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AUR9719 데이터시트 PDF




BCD에서 제조한 전자 부품 AUR9719은 전자 산업 및 응용 분야에서
광범위하게 사용되는 반도체 소자입니다.


PDF 형식의 AUR9719 자료 제공

부품번호 AUR9719 기능
기능 STEP DOWN DC-DC CONVERTER
제조업체 BCD
로고 BCD 로고


AUR9719 데이터시트 를 다운로드하여 반도체의 전기적 특성과 매개변수에 대해 알아보세요.




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AUR9719 데이터시트, 핀배열, 회로
Data Sheet
1.5MHz, 2A, STEP DOWN DC-DC CONVERTER
AUR9719
General Description
The AUR9719 is a high efficiency step-down
DC-DC voltage converter. The chip operation is
optimized by peak-current mode architecture with
built-in synchronous power MOS switchers. The
oscillator and timing capacitors are all built-in
providing an internal switching frequency of
1.5MHz that allows the use of small surface mount
inductors and capacitors for portable product
implementations.
Integrated Soft Start (SS), Under Voltage Lock Out
(UVLO), Thermal Shutdown Detection (TSD) and
Short Circuit Protection are designed to provide
reliable product applications.
The device is available in adjustable output voltage
versions ranging from 0.8V to 9×VIN when input
voltage range is from 2.7V to 5.5V , and is able to
deliver up to 2.0A.
The AUR9719 is available in DFN-3×3-6 package.
Features
• High Efficiency Buck Power Converter
• Output Current: 2A
• Low RDS(ON) Internal Switch: 100m
• Adjustable Output Voltage from 0.8V to 9×VIN
• Wide Operating Voltage Range: 2.7V to 5.5V
• Built-in Power Switches for Synchronous
Rectification with High Efficiency
• 800mV Feedback Voltage
• 1.5MHz Constant Frequency Operation
• Thermal Shutdown Protection
• Low Drop-out Operation at 90% Duty Cycle
• No Schottky Diode Required
Applications
• LCD TV
• Set Top Box
• Post DC-DC Voltage Regulation
• PDA and Notebook Computers
DFN-3×3-6
Nov. 2011 Rev. 1. 0
Figure 1. Package Type of AUR9719
BCD Semiconductor Manufacturing Limited
1




AUR9719 pdf, 반도체, 판매, 대치품
1.5MHz, 2A, STEP DOWN DC-DC CONVERTER
Absolute Maximum Ratings (Note 1)
Data Sheet
AUR9719
Parameter
Supply Input Voltage (VIN_SW)
Supply Input Voltage (VIN_A)
Voltage from VIN_SW to VIN_A Pin
SW Pin Switch Voltage
SW Pin Switch Current
Enable Voltage
Power Dissipation (On PCB, TA=25°C)
Thermal Resistance (Junction to Ambient, Simulation)
Operating Junction Temperature
Operating Temperature
Storage Temperature
ESD (Human Body Model)
ESD (Machine Model)
Symbol
VIN_SW
VIN_A
VIN(SW_A)
VSW
ISW
VEN
PD
θJA
TJ
TOP
TSTG
VHBM
VMM
Value
0 to 6.0
0 to 6.0
-0.3 to 0.3
-0.3 to
VIN_SW+0.3
3.2
-0.3 to
VIN_A+0.3
2.49
40.11
150
-40 to 85
-55 to 150
2000
200
Unit
V
V
V
V
A
V
W
°C/W
°C
°C
°C
V
V
Note 1: Stresses greater than those 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 under “Recommended Operating Conditions” is not implied. Exposure to “Absolute
Maximum Ratings” for extended periods may affect device reliability.
Recommended Operating Conditions
Parameter
Supply Input Voltage
Junction Temperature Range
Ambient Temperature Range
Symbol
VIN
TJ
TA
Min
2.7
-20
-40
Max
5.5
125
80
Unit
V
°C
°C
Nov. 2011 Rev. 1. 0
BCD Semiconductor Manufacturing Limited
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AUR9719 전자부품, 판매, 대치품
1.5MHz, 2A, STEP DOWN DC-DC CONVERTER
Typical Performance Characteristics (Continued)
Data Sheet
AUR9719
100
90
80
70
60
50
40
30
20
10
0
0.0
V =4.2V
IN
V =5.0V
IN
V =5.5V
IN
V =3.3V
OUT
0.5 1.0 1.5
Output Current (A)
2.0
1.03
1.02
1.01
1.00
0.99
0.98
0.97
0.0
V =3.3V
IN
V =4.2V
IN
V =5.0V
IN
V =5.5V
IN
V =1.0+0.03V
OUT
0.5 1.0 1.5
Output Current (A)
2.0
Figure 8. Efficiency vs. Output Current (VOUT=3.3V)
Figure 9. Load Regulation (VOUT=1.0±0.03V)
1.24
1.23
1.22
1.21
1.20
1.19
1.18
1.17
1.16
0.0
V =3.3V
IN
V =4.2V
IN
V =5.0V
IN
V =5.5V
IN
V =1.2+0.03V
OUT
0.5 1.0 1.5
Output Current (A)
2.0
1.85
1.84
1.83
1.82
1.81
1.80
1.79
1.78
1.77
1.76
1.75
0.0
V =3.3V
IN
V =4.2V
IN
V =5.0V
IN
V =5.5V
IN
V =1.8+0.03V
OUT
0.5 1.0 1.5
Output Current (A)
2.0
Figure 10. Load Regulation (VOUT=1.2±0.03V)
Figure 11. Load Regulation (VOUT=1.8±0.03V)
Nov. 2011 Rev. 1. 0
BCD Semiconductor Manufacturing Limited
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