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PDF XR2204D Data sheet ( Hoja de datos )
| Número de pieza | XR2204D | |
| Descripción | 14V Step-up DC/DC Converter | |
| Fabricantes | XySemi | |
| Logotipo |  |
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XR2204D
_____________________________
_________
1.2MHZ，14V Step-up DC/DC Converter
GENERAL DESCRIPTION
The XR2204D is a high frequency, high
efficiency DC to DC converter with an
integrated 4A, 0.1Ω power switch capable
of providing an output voltage up to 14V.
The fixed 1.2MHz allows the use of small
external inductions and capacitors and
provides fast transient response. It
integrates Soft start, Comp,. only need few
components outside.
FEATURES
z 2.3V to 6V input voltage Rangel
z Efficiency up to 96%
z 14V Boost converter with 4A switch
current
z 1.2Mhz fixed Switching Frequency
z Integrated soft-start
z Thermal Shutdown
z Under voltage Lockout
z ESD 8KV Pass( HBM )
z 8-Pin SOP-PP Package
APPLICATIONS
• Handheld Devices
• GPS Receiver
• Digital Still Camera
• Portable Applications
• DSL Modem
• PCMCIA Card
• TFT LCD Bias Supply
XySemi Inc
Figure 1. Typical Application Circuit1
- 1 - www.xysemi.com
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XR2204D
____________________________________________________________________________________________________
compensation, which provides better stability for the
voltages an under volt age lockout is i ncluded that
system over a wide of input and out put volt ages
disables the device, if the input volt age falls below
range, and more st able and accu rate cu rrent
2.2V
limiting operation com pared to boo st converte rs
operating wit h a conventi onal PWM schem e .The
THERMAL SHUTDOWN
XR2204D to pology ha s also the benefits of
A thermal sh utdown is implemente d to prevent
providing very good load and line regu lations, and
damages due to exce ssive h eat and po wer
excellent load transient response.
dissipation. T ypically the thermal shut
down
threshold i s 150℃ . When the thermal shutdown is
triggered th e device st ops swit ching until the
UNDERVOLTAGE LOCKOUT (UVLO)
temperature falls belo w typically 136 ℃ .Then the
To avoid mis-operation of the device at low inp ut
device starts switching again.
APPLICATION INFORMATION
INDUCTOR SELECTION
In normal operation, the inductor maintains continuous current to the output. The inductor current has
a ripple that is dependent on the inductance value. The high inductance reduces the ripple current.
Selected inductor by actual application:
Manufa Part Number Inductance
cturer
(uH)
Murata LQH44PN
2.2
3.3
4.7
10 0.16
LQH5BP
2.2
DRC max
(Ohms)
0.049
0.065
0.08
0.030
Dimensions
L*W*H(mm3)
4*4*1.7
5*5*2
TDK
WURT
H
SPM6530T
VLP6045
LT
744373
24022
744777004 4.7
3.3
4.7
10
2.2
3.3
4.7 0.036
2.2
3.3
4.7
10 0.055
2.2 0.061
0.044
0.058
0.106
0017
0.027
0.020
0.025
0.029
0.025
7.1*6.5*3
6*6*4.5
4.4*4.05
7.3*7.3*4.5
Table 1. Recommend Surface Mount Inductors
XySemi Inc
- 5 - www.xysemi.com
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| Páginas | Total 10 Páginas | |
| PDF Descargar | [ Datasheet XR2204D.PDF ] | |
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