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PDF SY8088AAC Data sheet ( Hoja de datos )
| Número de pieza | SY8088AAC | |
| Descripción | 1A Synchronous Step Down Regulator | |
| Fabricantes | Silergy | |
| Logotipo |  |
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Application Notes: AN_SY8088
High Efficiency 1.5MHz, 1A
Synchronous Step Down Regulator
Preliminary Specification
General Description
SY8088 is a high efficiency 1.5MHz synchronous step
down DC/DC regulator IC capable of delivering up to
1A output current. It can operate over a wide input
voltage range from 2.5V to 5.5V and integrate main
switch and synchronous switch with very low RDS (ON)
to minimize the conduction loss.
Ordering Information
SY8088 □(□□)□
Temperature Code
Package Code
Optional Spec Code
Temperature Range: -40°C to 85°C
Ordering Number Package Type Note
SY8088AAC
SOT23-5
1A
Features
• Low RDS(ON) for internal switches (top/bottom)
260mΩ/170mΩ
• 2.5~5.5V input voltage range
• 40µA typical quiescent current
• High light load efficiency
• High switching frequency 1.5MHz minimizes the
external components
• Internal soft-start limits the inrush current
• 100% dropout operation
• RoHS Compliant and Halogen Free
• Compact package: SOT23-5
Applications
• Portable Navigation Device
• Set Top Box
• USB Dongle
• Media Player
• Smart phone
Typical Application
Figure1. Schematic Diagram
95
90
85
80
75
70
1
Efficiency vs. Load Current
VIN=3.3V,VOUT=1.8V
VIN=4.2V,VOUT=1.8V
VIN=5.0V,VOUT=1.8V
10 100
Load Current (mA)
1000
Figure2. Efficiency
AN_SY8088 Rev. 0.1
Silergy Corp. Confidential- Prepared for Customer Use Only
1
1 page  
Startup from Enable
(VIN=5.0V, VOUT=1.8V, ILOAD=1.0A)
EN 5.0V/div
VOUT 1.0V/div
LX 5.0V/div
IL 1.0A/div
Time (400µs/div)
AN_SY8088
Shutdown from Enable
(VIN=5.0V, VOUT=1.8V, ILOAD=1.0A)
EN 5.0V/div
VOUT 1.0V/div
LX 5.0V/div
IL 1.0A/div
Time (40µs/div)
AN_SY8088 Rev. 0.1
Silergy Corp. Confidential- Prepared for Customer Use Only
5
5 Page | ||
| Páginas | Total 8 Páginas | |
| PDF Descargar | [ Datasheet SY8088AAC.PDF ] | |
Hoja de datos destacado
| Número de pieza | Descripción | Fabricantes |
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