SM72485X/NOPB National Semiconductor, SM72485X/NOPB Datasheet - Page 4

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SM72485X/NOPB

Manufacturer Part Number
SM72485X/NOPB
Description
IC BUCK SWITCH 100V REG 8-LLP
Manufacturer
National Semiconductor
Series
SolarMagic™r
Type
Step-Down (Buck)r
Datasheet

Specifications of SM72485X/NOPB

Internal Switch(s)
Yes
Synchronous Rectifier
No
Number Of Outputs
1
Voltage - Output
Adj to 2.5V
Current - Output
150mA
Frequency - Switching
50kHz ~ 1.1MHz
Voltage - Input
6 V ~ 95 V
Operating Temperature
-40°C ~ 125°C
Mounting Type
*
Package / Case
*
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
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Minimum Off Time
Regulation and OV Comparators
Thermal Shutdown
Tsd
Thermal Resistance
θ
JA
Note 1: Absolute Maximum Ratings are limits beyond which damage to the device may occur. Operating Ratings are conditions under which operation of the
device is intended to be functional. For guaranteed specifications and test conditions, see the Electrical Characteristics.
Note 2: For detailed information on soldering plastic LLP packages, refer to the Packaging Data Book available from National Semiconductor Corporation.
Note 3: All limits are guaranteed. All electrical characteristics having room temperature limits are tested during production with T
limits are guaranteed by correlating the electrical characteristics to process and temperature variations and applying statistical process control.
Note 4: The V
Note 5: The human body model is a 100pF capacitor discharged through a 1.5kΩ resistor into each pin. The ESD rating for pin 2, pin 7, and pin 8 is 1 kV for HBM
and 150V for MM.
Note 6: For devices procured in the LLP-8 package the Rds(on) limits are guaranteed by design characterization data only.
Symbol
CC
Minimum Off Timer
FB Reference Threshold
FB Over-Voltage Threshold
FB Bias Current
Thermal Shutdown Temp.
Thermal Shutdown Hysteresis
Junction to Ambient
output is intended as a self bias for the internal gate drive power and control circuits. Device thermal limitations limit external loading.
Parameter
FB = 0V
Internal reference
Trip point for switch ON
Trip point for switch OFF
SDC Package
Conditions
4
2.445
Min
2.875
Typ
300
100
165
2.5
25
40
A
= T
2.550
Max
J
= 25°C. All hot and cold
Units
°C/W
nA
ns
°C
°C
V
V

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