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What is SY8009B?

This electronic component, produced by the manufacturer "Silergy", performs the same function as "(SY8009A/B) Synchronous Step Down Regulator".


SY8009B Datasheet PDF - Silergy

Part Number SY8009B
Description (SY8009A/B) Synchronous Step Down Regulator
Manufacturers Silergy 
Logo Silergy Logo 


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SY8009A/SY8009B
High Efficiency 1.5MHz/1MHz, 1.5A/2A
Synchronous Step Down Regulator
General Description
The SY8009A and SY8009B are high-efficiency, high
frequency synchronous step-down DC-DC regulator
ICs capable of delivering up to 1.5A/2A output
currents. The SY8009 family operate over a wide input
voltage range from 3V to 5.5V and integrate main
switch and synchronous switch with very low RDS(ON)
to minimize the conduction loss.
Low output voltage ripple and small external inductor
and capacitor sizes are achieved with greater than
1MHz switching frequency.
Ordering Information
SY8009(□□)
Temperature Code
Package Code
Optional Spec Code
Temperature Range: -40°C to 85°C
Ordering Number
SY8009AAAC
SY8009BABC
SY8009BEBC
Package type
SOT23-5
SOT23-6
SSOT23-6
Note
1.5A
2A
2A
Features
Low RDS(ON) for internal switches (top/bottom)
SY8009A: 180mΩ/120mΩ, 1.5A, SOT23-5
SY8009B:100mΩ/80mΩ,2.0A
SOT23-6, SSOT23-6
3-5.5V input voltage range
High switching frequency minimizes the external
components
SY8009A: 1.5MHz
SY8009B: 1MHz
Internal softstart limits the inrush current
100% dropout operation
RoHS Compliant and Halogen Free
Compact package: SOT23-5, SOT23-6 and Super
SOT23-6 are pin-compatible. Other packages are
available upon requests
Applications
LCD TV
Set Top Box
Net PC
Mini-Notebook PC
Access Point Router
Typical Applications
ON/ OFF
VIN
IN
CIN
EN
GND
LX
FB
L
R1
R2
VOUT
C1(opt.)
COUT
Figure 1.Schematic diagram
96
94 VOUT=1.8V
92
90
88
86
84 VIN=3.3V
82 VIN=4.2V
VIN=5.5V
80
0 0.4 0.8 1.2 1.6 2
Load Current (A)
Figure 2. Efficiency vs Load Current
SY8009A/B Rev1.0
Silergy Corp. Confidential- Prepared for Customer Use Only 1
Free Datasheet http://www.Datasheet4U.com

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SY8009B equivalent
SY8009A/SY8009B
SOT23-6 Package outline & PCB layout design
1.90
2.80 - 3.10
0.95 0.60
Recommended Pad Layout
0.30 - 0.50
1.0 - 1.3
0.3 - 0.6
0.95 TYP
1.90 TYP
Notes: All dimensions are in millimeters.
All dimensions don’t include mold flash & metal burr.
SY8009A/B Rev1.0
Silergy Corp. Confidential- Prepared for Customer Use Only 5
Free Datasheet http://www.Datasheet4U.com


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On this page, you can learn information such as the schematic, equivalent, pinout, replacement, circuit, and manual for SY8009B electronic component.


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Featured Datasheets

Part NumberDescriptionMFRS
SY8009The function is Synchronous Step Down Regulator. SilergySilergy
SY8009AThe function is (SY8009A/B) Synchronous Step Down Regulator. SilergySilergy
SY8009BThe function is (SY8009A/B) Synchronous Step Down Regulator. SilergySilergy

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