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PDF TD1465 Data sheet ( Hoja de datos )
| Número de pieza | TD1465 | |
| Descripción | 40V 600mA 2MHz/1MHz synchronous Buck Converter | |
| Fabricantes | Techcode | |
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Techcode®
DATASHEET
40V 600mA 2MHz/1MHz synchronous Buck Converter TD1465
TD8325
General Description
Features
TD1465 is a 600mA synchronous buck converter with
integrated 900mΩ power MOSFETs. The TD1465 design
with a current-mode control scheme, can convert wide input
voltage of 4.5V to 40V to the output voltage adjustable from
0.8V to 75%VIN to provide excellent output voltage
regulation.
The TD1465 equipped with Power-on-reset, soft start and
whole protections (under-voltage, over temperature and
current-limit) into a single package.
This device, available SOT-23-6 provides a very compact
system solution of external components and PCB area.
Wide Input Voltage from 4.5V to 40V
600mA Output Current
High Efficiency over 85% from Load Current 30mA
to 100mA @ VOUT>=5V
Low EMI Converter
Adjustable Output Voltage from 0.8V to 75%VIN
Integrated 900mΩ High/Low Side MOSFET
1M or 2Mhz Switching Frequency
Stable with Low ESR Capacitors
Power-On-Reset Detection
Over-Temperature Protection
Current-Limit Protection
Enable/Shutdown Function
Available in SOT-23-6 packages
Lead Free and Green Devices Available (RoHS
compliant).
Applications
Smart Electronic equipments
Package Types
SOT23-6
Pin Configurations
BS 1
GND 2
FB 3
(Top view)
6 SW
5 VIN
4 EN
March, 12, 2014.
Techcode Semiconductor Limited
1
www.techcodesemi.com
1 page  
Techcode®
DATASHEET
40V 600mA 2MHz/1MHz synchronous Buck Converter TD1465
TD8325
TJ Junction Temperature
-40 ~ 125
oC
Note 3: Refer to the typical application circuit
Note 4: In applications where he VOUT/VIN ratio exceeds the Maximum Ratio and when output loading is sufficient to make the converter enter PWM mode, the VOUT
voltage will probably drop.
Note 5: When operating below the VOUT/VIN Minimum Ratio, the converter has the likelihood of entering PSM mode in spite of loading is heavy. However, In PSM mode, the VOUT
voltage is still regulated well.
Electrical Characteristics
Unless otherwise specified, these specifications apply over VIN=12V, VEN=3V and TA = -40 to 85ºC. Typical values are at TA=25ºC
Symbol
Parameter
Test Conditions
TD1465A/B
Min Typ Max
SUPPLY CURRENT
IVIN VIN Supply Current
VFB=1V, SW=NC
- 0.85 1.2
IVIN_SD VIN Shutdown Supply Current
VEN=0V
- 1 10
POWER-ON-RESET (POR)
VIN POR Voltage Threshold
VIN Rising
3.7 3.9 4.1
VIN POR Hysteresis
- 0.6 -
REFERENCE VOLTAGE
VREF Reference Voltage
- 0.8 -
Output Voltage Accuracy
TJ=25°C, IOUT=10mA
-3 - +3
IFB FB input current
- 10 50
OSCILLATOR AND DUTY CYCLE
FSW Switching Frequency
TD1465B
TD1465A
1600
800
2000
1000
2400
1200
Minimum on-time
- 60 80
Unit
mA
µA
V
V
V
%
nA
kHz
kHz
ns
March, 12, 2014.
Techcode Semiconductor Limited
5
www.techcodesemi.com
5 Page | ||
| Páginas | Total 10 Páginas | |
| PDF Descargar | [ Datasheet TD1465.PDF ] | |
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