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EA3059
Datasheet
4-CH Power Management IC
Copyright © 2014 Everanalog Integrated Circuit Limited. All Rights Reserved.
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
VIN
LX
LX
3
GND3
1
3
4
7
9
10
FB3
AGND
FB2
4
EN4
25
2
2 5 6
11
12
1314
1516
19
20
21
22
23
24
3
VIN2
EN2
EN1
8
18
EN3
4
VCC
FB4
FB1
GND1
LX2
LX1
VIN1
GND2
17
GND 4
NC
NC
QFN 4x4-24
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