G2822ATB1U
1MHz, 3A Synchronous Step-Down Regulator
The G2822A is a high efficiency monolithic syn-chronous buck regulator using a constant frequen-cy, current mode architecture. Supply current during operation is only 40μA and drops to <1μA in shut-down. The 2.7V to 6.5V input voltage range makes the G2822A ideally suited for single Li-Ion bat-tery-powered applications. 100% duty cycle pro-vides low dropout operation, extending battery run time in portable systems. Switching frequency is internally set at 1MHz, allowing the use of small surface mount inductors and capacitors. The inter-nal synchronous switch increase efficiency and eliminates the need for an external Schottky diode. Built-in soft start function eliminates in-rush current that could damage the system. Output latch-off operation protects the step-down regulator from damage under short circuit condition.
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規格表
|
Vin (V)
|
min.
|
2.7 |
|---|---|---|
|
max.
|
6.5 | |
|
IOUT
|
(A)
|
2 |
|
FSW
|
(k Hz)
|
-- |
|
FB
|
(V)
|
0.6 |
|
DMAX
|
(%)
|
100 |
|
IQ
|
(µA)
|
50 |
|
Note
|
EN, GND, LX, VIN, NC/PG, FB, SS=1ms,SCP Non latched, A/B/C/D/H SCP Latched,A/D/H/J discharge R 1.8kΩ,B/C discharge R 50Ω | |
|
Package
|
SOT-23-6 | |
|
Datasheet
|
EDS-2822A-1413-210225-0.91.pdf | |
