EL7554 データシートの表示（PDF） - Intersil
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EL7554 Datasheet PDF : 14 Pages
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EL7554
Absolute Maximum Ratings (TA = 25°C)
VIN, VDD to SGND. . . . . . . . . . . . . . . . . . . . . . . . . . . -0.3V to +6.5V
VX to PGND. . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.3V to VIN +0.3V
SGND to PGND . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.3V to +0.3V
COMP, VREF, FB, VO, VTJ, TM,
SEL, PG, EN, STP, STN, COSC to SGND . . . . . -0.3V to VDD +0.3V
Storage Temperature . . . . . . . . . . . . . . . . . . . . . . . .-65°C to +150°C
Junction Temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +125°C
Ambient Operating Temperature . . . . . . . . . . . . . . . .-40°C to +85°C
CAUTION: Stresses above those listed in “Absolute Maximum Ratings” may cause permanent damage to the device. This is a stress only rating and operation of the
device at these or any other conditions above those indicated in the operational sections of this specification is not implied.
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 Electrical Specifications VDD = VIN = 3.3V, TA = TJ = 25°C, COSC = 390pF, Unless Otherwise Specified
PARAMETER
DESCRIPTION
CONDITIONS
MIN TYP
MAX UNIT
VIN
VREF
VREFTC
VREFLOAD
VRAMP
IOSC_CHG
IOSC_DIS
IVDD
IVDD_OFF
VDD_OFF
VDD_ON
TOT
THYS
ILEAK
ILMAX
RDSON1
RDSONTC2
RDSONTC
ISTP
ISTN
VPGP
VPGN
VPG_HI
VPG_LO
VOVP
VFB
VFB_LINE
GMEA
VFB_TC
FS
IFB
Input Voltage Range
Reference Accuracy
Reference Temperature Coefficient
Reference Load Regulation
Oscillator Ramp Amplitude
Oscillator Charge Current
Oscillator Discharge Current
VDD Supply Current
VDD Standby Current
VDD for Shutdown
VDD for Startup
Over-temperature Threshold
Over-temperature Hysteresis
Internal FET Leakage Current
Peak Current Limit
PFET On Resistance
NFET On Resistance
RDSON Tempco
STP Pin Input Pull-down Current
STN Pin Input Pull-up Current
Positive Power Good Threshold
Negative Power Good Threshold
Power Good Drive High
Power Good Drive Low
Output Over-voltage Protection
Output Initial Accuracy
Output Line Regulation
Error Amplifier Transconductance
Output Temperature Stability
Switching Frequency
Feedback Input Pull-up Current
0 < IREF < 50µA
0.1V < VOSC < 1.25V
0.1V < VOSC < 1.25V
VEN = 1 (L disconnected)
EN = 0
3
1.24
-1
2
2.4
2.6
EN = 0, LX = 6V (low FET), LX = 0V (high FET)
6
VSTP = VIN/2
VSTN = VIN/2
With respect to target output voltage
With respect to target output voltage
IPG = 1mA
IPG = -1mA
ILOAD = 0A
VIN = 3.3V, ΔVIN = 10%, ILOAD = 0A
VCC = 0.65V
0°C < TA < 85°C, ILOAD = 3A
VFB = 0V
-4
6
-14
2.6
0.79
85
300
1.26
50
1.15
200
8
2.7
1
135
20
35
30
0.2
2.5
2.5
10
0.8
0.2
125
±1
370
100
6
V
1.28
V
ppm/°C
%
V
µA
mA
5
mA
1.5
mA
2.65
V
2.95
V
°C
°C
10
µA
A
70
mΩ
60
mΩ
mΩ/°C
µA
4
µA
14
%
-6
%
V
0.5
V
%
0.81
V
0.5
%
165
µs
%
440
kHz
200
nA
3
FN7360.4
May 8, 2006
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