參數(shù)資料
型號(hào)： EL7464CRE-T13
英文描述： Monolithic 4 Amp DC:DC Step-down Regulator
中文描述： 單片4安培直流：DC降壓穩(wěn)壓器
文件頁(yè)數(shù)： 13/18頁(yè)
文件大?。?/td> 1196K
代理商： EL7464CRE-T13
4
EL7564C
Monolithic 4 Amp DC:DC Step-down Regulator
E
L
75
64
C
Pin Descriptions
Pin Number
Pin Name
Pin Function
1
VREF
Bandgap reference bypass capacitor; typically 0.1F to SGND
2
SGND
Control circuit negative supply or signal ground
3
COSC
Oscillator timing capacitor (see performance curves)
4
VDD
Control circuit positive supply; normally connected to VIN through an RC filter
5
VTJ
Junction temperature monitor; connected with 2.2nF to 3.3nF to SGND
6
PGND
Ground return of the regulator; connected to the source of the low-side synchronous NMOS power FET
7
PGND
Ground return of the regulator; connected to the source of the low-side synchronous NMOS power FET
8
VIN
Power supply input of the regulator; connected to the drain of the high-side NMOS power FET
9
STP
Auxilliary supply tracking positive input; tied to regulator output to synchronize start up with a second supply; leave open
for stand alone operation; 2A internal pull down current
10
STN
Auxilliary supply tracking negative input; connect to output of a second supply to synchronize start up; leave open for
stand alone operation; 2A internal pull up current
11
PGND
Ground return of the regulator; connected to the source of the low-side synchronous NMOS power FET
12
PGND
Ground return of the regulator; connected to the source of the low-side synchronous NMOS power FET
13
PGND
Ground return of the regulator; connected to the source of the low-side synchronous NMOS power FET
14
LX
Inductor drive pin; high current output whose average voltage equals the regulator output voltage
15
LX
Inductor drive pin; high current output whose average voltage equals the regulator output voltage
16
VHI
Positive supply of high-side driver; boot strapped from VDRV to LX with an external 0.22F capacitor
17
VDRV
Positive supply of low-side driver and input voltage for high side boot strap
18
PG
Power good window comparator output; logic 1 when regulator output is within ±10% of target output voltage
19
FB
Voltage feedback input; connected to external resistor divider between VOUT and SGND; a 125nA pull-up current forces
VOUT to SGND in the event that FB is floating
20
EN
Chip enable, active high; a 2A internal pull up current enables the device if the pin is left open; a capacitor can be added
at this pin to delay the start of converter
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