EL7530 View Datasheet(PDF) - Intersil
Part Name
Description
Manufacturer
EL7530 Datasheet PDF : 11 Pages
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EL7530
Absolute Maximum Ratings (TA = 25°C)
VIN, VDD, PG to SGND . . . . . . . . . . . . . . . . . . . . . . . -0.3V to +6.5V
LX to PGND . . . . . . . . . . . . . . . . . . . . . . . . . . -0.3V to (VIN + +0.3V)
SYNC, EN, VO, FB to SGND . . . . . . . . . . . . . -0.3V to (VIN + +0.3V)
PGND to SGND . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.3V to +0.3V
Peak Output Current . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 800mA
Thermal Information
Thermal Resistance (Typical)
θJA (°C/W)
MSOP Package (Note 1) . . . . . . . . . . . . . . . . . . . . .
115
Operating Ambient Temperature . . . . . . . . . . . . . . . .-40°C to +85°C
Storage Temperature . . . . . . . . . . . . . . . . . . . . . . . .-65°C to +150°C
Junction Temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +125°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
NOTE:
1. θJA is measured in free air with the component mounted on a high effective thermal conductivity test board with “direct attach” features. See
Tech Brief TB379.
Electrical Specifications VDD = VIN = VEN = 3.3V, C1 = C2 = 10µF, L = 1.8µH, VO = 1.8V (as shown in Typical Application Diagram),
unless otherwise specified.
PARAMETER
DESCRIPTION
CONDITIONS
MIN TYP MAX UNIT
DC CHARACTERISTICS
VFB
IFB
VIN, VDD
VIN,OFF
VIN,ON
IS
IDD
Feedback Input Voltage
Feedback Input Current
Input Voltage
Minimum Voltage for Shutdown
Maximum Voltage for Startup
Input Supply Quiescent Current
Active - PFM Mode
Active - PWM Mode
Supply Current
RDS(ON)-PMOS PMOS FET Resistance
RDS(ON)-NMOS NMOS FET Resistance
ILMAX
Current Limit
TOT,OFF
Over-temperature Threshold
TOT,ON
Over-temperature Hysteresis
IEN, ISYNC
EN, SYNC Current
VEN1, VSYNC1 EN, SYNC Rising Threshold
VEN2, VSYNC2 EN, SYNC Falling Threshold
VPG
Minimum VFB for PG, WRT Targeted
VFB Value
VOLPG
PG Voltage Drop
AC CHARACTERISTICS
PWM Mode
VIN falling
VIN rising
VSYNC = 0V
VSYNC = 3.3V
PWM, VIN = VDD = 5V
EN = 0, VIN = VDD = 5V
VDD = 5V, wafer test only
VDD = 5V, wafer test only
T rising
T falling
VEN, VRSI = 0V and 3.3V
VDD = 3.3V
VDD = 3.3V
VFB rising
VFB falling
ISINK = 3.3mA
790
800
810
mV
100
nA
2.5
5.5
V
2
2.2
V
2.2
2.4
V
120
145
µA
6.5
7.5
mA
400
500
µA
0.1
1
µA
70
100
mΩ
45
75
mΩ
1.2
A
145
°C
130
°C
-1
1
µA
2.4
V
0.8
V
95
%
86
%
35
70
mV
FPWM
tSYNC
tSS
PWM Switching Frequency
Minimum SYNC Pulse Width
Soft-start Time
Guaranteed by design
1.25
1.4
25
650
1.6
MHz
ns
µs
2
FN7434.6
July 12, 2006
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