SY8008A/SY8008B/SY8008C

High Efficiency 1.5MHz, 0.6A/1A/1.2A

Synchronous Step Down Regulator

Preliminary Spec

SY8008Rev. # 0.91

Silergy Corp. Confidential- Prepared for Internal Use Only

1

General Description

The SY8008A, SY8008B and SY8008C are high-

efficiency 1.5MHz synchronous step-down DC-DC

regulator ICs capable of delivering up to 1.2A output

currents. The SY8008 family 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.

Low output voltage ripple and small external inductor

and

capacitor

sizes

are achieved

with

1.5MHz

switching frequency. This along with small SOT-

23/TSOT-23

footprint

provides

small

PCB

area

application.

Applications

• Portable Navigation Device

• Smart phone

• USB Dongle

• Set Top Box

• Media Player

Features

• low Rds(on) for internal switches (top/bottom)

ο SY8008A: 300m /250m , 0.6A

ο SY8008B: 250m /200m , 1A

ο SY8008C: 200m /150m , 1.2A

• 2.5-5.5V input voltage range

• 1.5MHz switching frequency minimizes the

external components

• Internal softstart limits the inrush current

• 100% dropout operation

• RoHS Compliant and Halogen Free

• Compact package: SOT23-5/ TSOT23-5 pin

Ordering Information

Temperature Code

C: -40

°C~85°C

Package Code:

AA:SOT23-5

AC:TSOT23-5

Spec Code

SY8008□

□

□

□(□□

□□

□□

□□)□

□

□

□

Typical Applications

LX

IN

GND

FB

EN

C

IN

L

Figure 1

Figure 2.

Efficiency vs Load Current