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PDF Xc9302 Data sheet ( Hoja de datos )
| Número de pieza | Xc9302 | |
| Descripción | PWM/ PWM/PFM Switching Step-Up & Down DC/DC Converter Controller ICs | |
| Fabricantes | Torex Semiconductor | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de Xc9302 (archivo pdf) en la parte inferior de esta página. Total 12 Páginas | ||
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NInput Voltage Range : 2.0V ~10.0V
NOutput Voltage Range : 2.4V ~ 6.0V (±2.5% accuracy)
NOscillation Frequency Range
: 180kHz, 300kHz (±15% accuracy)
NMaximum Duty Ratio : 85% (typ)
NPWM/PFM Switching Step-Up & Down Control (XC9302)
GMobile phones
GPDAs
GPalmtop computers
GPortable audio equipment
GVarious power supplies
NEfficiency
: 81% (typ) 5.0V , 78% (typ) 3.3V
NSOT-25 Package
6
The XC9301/02 series are step-up/down DC/DC converter controller ICs
with fast, low ON resistance drivers built-in. A versatile, large output
current, step-up/down DC/DC converter can be realised using only 4
basic external components - transistors, coils, diodes and capacitors.
Output voltage is selectable in 0.1V steps within a 2.4V ~ 6.0V ( ± 2.5%
accuracy) range and switching frequency is set at 180kHz or 300KHz.
The XC9302 series switches from PWM to PFM control during light loads
and the series offers high efficiencies from light loads through to large
output currents.
Soft-start time is internally set to 10 msec which offers protection against
rush currents when the power is switched on and also against voltage
overshoot.
During shutdown (CE pin = L), consumption current can be reduced to
as little as 0.5µA or less.
Input Voltage Range : 2.0V ~ 10V
Output Voltage Range : 2.4V ~ 6.0V ( ± 2.5% accuracy)
(selectable in 0.1V steps)
Oscillation Frequency : 180KHz, 300KHz ( ± 15% accuracy)
Output Current
: more than 250mA (VIN=2.4V,
VOUT=3.3V)
Efficiency
: 81% (typ) at 5.0V, 78% (typ) at 3.3V
Stand-By
: ISTB = 0.5µA (max)
Output Voltage Internal Set-Up
SOT-25 Package
597
1 page  
XC9301x332MR,XC9302x332MR
XC9301x333MR, XC9302x333MR
GCircuit Connection Example
6
601
5 Page 
XC9302A502 (PWM/PFM switching control, 180kHz, VOUT=5.0V)
(1) OUTPUT VOLTAGE vs. OUTPUT CURRENT (Topr=25°C)
(2) EFFICIENCY vs. OUTPUT CURRENT (Topr=25°C)
(3) RIPPLE VOLTAGE vs. OUTPUT CURRENT (Topr=25°C)
External Components
PSW : XP162A12A6PR
NSW : XP161A1265PR
SD : U2FWJ44N 2
L : 22µH (CR54)
CL : 47µF (Tantalum MCE) 2
CIN : 220µF (Electrolytic PJ type)
RDD : 10Ω
CDD : 47µF (Tantalum MCE)
VCE=VIN
6
607
11 Page | ||
| Páginas | Total 12 Páginas | |
| PDF Descargar | [ Datasheet Xc9302.PDF ] | |
Hoja de datos destacado
| Número de pieza | Descripción | Fabricantes |
| Xc9301 | PWM/ PWM/PFM Switching Step-Up & Down DC/DC Converter Controller ICs | Torex Semiconductor |
| Xc9302 | PWM/ PWM/PFM Switching Step-Up & Down DC/DC Converter Controller ICs | Torex Semiconductor |
| XC9303 | Synchronous Step-Up & Down DC / DC Controller ICs | Torex Semiconductor |
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