SY7069 Datasheet PDF Download, Silergy





(PDF) SY7069 Datasheet Download

Part Number SY7069
Description 1MHz Synchronous Boost
Manufacture Silergy
Total Page 10 Pages
PDF Download Download SY7069 Datasheet PDF

Features: Application Note: SY7069 5.5V Maximum Ou tput, 3A Valley Current, 1MHz Synchrono us Boost with Auto Bypass Function Gen eral Description SY7069 is a high effic iency, synchronous, step-up boost conve rter designed for one-cell Li-Ion or Li polymer, or a two to three-cell alkalin e Ni-Cd or NiMH battery powered applica tions. It can convert down to 2.5V inpu t voltage and up to 5.5V output voltage . It adopts NMOS for the main switch an d PMOS for the synchronous switch. SY70 69 can disconnect the output from input during the shutdown mode. When input v oltage exceeds the regulated output vol tage, SY7069 enters bypass mode automat ically. Ordering Information SY7069 (□□)□ Temperature Code Package Code Optional Spec Code Ordering Numbe r SY7069ADC Package type TSOT23-6 Not e ---- Features  2.5V minimum input voltage  Adjustable output voltage from 2.5V to 5.5V  Min 3A valley cur rent limit  Capable for seamless tra nsition between boost and bypass mode  Load disconnect during shutdown  Low R.

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Application Note: SY7069
5.5V Maximum Output, 3A Valley Current, 1MHz
Synchronous Boost with Auto Bypass Function
General Description
SY7069 is a high efficiency, synchronous, step-up
boost converter designed for one-cell Li-Ion or Li-
polymer, or a two to three-cell alkaline Ni-Cd or Ni-
MH battery powered applications. It can convert down
to 2.5V input voltage and up to 5.5V output voltage. It
adopts NMOS for the main switch and PMOS for the
synchronous switch.
SY7069 can disconnect the output from input during
the shutdown mode. When input voltage exceeds the
regulated output voltage, SY7069 enters bypass mode
automatically.
Ordering Information
SY7069 □(□□)□
Temperature Code
Package Code
Optional Spec Code
Ordering Number
SY7069ADC
Package type
TSOT23-6
Note
----
Features
2.5V minimum input voltage
Adjustable output voltage from 2.5V to 5.5V
Min 3A valley current limit
Capable for seamless transition between boost and
bypass mode
Load disconnect during shutdown
Low RDS(ON) (main switch/synchronous switch) at
5.0V output: 50mΩ/90mΩ
Output OVP protection
Compact package TSOT23-6 package
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
AN_SY7069 Rev. 0.9 Silergy Corp. Confidential- Prepared for Customer Use Only
1

                    
        






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