Adaptive COT Step-Down Converter - ETA
Description
ETA3452
6V/3A, Fast Response, Adaptive COT Step-Down Converter in SOT23-6
DESCRIPTION
ETA3452 belongs to a new breed of high frequency synchronous Step-Down converters that combines the advantages of voltage mode control and Constant-On-Time control.
Its adaptive Constant-On-Time control dynamically changes switch on time to achieve a constant switching frequency.
It does not have the minimum on-time constrain normally a fixed-frequency current mode Step-down requires, allowing it to go down to very low duty ratio without affecting loop stability.
The voltage mode nature of ETA3452 also provides more superior load transient response and a seamless transition from PFM to PWM modes.
ETA3452 is capable of supplying output with current up to 3A at 1.
2V output.
All these features make ETA3452 an excellent choice for ARM based CPU power supply.
ETA3452 is in a SOT23-6 package.
FEATURES
Adaptive COT control Up to 95% Efficiency Up to 91% Efficiency for low output voltage Up to 3A Max Output current Feedback voltage 0.
45V Excellent load transient response SOT23-6 Package
APPLICATIONS
ARM based CPUs Tablet, MID Smart Phone Smart Set-Top Box, OTT
ORDERING INFORMATION
PART
ETA3452S2G
PACKAGE PIN
SOT23-6
TOP MARK
FLYW FL: Product Code YW: Date Code
TYPICAL APPLICATION
VIN 2.
6V to 5.
5V 22uF
VIN SW
EN ETA3452 VOS
FB
GND
1uH
VOUT 1.
2V
400K 100pF 240K
22uF
Typical Application Circuit of 1.
2V Output
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Powering Minds of the Smart
ETA3452
PIN CONFIGURATION
ABSOLUTEMAXIMUM RATINGS
(Note: Exceeding these limits may damage the device.
Exposure to absolute maximum rating conditions for long periods may affect device reliability.
)
VIN Voltage .
–0.
3V to 6.
0V
All Other Pin Voltage .
VIN–0.
3V to VIN+0.
3
SW to ground current…………………….
.
………….
.
.
Internally limited
Operating Temperature Range ………………….
.
.
.
…–40°C to 85°C
Storage Tempera...
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