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PDF CAT7105 Data sheet ( Hoja de datos )
| Número de pieza | CAT7105 | |
| Descripción | 2.0A High Efficiency Step-Down DC/DC Converter | |
| Fabricantes | ITE Tech | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de CAT7105 (archivo pdf) en la parte inferior de esta página. Total 14 Páginas | ||
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CAT7105
2.0A 410kHz 23V High Efficiency Step-Down DC/DC
Converter
Preliminary Specification V0.3.6
ITE TECH. INC.
This specification is subject to Change without notice. It is provided “AS IS” and for reference only. For
purchasing information, please contact the nearest ITE TECH sales representatives.
1 page  
CAT7105
Absolute Maximum Ratings
Input Supply Voltage…………..GND - 0.3V to +25V
SW Voltage…………………………...- 1 to VIN+0.3V
EN Voltage……….…………………..- 1 to VIN+0.3V
Other Pins………………………………- 0.3V to +6V
Boost Voltage ………..……………….Vsw+6V (<30V)
SW Peak Current………………………………….4.5 A
ESD Classification……………………………..Class 2
Junction Temperature Range…………………...150°C
Storage Temperature Range…………-65oC to 150°C
Lead Temperature (Soldering 10s)…………….260°C
Confidential Information
Recommended Operating Conditions
Supply Voltage (VIN)……………………4.75V to 23V
Operating Temperature……………..–40°C to +85°C
Thermal Resistance
SOP8 (3.90*4.85*1.45mm)
θJA
91
θJC
43 °C/W
Note 1: Stresses beyond above listed under absolute maximum ratings may cause permanent damage to the device. These
are stress ratings only and functional operation of the device at these or any other conditions beyond those indicated in the
operational sections of the specifications are not implied. Exposure to absolute maximum rating conditions for extended
periods may remain possibility to affect device reliability.
Note 2: Guaranteed by design, not production tested.
DC Electrical Characteristics
(Recommended Operating Conditions, Unless Otherwise Noted; VIN = 12V; TA = 25 oC)
Parameter
Conditions
Min.
Typ.
Max.
Unit
Supply Voltage
4.75
23 V
Shutdown Supply Current
Regulated Feedback Voltage
Error Amplifier Transconductance
Current Sense to COMP
Transconductance
Current Limit
SW Leakage Current
High Side On Resistance
Low Side On Resistance
Oscillation Frequency
Short
Circuit
Oscillation
Frequency
VEN = 0V
4.75V≦VIN≦23V
△ICOMP = ±10μA
VEN = 0V, VSW = 0V
I
VFB=0V
1.17
500
25
1.23
800
3.8
3
0.25
10
410
40
50
1.27
1120
10
μA
V
μA/V
A/V
A
μA
Ω
Ω
kHz
kHz
Maximum Duty Cycle
VFB=1.0V
90 %
Minimum Duty Cycle
Under Voltage Lockout Threshold
Under Voltage Lockout Threshold
Hysteresis
Thermal Shutdown Threshold
EN High Level
VFB=1.5V
VIN Rising
0%
3.9 4.1 4.3 V
200 mV
160
3
℃
V
EN Low Level
0.9 V
EN Input Current
VEN = 0V
1.1 1.8 2.5 μA
Note: Fully production test at +25°C. Specifications over the temperature range are guaranteed by design and
characterization
www.ite.com.tw
3
CAT7105 V0.3.6
5 Page 
CAT7105
Classification Reflow Profiles
Reflow Profile
Average Ramp-Up Rate (Tsmax to Tp)
Preheat
-Temperature
-Temperature
-Time(tsmin to ts tsmax)
Min(Tsmin)
Max(Tsmax)
Confidential Information
Green Assembly
3℃/second max.
150℃
200℃
60-120 seconds
Time
-Temperature(TL)
-Time(tL)
maintained
Peak Temperature(Tp)
Time within 5 ℃ of actual Peak Temperature(tp)
Ramp-Down Rate
Time 25℃ to Peak Temperature
above:
217℃
60-150 seconds
260 +0/-5 ℃
10-30 seconds
6℃/second max.
8 minutes max.
Note: For all temperature information, please refer to topside of the package, measured on the package body
surface.
www.ite.com.tw
9
CAT7105 V0.3.6
11 Page | ||
| Páginas | Total 14 Páginas | |
| PDF Descargar | [ Datasheet CAT7105.PDF ] | |
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