EL7535 INTERSIL [Intersil Corporation], EL7535 Datasheet - Page 2

• Manufacturer Part Number: EL7535
• Description: Monolithic 350mA Step-Down Regulator
• Manufacturer: INTERSIL [Intersil Corporation]

Absolute Maximum Ratings
V
LX to PGND . . . . . . . . . . . . . . . . . . . . . . . . . . -0.3V to (V
RSI, EN, V
PGND to SGND . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.3V to +0.3V
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: T
Electrical Specifications
DC CHARACTERISTICS
V
I
V
V
V
I
R
R
I
T
T
I
V
V
V
V
AC CHARACTERISTICS
F
t
t
t
IN
FB
DD
LMAX
EN
RSI
SS
POR
PARAMETER
OT,OFF
OT,ON
PWM
FB
IN
IN,OFF
IN,ON
DS(ON)-PMOS
DS(ON)-NMOS
EN1
EN2
POR
OLPOR
, V
, I
, V
RSI
DD
, V
, V
DD
RSI1
RSI2
, POR to SGND . . . . . . . . . . . . . . . . . . . . . . -0.3V to +6.5V
O
, FB to SGND . . . . . . . . . . . . . . . -0.3V to (V
Feedback Input Voltage
Feedback Input Current
Input Voltage
Minimum Voltage for Shutdown
Maximum Voltage for Startup
Supply Current
PMOS FET Resistance
NMOS FET Resistance
Current Limit
Over-temperature Threshold
Over-temperature Hysteresis
EN, RSI Current
EN, RSI Rising Threshold
EN, RSI Falling Threshold
Minimum V
V
POR Voltage Drop
PWM Switching Frequency
Minimum RSI Pulse Width
Soft-start Time
Power On Reset Delay Time
FB
Value
FB
DESCRIPTION
for POR, WRT Targeted
2
V
DD
(T
A
= V
= 25°C)
IN
= V
EN
= 3.3V, C1 = C2 = 10µF, L = 1.8µH, V
J
= T
IN
IN
C
+ +0.3V)
+ +0.3V)
= T
V
V
PWM, V
EN = 0, V
V
V
T rising
T falling
V
V
V
V
V
I
Guaranteed by design
SINK
IN
IN
DD
DD
EN
DD
DD
FB
FB
A
falling
rising
, V
rising
falling
= 5V, wafer test only
= 5V, wafer test only
= 3.3V
= 3.3V
EL7535
= 5mA
RSI
IN
IN
= V
= 0V and 3.3V
= V
DD
CONDITIONS
DD
Peak Output Current . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 500mA
Operating Ambient Temperature . . . . . . . . . . . . . . . .-40°C to +85°C
Storage Temperature . . . . . . . . . . . . . . . . . . . . . . . .-65°C to +150°C
Junction Temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +145°C
= 5V
= 5V
O
= 1.8V, unless otherwise specified.
1.25
MIN
790
2.5
2.2
0.8
80
86
-1
2
TYP
800
400
145
130
650
100
0.1
1.5
1.4
70
45
35
25
MAX
1.55
810
250
500
100
120
2.2
2.4
2.4
75
95
70
50
6
1
1
August 16, 2005
FN7003.2
UNIT
MHz
mΩ
mΩ
mV
mV
ms
nA
µA
µA
°C
°C
µA
ns
µs
%
%
V
V
V
A
V
V