Step-Down Converter. ETA3410 Datasheet

ETA3410 Converter. Datasheet pdf. Equivalent

Part ETA3410
Description Step-Down Converter
Feature ETA3410 3MHz 2A High ŋ Step-Down Converter in DFN2x2-8L Package DESCRIPTION The ETA3410 is a high-.
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Datasheet
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ETA3410 3MHz 2A High ŋ Step-Down Converter in DFN2x2-8L Pac ETA3410 Datasheet
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ETA3410
ETA3410
3MHz 2A High ŋ Step-Down Converter in DFN2x2-8L Package
DESCRIPTION
The ETA3410 is a high-efficiency, DC-to-DC step-down
switching regulator, capable of delivering up to 2A of
output current. The devices operate from an input voltage
range of 2.6V to 5.5V and provide output voltages from
0.6V to VIN, making the ETA3410 ideal for low voltage power
conversions. Running at a fixed frequency of 3MHz allows
the use of small inductance value and low DCR inductors,
thereby achieving higher efficiencies. Other external
components, such as ceramic input and output caps, can
also be small due to higher switching frequency, while
maintaining exceptional low noise output voltages. Built-in
EMI reduction circuitry makes this converter ideal power
supply for RF applications. Internal soft-start control
circuitry reduces inrush current. Short-circuit and
thermal-overload protection improves design reliability.
ETA3410 is housed in a tiny DFN2x2-8L package
FEATURES
ŋ up to 96%
Up to 2A Max Output Current
3MHz Frequency
Internal Compensation
Clock Dithering
Tiny DFN2x2-8L Package
APPLICATIONS
USB ports/Hubs
Hot Swaps
Cellphones
Tablet PC
Set Top Boxes
ORDERING INFORMATION
PART PACKAGE PIN
ETA3410D2I DFN2x2-8
TOP MARK
CEYW
Date Code
Product Number
TYPICAL APPLICATION
VIN 2.6V to 5.5V
7
AVIN
8
PVIN
10μF 5 EN
2
SW
6 MODE
4
FB
AGND PGND
13
VOUT
1μH 1.8V/2A
22pF
120k
60k
10μF
1.8V/2A 3MHz Step-Down Converter
100 Efficiency Vs IOUT
90
80
70
60
50
40
30
20 Mode=0
10 VOUT=3.3V
0
10
100
Vin=4V
Vin=4.2V
Vin=5V
1000
IOUT (mA)
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ETA3410
ETA3410
PIN CONFIGURATION
PGND 1
SW 2
AGND 3
FB 4
DFN2x2-8
8 PVIN
7 AVIN
6 MODE
5 EN
ABSOLUTEMAXIMUM RATINGS
(Note: Exceeding these limits may damage the device. Exposure to absolute maximum
rating conditions for long periods may affect device reliability.)
PVIN, AVIN, SW, FB, EN, MODE Voltage .....................0.3V to 6V
SW to ground current …………………………….…..Internally limited
Maximum Power Dissipation…………………………………….1300mW
Operating Temperature Range ………………......…–40°C to 85°C
Storage Temperature Range ……………………….–55°C to 150°C
ELECTRICAL CHACRACTERISTICS
(VIN = 3.6V, unless otherwise specified. Typical values are at TA = 25oC.)
PARAMETER
CONDITIONS
MIN TYP MAX UNITS
Input Voltage Range
2.6 5.5 V
Input UVLO
Rising, Hysteresis=200mV
2.1 V
Input Supply Current
VFB =0.65V,MODE=GND
30 μA
Input Shutdown Current
0.1 1 μA
FB Feedback Voltage
VIN =2.5 to 5.5V
0.588 0.6 0.612
V
FB Input Current
0.01 μA
Output Voltage Range
0.6 VIN V
Load Regulation
0.15 %/A
Line Regulation
VIN =2.7 to 5.5V
0.04 %/V
Switching Frequency
2.4 3 3.6 MHz
NMOS Switch On Resistance
ISW =200mA
100 150 m
PMOS Switch On Resistance
ISW =200mA
80 120 m
PMOS Switch Current Limit
2.5 3
A
SW Leakage Current
VOUT=5.5V,VSW=0 or 5.5V,EN= GND
10 μA
EN, MODE Input Current
EN=MODE=GND
1 μA
EN,MODE Input Low Voltage
0.4 V
EN,MODE Input High Voltage
1.5 V
Thermal Shutdown
Rising, Hysteresis =15°C
160 °C
PIN DESCRIPTION
PIN # NAME
1 PGND
2 SW
3 AGND
4 FB
5 EN
DESCRIPTION
Power Ground. Bypass with a 10μF ceramic capacitor to PVIN
Inductor Connection. Connect an inductor Between SW and the regulator output.
Analog Ground, Connect to PGND
Feedback Input. Connect an external resistor divider from the output to FB and GND to set the
output to a voltage between 0.6V and VIN
Enable pin for the IC. Drive this pin to high to enable the part, low to disable.
www.ETAsolution.com
Outperform with Efficiency
Proprietary Information DO NOT Distribute
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