AUR9716 Datasheet PDF - BCD
| Part Number | AUR9716 | |
| Description | STEP DOWN DC-DC CONVERTER | |
| Manufacturers | BCD | |
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Data Sheet
1.0MHz to 1.4MHz, 2A, STEP DOWN DC-DC CONVERTER
AUR9716
General Description
The AUR9716 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. It is
automatically switching between the normal PWM
mode and LDO mode to offer improved system
power efficiency covering a wide range of loading
conditions.
Switching frequency during 1.0MHz to 1.4MHz is set
by an external resistor and 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 VIN when input
voltage range is from 2.5V to 5.5V , and is able to
deliver up to 2A.
The AUR9716 is available in DFN-3×3-8 package.
Features
• High efficiency Buck Power Converter
• Low Quiescent Current
• 2A Output Current
• Low RDS(ON) Internal Switches: 110mΩ
• Adjustable Output Voltage from 0.8V to VIN
• Wide Operating Voltage Range: 2.5V to 5.5V
• Built-in Power Switches for Synchronous
Rectification with high Efficiency
• 800mV Feedback Voltage Allows output
• Programmable Frequency: 1.0MHz to 1.4MHz
• Thermal Shutdown Protection
• Low Drop-out Operation at 100% Duty Cycle
• No Schottky Diode Required
Applications
• LCD TV
• Post DC-DC Voltage Regulation
• PDA and Notebook Computers
Apr. 2012 Rev. 1. 0
DFN-3×3-8
Figure 1. Package Type of AUR9716
BCD Semiconductor Manufacturing Limited
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Data Sheet
1.0MHz to 1.4MHz, 2A, STEP DOWN DC-DC CONVERTER
AUR9716
Electrical Characteristics
VIN=5V, VFB=0.8V, fOSC=1.4MHz, L=1.5µH, CIN=10µF, COUT=10µF, TA=25°C, unless otherwise specified.
Parameter
Input Voltage Range
Shutdown Current
Active Current
Regulated Feedback Voltage
Regulated Output Voltage
Peak Inductor Current
Oscillator Frequency
P_MOSFET RON
N_MOSFET RON
EN Input High-Threshold
Voltage
EN Input Low-Threshold
Voltage
EN Input Current
Soft-start Time
Maximum Duty Cycle
Under Voltage Lock Out
Threshold
Thermal Shutdown
Error Amplifier
Conductance
Current Sense
Resistance
Trans
Trans
Symbol
VIN
IOFF
ION
VFB
∆VOUT
/VOUT
IPK
fOSC
RDSON(P)
RDSON(N)
VENH
VENL
IEN
tSS
DMAX
VUVLO
TSD
gm
RT
Test Condition
VEN=0V
VFB=0.95V
For adjustable output voltage
VIN=2.5V to 5.5V,
IOUT=0A to 2A
VFB=0.7V
ROSC=5.1MΩ
Adjustable switching frequency
ISW=0.5A
ISW=0.5A
Enable Threshold
Shutdown Threshold
VIN Rising
VIN Falling
Hysteresis
Hysteresis=30°C
Min
2.5
0.784
-3
2.2
1.12
1.0
90
90
1.5
100
Typ Max Unit
5.5 V
0.1 1 µA
460 µA
0.8 0.816 V
3%
3.2 3.7 A
1.4 1.68
MHz
1.4
110 130 mΩ
110 130 mΩ
V
0.4 V
2 µA
800 µs
%
2.4
2.3 V
0.1
150 °C
3000
µs
5Ω
Apr. 2012 Rev. 1. 0
BCD Semiconductor Manufacturing Limited
5
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Part DetailsOn this page, you can learn information such as the schematic, equivalent, pinout, replacement, circuit, and manual for AUR9716 electronic component. |
| Information | Total 15 Pages | |
| Link URL | [ Copy URL to Clipboard ] | |
| Download | [ AUR9716.PDF Datasheet ] | |
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