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PDF SY7066 Data sheet ( Hoja de datos )
| Número de pieza | SY7066 | |
| Descripción | 1.8V Minimum Input and 5.5V Maximum Output 6A Peak Current Synchronous Boost | |
| Fabricantes | Silergy | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de SY7066 (archivo pdf) en la parte inferior de esta página. Total 9 Páginas | ||
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Application Note: AN_SY7066
1.8V Minimum Input and 5. 5V Maximum Output
6A Peak Current Synchronous Boost with Output Disconnect
Preliminary Specification
General Description
SY7066 is a high efficiency synchronous boost
regulator that converts down to 1.8V input and up to
5.5V output voltage. It adopts NMOS for the main
switch and PMOS for the synchronous switch. It can
disconnect the output from input during the shutdown
mode.
Ordering Information
SY7066 □(□□)□
Temperature Code
Package Code
Optional Spec Code
Temperature Range: -40°C to 85°C
Ordering Number Package type
SY7066QMC QFN2X2-10
Note
----
Features
• 1.8V Minimum input voltage
• Adjustable output voltage from 2.5V to 5. 5V
• 6A peak current limit
• Input under voltage lockout
• Load disconnect during shutdown
• Output over voltage protection
• Input battery voltage monitor
• Low RDS(ON) (main switch/synchronous switch)
at 5.0V output: 20/40mohm
• Compact package: QFN2x2-10
Applications
• All Single Cell Li or Dual Cell Battery
Operated Products as MP-3 Player, PDAs, and
Other Portable Equipment.
Typical Applications
Figure 1. Schematic Diagram
Figure 2. Efficiency Figure
AN_SY7066 Rev. 0.5 Silergy Corp. Confidential- Prepared for Internal Use Only
1
1 page  
Typical Performance Characteristics
Efficiency vs. Load Current
100
98
96
94
92
90
88
86
84
0.0
VIN=2.0V,VOUT=5.0V
VIN=3.3V,VOUT=5.0V
VIN=4.2V,VOUT=5.0V
1.0 2.0 3.0 4.0
Load Current (A)
5.0
Steady State
(VIN=3.3V,VOUT=5.0V, ILOAD=0.1A)
LX 2V/div
AN_SY7066
Steady State
(VIN=3.3V, VOUT=5.0V, ILOAD=0A)
LX 2V/div
IL 1A/div
Time (4µs/div)
IL 1A/div
Time (10µs/div)
Load Transient
(VIN=3.3V, VOUT=5.0V, ILOAD=0.3-2.8A)
VOUT (AC)
0.2V/div
IL 2.0A/div
Time (200µs/div)
Short Circuit
(VIN=3.3V, VOUT=5.0V, ILOAD=0.3A to Short Circuit)
VOUT (AC)
2V/div
IL 2.0A/div
Time (1ms/div)
AN_SY7066 Rev. 0.5 Silergy Corp. Confidential- Prepared for Customer Use Only 5
5 Page | ||
| Páginas | Total 9 Páginas | |
| PDF Descargar | [ Datasheet SY7066.PDF ] | |
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