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PDF uP1715 Data sheet ( Hoja de datos )
| Número de pieza | uP1715 | |
| Descripción | 340K High-Efficiency Synchronous-Rectified Buck Converter | |
| Fabricantes | uPI Semiconductor | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de uP1715 (archivo pdf) en la parte inferior de esta página. Total 10 Páginas | ||
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Conceptual
uP1715
2A, 23V, 340K High-Efficiency
Synchronous-Rectified Buck Converter
General Description
Features
The uP1715 is a high-efficiency synchronous-rectified 4.5V to 23V Input Voltage Range
buck converter with internal power switch. With internal Adjustable Output from 0.925V to 20V
low RDS(ON) switches, the high-efficiency buck converter
is capable of delivering 2A output current over a wide input
2A Output Current
voltage range from 4.5V to 23V. The output voltage is Accurate Reference: 0.925V ( + 1.5%)
adjustable from 0.925V to 20V by a voltage divider. Other Up to 93% Conversion Efficiency
features for the buck converter include adjust soft-start,
chip enable, over-voltage, under-voltage, over- Integrated Low RDS(ON) Upper and Lower MOSFET
temperature and over-current protections. It is available
Switches: 130mΩ
in a space saving SOP-8L package.
Current Mode PWM Operation
Applications
Constant 340kHz Fixed-Frequency Operation
Programmable Soft-Start
Battery-Powered Portable Devices
Integrated Boot Diode
MP3 Players
Over Voltage and Under Voltage Protection
Digital Still Cameras
Over Temperature and Over Current Protection
Wireless and DSL Modems
SOP-8L Package
Personal Information Appliances
RoHS Compliant and Halogen Free
802.11 WLAN Power Supplies
FPGA/ASIC Power Supplies
Pin Configuration
Laptop, Palmtops, Notebook Computers
Portable Information Appliances
Ordering Information
BOOT
VIN
LX
1
2
3
8 SS
7 EN
6 COMP
Order Number Package Type
Remark
GND
4
5 FB
uP1715PSA8
SOP-8L
SOP - 8L
Note: uPI products are compatible with the current IPC/
JEDEC J-STD-020 requirement. They are halogen-free,
RoHS compliant and 100% matte tin (Sn) plating that are
suitable for use in SnPb or Pb-free soldering processes.
uPI Semiconductor Corp., http://www.upi-semi.com
Rev. C03, File Name: uP1715-DS-C0300
1
1 page  
Conceptual
uP1715
Absolute Maximum Rating
Supply Input Voltage, VIN (Note 1) ----------------------------------------------------------------------------------------- -0.3V to +25V
LX Pin Voltage
DC --------------------------------------------------------------------------------------------------------------- -0.3V to +(VIN +0.3V)
<50ns ------------------------------------------------------------------------------------------------------------------ -3.5V to +28V
BOOT Pin Voltage ----------------------------------------------------------------------------------------------------- -0.3V to (VIN + 6.0V)
Other Pins ------------------------------------------------------------------------------------------------------------------------ -0.3V to 6V
Storage Temperature Range ---------------------------------------------------------------------------------------------- -65OC to +150OC
Junction Temperature -------------------------------------------------------------------------------------------------------------------- 150OC
Lead Temperature (Soldering, 10 sec) ------------------------------------------------------------------------------------------------ 260OC
ESD Rating (Note 2)
HBM (Human Body Mode) -------------------------------------------------------------------------------------------------------- 2kV
MM (Machine Mode) ---------------------------------------------------------------------------------------------------------------- 200V
Thermal Information
Package Thermal Resistance (Note 3)
SOP-8L θJA ------------------------------------------------------------------------------------------------------------------- 160°C/W
SOP-8L θJC -------------------------------------------------------------------------------------------------------------------- 39°C/W
Power Dissipation, PD @ TA = 25°C
SOP-8L ------------------------------------------------------------------------------------------------------------------------------ 0.62W
Recommended Operation Conditions
Operating Junction Temperature Range (Note 4) --------------------------------------------------------------------- -40OC to +125OC
Operating Ambient Temperature Range --------------------------------------------------------------------------------- -40OC to +85OC
(VIN = 12V, TA = 25OC, unless otherwise specified)
Electrical Characteristics
Parameter
Symbol Test Conditions
Min Typ Max Units
Supply Current
Supply Current
Shutdown Supply Current
Input Under Voltage Lockout Threshold
Input Under Voltage Lockout Threshold
Hysteresis
Reference
VEN = 3.0V, VFB = 1.0V
VEN = 0V
VIN rising
-- 1.3 1.5 mA
-- 0.3 3 uA
3.8 4.0 4.2 V
-- 600 -- mV
Feedback Voltage
Error Amplifier Voltage Gain
VFB
AEA
4.75V < VIN< 23V
0.911 0.925 0.939 V
-- 400 -- V/V
Error Amplifier Transconductance
GEA ΔIC = +/-10uA
-- 820 -- uA/V
COMP to Current Sense
Transconductance
GCS
-- 5.2 -- A/V
uPI Semiconductor Corp., http://www.upi-semi.com
Rev. C03, File Name: uP1715-DS-C0300
5
5 Page | ||
| Páginas | Total 10 Páginas | |
| PDF Descargar | [ Datasheet uP1715.PDF ] | |
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