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SYR828 Datasheet Preview

SYR828 Datasheet

Synchronous Step Down Regulator

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SYR828
High Efficiency 5.5V, 6A, 2.4MHz
I2C Programmable, Synchronous Step Down Regulator
Preliminary Specification
General Description
SYR828 is a high efficiency 2.4MHz synchronous step
down DC/DC regulator IC capable of delivering up to 6A
output currents. It can operate over a wide input voltage
range from 2.6V to 5.5V and integrate main switch and
synchronous switch with very low RDS (ON) to minimize the
conduction loss. The output voltage can be programmed
from 0.7125V to 1.5V through I2C interface.
SYR828 is in a space saving, low profile CSP1.56*1.96-20
package.
Ordering Information
SYR827 (□□)
Temperature Code
Package Code
Optional Spec Code
Ordering Number Package Type Slave Address
SYR828PKC CSP1.56*1.96-20
0x41H
Features
Input voltage range: 2.6V to 5.5V
2.4 MHz switching frequency minimizes the external
components
Typical 65uA quiescent current
Low RDS(ON) for internal switches (PFET/NFET):
28m/17m
Programmable Output Voltage: 0.7125V to 1.5V in
12.5mV steps
6A continuous output current capability.
Capable for 0.25uH inductor and 22uF Ceramic
Capacitor.
Hic-cup mode protection for hard short condition
RoHS Compliant and Halogen Free
Compact package: CSP1.56*1.96-20
Applications
Smart-phone
Web-tablets
Typical Applications
Figure 1. Schematic Diagram
SYR828 Rev.0.1 Silergy Corp. Confidential-Prepared for Customer Use Only
1




Silergy

SYR828 Datasheet Preview

SYR828 Datasheet

Synchronous Step Down Regulator

No Preview Available !

Pinout (top view)
SYR828
Part Number
SYR828PKC
Package type
CSP1.56*1.96-20
Top Mark
Bc xyz
Note① : x=year code, y=week code, z= lot number code.
Pin
D1,D2,E1,E2
Pin Name
VIN
D3,D4,E3,E4
SW
B2,B3,C1,C2,C3,C4 GND
A1 VSEL
A2 EN
B1 SDA
B4 AGND
A3 SCL
A4 VOUT
Pin Description
Power input pin. These pins must be decoupled to ground with at least
22uF ceramic capacitor. The input capacitor should be placed as close
as possible between VIN and GND pins.
Switching node pin. Connect these pins to the switching node of
inductor.
Power ground pins.
Voltage select pin. When this pin is low, VOUT is set by the VSEL0
register. When this pin is high, VOUT is set by the VSEL1 register.
Enable control pin. Active high. Do not leave it floating.
I2C interface clock line.
Analog ground pin.
I2C interface Bi-directional Data line.
Sense pin for output. Connect to the output capacitor side.
SYR828 Rev. 0.1 Silergy Corp. Confidential- Prepared for Customer Use Only 2


Part Number SYR828
Description Synchronous Step Down Regulator
Maker Silergy
Total Page 10 Pages
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