高效多路Buck-DCDC方案EA3036、EA3059-EA3059_1.2_2014_Jun.pdf

电子设计

需积分: 50 180 浏览量更新于2023-05-16 收藏 1003KB PDF 举报

EA3059

Datasheet

4-CH Power Management IC

Ver. 1.2

General Description

The EA3059 is a 4-CH power management IC for applications powered by one Li-Ion battery or a

DC 5V adapter. It integrates four synchronous buck regulators and can provide high efficiency

output at light load and heavy load operation. The internal compensation architecture simplifies the

application circuit design. Besides, the independent enable control makes the designer have the

greatest flexibility to optimize timing for power sequencing purposes. The EA3059 is available in a

24 pin QFN 4x4 package.

Features

 2.7V to 5.5V Input Voltage Range

 Four Buck Converters

Output Voltage Range: 0.6V to Vin

Maximum Continuous Load Current: 2A, Maximum Peak Load Current: 4A (4CH total

output power consumption must be less than 10W)

180° Phases Shifted Architecture

Fixed 1.5MHz Switching Frequency

100% Duty Cycle Low Dropout Operation

<1uA Shutdown Current

Independent Enable Control

Internal Compensation

Cycle-by-Cycle Current Limit

Short Circuit Protection

 Each Channel Efficiency Up to 95%

 Auto Recovery OTP Protection

 Available in 24-pin 4mm x 4mm QFN Package

Applications

 Smart Phone

 STB

 OTT

 MiFi

Pin Configurations

(TOP VIEW)

VIN

GND3

FB3

AGND

FB2

EN4

2 5 6

1314

1516

VIN2

EN2

EN1

EN3

VCC

FB4

FB1

GND1

LX2

LX1

VIN1

GND2

GND 4

QFN 4x4-24

EA3059

Datasheet

4-CH Power Management IC

Ver. 1.2

Pin Description

Pin Name

Function Description

Pin No.

GND3

Power ground pin of CH3.

FB3

Feedback input of CH3. Connect to output voltage with a resistor divider.

VCC

Input supply pin for internal control circuit.

AGND

Analog ground pin.

FB2

Feedback input of CH2. Connect to output voltage with a resistor divider.

GND2

Power ground pin of CH2.

LX2

Internal MOSFET switching output of CH2. Connect LX2 pin with a low

pass filter circuit to obtain a stable DC output voltage.

VIN2

Power input pin of CH2. Recommended to use a 10uF MLCC capacitor

between VIN2 pin and PGND2 pin.

EN2

CH2 turns on/turns off control input. Don’t leave this pin floating.

EN1

CH1 turns on/turns off control input. Don’t leave this pin floating.

VIN1

Power input pin of CH1. Recommended to use a 10uF MLCC capacitor

between VIN1 pin and PGND1 pin.

LX1

Internal MOSFET switching output of CH1. Connect LX1 pin with a low

pass filter circuit to obtain a stable DC output voltage.

GND1

Power ground pin of CH1.

FB1

Feedback input of CH1. Connect to output voltage with a resistor divider.

No connect.

15, 16

FB4

Feedback input of CH4. Connect to output voltage with a resistor divider.

GND4

Power ground pin of CH4.

LX4

Internal MOSFET switching output of CH4. Connect LX4 pin with a low

pass filter circuit to obtain a stable DC output voltage.

VIN4

Power input pin of CH4. Recommended to use a 10uF MLCC capacitor

between VIN4 pin and PGND4 pin.

EN4

CH4 turns on/turns off control input. Don’t leave this pin floating.

EN3

CH3 turns on/turns off control input. Don’t leave this pin floating.

VIN3

Power input pin of CH3. Recommended to use a 10uF MLCC capacitor

between VIN3 pin and PGND3 pin.

LX3

Internal MOSFET switching output of CH3. Connect LX3 pin with a low

pass filter circuit to obtain a stable DC output voltage.

Exposed

Pad

The Exposed Pad must be soldered to a large PCB copper plane and

connected to GND for appropriate dissipation.

剩余12页未读，继续阅读

weixin_38743506

粉丝: 349
资源: 2万+

高效多路Buck-DCDC方案EA3036、EA3059-EA3059_1.2_2014_Jun.pdf

高效多路Buck-DCDC方案EA3036、EA3059-EA3036_1.1_2015_Jan.pdf

高效多路Buck-DCDC方案EA3036、EA3059-EA3036C_1.4_2017_Apr.pdf

4.3V~25V连续可调多路输出线性稳压电源

buck-boost.rar_boost电路_buck_buck-boost_buck-boost电路_buck电路

biDCDC.zip_DCDC Matlab_双向_双向 boost_双向 buck-boost_双向buck-boost

boost-and-buck.zip_Boost_buck_buck-boost电路

buck---boost-chopper-circuit.rar_Buck-Boost的仿真_boost升压仿真_boost升压

buck -boost.rar_buck boost _buck-boost_buck/boost_simulink模型buck

Buck-Boost-Converter-controlled.zip_BOOST CONVERTER_buck-boost_c

buck-boost.zip_boost buck matlab_buck-boost电路_buck仿真_buck电路图_non

最新资源