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Teilenummer | AIC1634 |
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Beschreibung | 1.4MHz Current-Mode Step-Up DC/DC Converter | |
Hersteller | aic | |
Logo | ||
Gesamt 10 Seiten AIC1634
1.4MHz Current-Mode Step-Up DC/DC Converter
FEATURES
Fixed Frequency 1.4MHz Current-Mode PWM
Operation.
Adjustable Output Voltage up to 30V.
Guaranteed 12V/ 150mA Output with 5V Input.
2.6V to 10V Input Range.
Maximum 0.1µA Shutdown Current.
Programmable Soft-Start.
Tiny Inductor and Capacitors are allowed.
Space-Saving SOT-23-6 Package.
APPLICATIONS
LCD Bias
LCM
OLED Driver
DESCRIPTION
AIC1634 is a current-mode pulse-width modulation
(PWM), step-up DC/DC Converter. The built-in high
voltage N-channel MOSFET allows AIC1634 for
step-up applications with up to 30V output voltage,
as well as for Single Ended Primary Inductance
Converter (SEPIC) and other low-side switching
DC/DC converter.
The high switching frequency (1.4MHz) allows the
use of small external components. The Soft-Start
function is programmable with an external capacitor,
which sets the input current ramp rate.
The AIC1634 is available in a space-saving
SOT-23-6 package.
TYPICAL APPLICATION CIRCUIT
3.3~4.2V
CIN
4.7µF
L1
10µH
IN SW
SHDN FB
GND SS
AIC1634
D1
VOUT =12V
R1
105k
COUT
C1 10µF
39pF
Css
33nF
R2
12k
L1: SLF6025-100M1R0, TDK
D1: SS0540, PAN JIT
CIN: EDK316BJ475KD, Taiyo Yuden
COUT: TMK316C106KL, Taiyo Yuden
Fig. 1 12V LCD Bias Application for Li-Ion Battery
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-1634P-02 010405
1
Free Datasheet http://www.Datasheet4U.com
AIC1634
TYPICAL PERFORMANCE CHARACTERISTICS (Continued)
VSHDN
VOUT
IINDUCTOR
VIN=3.6V, VOUT=12V,
IOUT=100mA, CSS=33nF
VSHDN
VOUT
IINDUCTOR
VIN=3.6V, VOUT=12V,
IOUT=100mA, CSS=100nF
Fig. 14 Start-Up from Shutdown
VOUT
IOUT
Fig. 15 Start-Up from Shutdown
VOUT
IOUT
Fig. 16 Load Step Response
VIN=3.3V, VOUT=5V, ILOAD=5mA to 200mA
Fig. 17 Load Step Response
VIN=5V, VOUT=12V, ILOAD=50mA to 150mA
6
Free Datasheet http://www.Datasheet4U.com
6 Page | ||
Seiten | Gesamt 10 Seiten | |
PDF Download | [ AIC1634 Schematic.PDF ] |
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