參數(shù)資料
型號： EL7564C
英文描述： Monolithic 4 Amp DC:DC Step-Down Converter(4A,單片DC:DC步降轉(zhuǎn)換器)
中文描述： 單片4安培直流：DC降壓轉(zhuǎn)換器（4A條，單片直流：直流步降轉(zhuǎn)換器）
文件頁數(shù)： 10/17頁
文件大小： 342K
代理商： EL7564C
2
EL7564C
Monolithic 4 Amp DC:DC Buck Converter
E
L
7564C
Absolute Maximum Ratings (T
A = 25°C)
Supply Voltage between VIN or VS and GND
+6V
Input Voltage
GND -0.3V, VS +0.3V
VHI Voltage
GND -0.3V, VLX +6V
Storage Temperature
-65°C to 150°C
Operating Ambient Temperature
-40°C to 85°C
Operating Junction Temperature
135°C
Peak Output Current
6A
Continuous Output Current
4A
Important Note:
All parameters having Min/Max specifications are guaranteed. The Test Level column indicates the specific device testing actually performed during
production and Quality inspection. Elantec performs most electrical tests using modern high-speed automatic test equipment, specifically the LTX77
Series system. Unless otherwise noted, all tests are pulsed tests, therefor TJ = TC = TA.
Test Level
Test Procedure
A
100% production tested at the specified temperature(s)
B
QA sample tested per QA test plan QCX0002 at the specified temperature(s)
C
Parameter is a typical value at the specified temperature(s) for information purposes only
DC Characteristics
VS = VIN = 5V, TA = 25°C, COSC = 470pF, unless otherwise specified.
Parameter
Description
Conditions
Test
Level
Min
Typ
Max
Unit
VREF
Reference accuracy
A
1.252
1.265
1.278
V
VREFTC
Reference temperature coefficient
C
50
ppm/°C
VREFLOAD
Reference load regulation
0<ILOAD<50A
A
-0.5
0.5
%
VRAMP
Oscillator ramp amplitude
C1.15
V
IOSC_CHG
Oscillator charge current
0.1V<VOSC<1.25V
C
200
A
IOSC_DIS
Oscillator discharge current
0.1V<VOSC<1.25V
C8
mA
IVS
VS supply current
OUTEN = 4V, FOSC = 350kHz
A8
15
mA
IVS_OFF
VVS standby current
OUTEN = 0
A1
mA
IVIN
VIN no load current
OUTEN = 0
A
5
10
20
A
ILEAK
LX output leakage to GND
LX = 0V, OUTEN = 0
A
100
A
RDSON
Composite FET resistance
A30
60
m
RDSONTC
RDSON tempco
C0.2
m
/°C
VOUT
Output initial accuracy
VOUT = 1.8V, ILOAD = 0A
A
-1.5
+1.5
%
VOUTLINE
Output line regulation
VIN = 5V, ±10%, ILOAD = 0A
A
-0.5
0.5
%
VOUTLOAD
Output load regulation
0.5A< ILOAD <4A
C
-0.5
0.5
%
ILMAX
Current limit
C5
7
A
VOUTTC
Output temp stability
-40°C < TA<85°C, ILOAD = 2A
C±1.0
%
TOT
Over temperature threshold
C
135
°C
THYS
Over temperature hysteresis
C20
°C
VPWGDP
Positive power good threshold
With respect to target output voltage
A
+8.0
+12.0
%
VPWGDN
Negative power good threshold
With respect to target output voltage
A
-12.0
-8.0
%
VSOFF
VS for shutdown
A3.3
3.6
V
VSON
VS for startup
A3.8
4.1
V
VHYS
Supply input hysteresis
VHYS = VINON-VINOFF
C0.5
V
VIH
EN input high level
A4
V
IEN
EN input current
VEN = 4V
VIL
EN input low level
A1
V
VOH PWGD
Power good drive high
IOUT = 1mA
A4
V
VOL PWGD
Power good drive low
IOUT = -1mA
A0.5
V
PPSHR
Power share variation (IUNIT1-IUNIT2)TempUNIT1 = TempUNIT2
C
20
% of IL
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