參數(shù)資料
型號： EL7562CU
廠商： ELANTEC
元件分類： 穩(wěn)壓器
英文描述： Monolithic 2Amp DC-DC Step-Down Regulator
中文描述： 3 A SWITCHING REGULATOR, 1000 kHz SWITCHING FREQ-MAX, PDSO16
封裝： QSOP-16
文件頁數(shù)： 3/10頁
文件大?。?/td> 241K
代理商： EL7562CU
2
EL7562C - Preliminary
Monolithic 2 Amp DC:DC Step-down Regulator
E
L
75
62
C
-
P
re
lim
in
ar
y
Absolute Maximum Ratings (T
A = 25°C)
Supply Voltage between VIN or VDD and GND
+6.5V
VLX Voltage
VIN +0.3V
Input Voltage
GND -0.3V, VDD +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
Important Note:
All parameters having Min/Max specifications are guaranteed. Typ values are for information purposes only. Unless otherwise noted, all tests are at the
specified temperature and are pulsed tests, therefore: TJ = TC = TA.
DC Characteristics
VDD = VIN = 5V, TA = TJ = 25°C, COSC = 1.2nF, unless otherwise specified.
Parameter
Description
Conditions
Min
Typ
Max
Unit
VREF
Reference Accuracy
1.24
1.26
1.28
V
VREFTC
Reference Temperature Coefficient
50
ppm/°C
VREFLOAD
Reference Load Regulation
0 < IREF < 50A
-1
%
VRAMP
Oscillator Ramp Amplitude
1.15
V
IOSC_CHG
Oscillator Charge Current
0.1V < VOSC < 1.25V
200
A
IOSC_DIS
Oscillator Discharge Current
0.1V < VOSC < 1.25V
8
mA
IVDD+VDRV
VDD+VDRV Supply Current
VEN = 4V, FOSC = 120kHz
2
3.5
5
mA
IVDD_OFF
VDD Standby Current
EN = 0
1
1.5
mA
VDD_OFF
VDD for Shutdown
3.5
3.9
V
VDD_ON
VDD for Startup
3.95
4.35
V
TOT
Over Temperature Threshold
135
°C
THYS
Over Temperature Hysteresis
20
°C
ILEAK
Internal FET Leakage Current
EN = 0, LX = 5V (low FET), LX = 0V (high FET)
10
A
ILMAX
Peak Current Limit
3
A
RDSON
FET On Resistance
Wafer level test only
60
120
m
RDSONTC
RDSON Tempco
0.2
m
/°C
VFB
Output Initial Accuracy
ILOAD = 0A
0.960
0.975
0.99
V
VFB_LINE
Output Line Regulation
VIN = 5V, VIN = 10%, ILOAD = 0A
0.5
%
VFB_LOAD
Output Load Regulation
0.1A < ILOAD < 1A
0.5
%
VFB_TC
Output Temperature Stability
-40°C < TA < 85°C, ILOAD = 0.5A
±1
%
IFB
Feedback Input Pull Up Current
VFB = 0V
100
200
nA
VEN_HI
EN Input High Level
3.2
4
V
VEN_LO
EN Input Low Level
1
V
IEN
Enable Pull Up Current
VEN = 0
-4
-2.5
A
Closed Loop AC Electrical Characteristics
VS = VIN = 5V, TA = TJ = 25°C, COSC = 1.2nF, unless otherwise specified.
Parameter
Description
Conditions
Min
Typ
Max
Unit
FOSC
Oscillator Initial Accuracy
105
117
130
kHz
tSYNC
Minimum Oscillator Sync Width
25
ns
MSS
Soft Start Slope
0.5
V/ms
tBRM
FET Break Before Make Delay
15
ns
tLEB
High Side FET Minimum On Time
150
ns
DMAX
Maximum Duty Cycle
95
%
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