
e1
L
L1
θ
SOT-26
MILLIMETERS
MIN.
0.95
0.05
0.90
0.30
0.08
2.80
2.60
1.50
0.95 BSC
1.90 BSC
0.30
0.60 REF
0°
MAX.
1.45
0.15
1.30
0.50
0.22
3.00
3.00
1.70
0.60
8°
L
L1
VIEW B
GAUGE PLANE
SEATING PLANE
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 AIC1848.PDF ] | |
Hoja de datos destacado
| Número de pieza | Descripción | Fabricantes |
| AIC1840 | REGULATED GaAsFET BIAS |  Analog Intergrations Corporation |
| AIC1841 | High Efficiency 1.5X charge Pump | Analog Intergrations Corporation |
| AIC1841 | REGULATED GaAsFET BIAS | Analog Intergrations Corporation |
| AIC1842 | High Efficiency 1.5X charge Pump | Analog Intergrations Corporation |
| Número de pieza | Descripción | Fabricantes |
| SLA6805M | High Voltage 3 phase Motor Driver IC. |
 Sanken |
| SDC1742 | 12- and 14-Bit Hybrid Synchro / Resolver-to-Digital Converters. |
 Analog Devices |
|
DataSheet.es es una pagina web que funciona como un repositorio de manuales o hoja de datos de muchos de los productos más populares, |
| DataSheet.es | 2020 | Privacy Policy | Contacto | Buscar |