Datasheet > FAN53701

FAN53701

更新时间： 2024-09-27 01:10:19

品牌	Logo	应用领域
安森美 - ONSEMI		/
页数	文件大小	规格书
13页	320K
描述
Synchronous Buck Regulator

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数据手册

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FAN53701 数据手册

FAN53701, FAN53702,

FAN53703

300 mA / 600 mA / 1 A

Synchronous Buck Regulator

Description

www.onsemi.com

The FAN5370X is a Super Low Iq, step−down switching voltage

regulator, that delivers a fixed output from an input voltage supply of

2.3 V to 5.5 V. Using a proprietary architecture with synchronous

rectification, the FAN5370X is capable of delivering a peak efficiency

of 93%, while maintaining efficiency over 90% at load currents as low

as 1 mA.

WLCSP6

CASE 567UH

The regulator operates with 0402 and 0603 input and output

capacitors, respectively, which reduces the total solution size to

5.5 mm . At moderate and light load, Pulse Frequency Modulation

(PFM) is used to operate the device with a low quiescent current. Even

with such a low quiescent current, the part exhibits excellent transient

response during load swings. In Shutdown Mode, the supply current

drops to 100 nA, reducing power consumption. The Mode pin allows

the part to be in a Super Low IQ (SLIQ) mode with a typical quiescent

current of 2 mA.

MARKING DIAGRAM

12KK

XYZ

The FAN5370X is available in 6−bump, 0.4 mm pitch, Wafer−Level

Chip−Scale Package (WLCSP).

= Alphanumeric Device Marking

= Lot Run Code

= Alphabetical Year Code

= 2−weeks Date Code

= Assembly Plant Code

Features

• 2 mA Typical Quiescent Current

• 5.5 mm Total Solution Size

• 300 mA / 600 mA / 1 A Output Current Capability

• 0.6 V to 3.3 V Fixed Output Voltage

VIN

VOUT

• 2.3 V to 5.5 V Input Voltage Range

• Best−in−Class Load Transient Response

1.0μH

C_IN

2.2μF

C_OUT

22μF

• Best−in−Class Efficiency with Sub 1 mA Output Currents

• Internal Soft−Start Limits Battery Current Below 150 mA to Avoid

Brown−out Scenarios

FAN5370X

MODE

• Protection Faults (UVLO, OCP and OTP)

• Thermal Shutdown and Overload Protection

GND

• 6−Bump WLCSP, 0.4 mm Pitch

Figure 1. Typical Application

ORDERING INFORMATION

• These Devices are Pb−Free, Halogen Free/BFR Free and are RoHS

Compliant

Applications

See detailed ordering and shipping information on page 2 of

this data sheet.

• Wearables

• Smart Watch

• Health Monitoring

• Sensor Drive

• Energy Harvesting

• Utility and Safety Modules

• RF Modules

Publication Order Number:

January, 2017 − Rev. 1

FAN53701/D

12 3 4 5 6 7...13

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