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PDF SY7152A Data sheet ( Hoja de datos )
| Número de pieza | SY7152A | |
| Descripción | High Efficiency 1MHz 2A Step Up Regulator | |
| Fabricantes | Silergy | |
| Logotipo |  |
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Applications Note: SY7152A
High Efficiency 1MHz, 2A Step Up Regulator
Preliminary Specification
General Description
The SY7152A is a high efficiency, current-mode
control Boost regulator. The device integrates a 130mΩ
low RDS(ON) N-channel MOSFET for high efficiency.
The fixed 1MHz switching frequency and internal
compensation reduce external components size and
count. The build-in internal soft start circuitry
minimizes the inrush current at start-up.
The SY7152A is available in compact SOT23-6 package.
Ordering Information
SY7152 □(□□)□
Temperature Code
Package Code
Optional Spec Code
Temperature Range: -40°C to 85°C
Ordering Number Package type Note
SY7152AABC
SOT23-6
2A
Typical Applications
Features
• Wide input range: 3-8V bias input, 16Vout max
• 1MHz switching frequency
• Minimum on time: 100ns typical
• Minimum off time: 100ns typical
• Low RDS(ON): 130mΩ
• RoHS Compliant and Halogen Free
• Accurate Reference: 0.6VREF
• Compact package: SOT23-6
Applications
• WLED Drivers
• Networking cards powered from PCI or PCI-
express slots
Figure 1. Schematic Diagram
AN_SY7152A Rev.0.1
Figure 2. Efficiency vs Load Current
1
1 page  
Startup from VIN
(VIN=5V, VOUT=12V, IO=600mA)
VIN 5V/div
VO 10V/div
IO 0.5A/div
Time (2ms/div)
Startup from Enable
(VIN=3.3V, VOUT=5V, IO=1A)
EN 5V/div
VO 2V/div
IO 0.5A/div
Time (2ms/div)
Startup from Enable
(VIN=5V, VOUT=12V, IO=600mA)
EN 5V/div
VO 10V/div
IO 0.5A/div
Time (2ms/div)
AN_SY7152A Rev.0.1
昱灿电子 www.szyucan.com
SY7152A
Shutdown from VIN
(VIN=5V, VOUT=12V, IO=600mA)
VIN 5V/div
VO 10V/div
IO 0.5A/div
Time (2ms/div)
Shutdown from Enable
(VIN=3.3V, VOUT=5V, IO=1A)
EN 5V/div
VO 2V/div
IO 0.5A/div
Time (40µs/div)
Shutdown from Enable
(VIN=5V, VOUT=12V, IO=600mA)
EN 5V/div
VO 10V/div
IO 0.5A/div
Time (200µs/div)
5
5 Page | ||
| Páginas | Total 10 Páginas | |
| PDF Descargar | [ Datasheet SY7152A.PDF ] | |
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