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PDF TD2786 Data sheet ( Hoja de datos )
| Número de pieza | TD2786 | |
| Descripción | 3A 30V Synchronous Rectified Step-Down Converter | |
| Fabricantes | Techcode | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de TD2786 (archivo pdf) en la parte inferior de esta página. Total 16 Páginas | ||
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T echcode®
3A
30V
Synchronous
Rectified
Step-Down
Converter
DATASHEET
TD2786
General Description
Features
TD2786 is a 3A synchronous buck converter with integrated
power MOSFETs. The TD2786 design with a current‐mode
control scheme, can convert wide input voltage of 4.5V to
30V to the output voltage adjustable from 0.92V to 28V to
provide excellent output voltage regulation.
The TD2786 is equipped with an automatic PFM/PWM mode
operation. At light load, the IC operates in the PFM mode to
reduce the switching losses. At heavy load, the IC works in
PWM mode.
The TD2786 is also equipped with Power‐on‐reset, soft‐ start,
and whole protections (over‐temperature, and current‐limit)
into a single package.
This device, available ESOP‐8, provides a very compact
system solution external components and PCB area.
Wide Input Voltage from 4.5V to 30V
3A Continuous Output Current
Adjustable Output Voltage from 0.92V to 28V
Integrated N‐MOSFET
Fixed 340kHz Switching Frequency
PFM/PWM mode Operation
Stable with Low ESR Capacitors
Power‐On‐Reset Detection
Programmable Soft‐Start
Over‐Temperature Protection
Over‐Voltage Protection
Current‐Limit Protection with Frequency Foldback
Enable/Shutdown Function
Lead Free and Green Devices Available(RoHS
Compliant)
Applications
Distributed Power Systems
Networking Systems
FPGA, DSP, ASIC Power Supplies
Green Electronics/ Appliances
Notebook Computers
Pin Configurations
Figure1 Pin Configuration of TD2786(Top View)
July, 29, 2014. Techcode Semiconductor Limited www.techcodesemi.com
1
1 page  
T echcode®
3A
30V
Synchronous
Rectified
Step-Down
Converter
CURRENT‐MODE PWM CONVERTER
Error Amplifier Transconductance
Gm
Error Amplifier Voltage Gain
Switch Current to COMP Voltage
Transconductance
PROTECTIONS
High Side MOSFET Current‐Limit
ILIM
Over‐Temperature Trip Point
TOTP
Over‐Temperature Hysteresis
Over‐Voltage Protection
SOFT‐START, ENABLE AND INPUT CURRENTS
Soft‐Start Current
EN Enable Threshold Voltage
EN Under‐Voltage Lockout (UVLO)
Threshold
EN UVLO Hysteresis
COMP=NC
Peak Current
VIN=4.5~28V
VEN rising
‐
‐
‐
‐
‐
‐
‐
‐
0.4
2.3
‐
DATASHEET
TD2786
820 ‐ uA/V
80 ‐ V/V
5.2 ‐ A/V
5.6 ‐
160 ‐
50 ‐
120 ‐
6 ‐
‐ 2
2.5 2.7
200 ‐
A
℃
℃
%
uA
V
V
mV
July, 29, 2014. Techcode Semiconductor Limited www.techcodesemi.com
5
5 Page 
T echcode®
3A
30V
Synchronous
Rectified
Step-Down
Converter
DATASHEET
TD2786
July, 29, 2014. Techcode Semiconductor Limited www.techcodesemi.com
11
11 Page | ||
| Páginas | Total 16 Páginas | |
| PDF Descargar | [ Datasheet TD2786.PDF ] | |
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