LX1995-1CSE MICROSEMI, LX1995-1CSE Datasheet - Page 2

• Manufacturer Part Number: LX1995-1CSE
• Manufacturer: MICROSEMI

Specifications of LX1995-1CSE

• Operating Supply Voltage (typ): 1.8/2.5/3.3/5V
• Number Of Segments: 4
• Operating Temperature (min): -40C
• Operating Temperature (max): 85C
• Operating Temperature Classification: Industrial
• Package Type: SOT-23
• Pin Count: 5
• Mounting: Surface Mount
• Operating Supply Voltage (min): 1.6V
• Operating Supply Voltage (max): 5.5V
• Lead Free Status / Rohs Status: Compliant

Copyright © 2000
Rev. 1.1, 2005-07-07
Supply Input Voltage ........................................................................-0.3V to 7.0V
Feedback Peak Pulse Input Voltage (V
Shutdown Input Voltage (V
Switch Voltage (V
Switch Current (I
Operating Temperature Range .........................................................-40°C to 85°C
Maximum Operating Junction Temperature ................................................ 125°C
Storage Temperature Range...........................................................-65°C to 150°C
Peak Package Solder Reflow Temp. (40 second max. exposure) ... 260°C (+0, -5)
Note: Exceeding these ratings could cause damage to the device. All voltages are with respect to
Junction Temperature Calculation: T
The θ
above assume no ambient airflow.
SHDN
Name
GND
SG
SE
SW
FB
THERMAL RESISTANCE
THERMAL RESISTANCE
IN
JA
TM
Ground. Currents are positive into, negative out of specified terminal
numbers are guidelines for the thermal performance of the device/pc-board system. All of the
Plastic TSOT 5-Pin
Plastic SOT-23 5-Pin
Inductor Switching Connection – Internally connected to the drain of a 28V N-channel MOSFET. SW is high
impedance in shutdown.
Common terminal for ground reference.
Feedback Input – Connect to a current sense resistor between the load and GND to set the maximum output
current. FB pin is regulated to 320mV.
Active-Low Shutdown Input – A logic low shuts down the device and reduces the supply current to <1µA.
Connect SHDN to V
Unregulated IC Supply Voltage Input – Input range from +2.0V to +5.5V. Bypass with a 1µF or greater capacitor
for low voltage operation.
A B S O L U T E M A X I M U M R A T I N G S
SW
SW
) ...................................................................................500mA
11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: [phone]
) ........................................................................-0.3V to 30V
-
-
JUNCTION TO
JUNCTION TO
SHDN
T H E R M A L D A T A
J
= T
) ...........................................-0.3V to V
A
CC
+ (P
for normal operation.
F U N C T I O N A L P I N D E S C R I P T I O N
D
FB
x θ
A
A
) ..............................-0.3V to V
JA
MBIENT
MBIENT
).
Integrated Products Division
, θ
, θ
®
Microsemi
JA
JA
.
Description
207°C/W
191°C/W
IN
IN
+ 0.3V
+ 0.3V
P
Miniature LED Driver
RODUCTION
RoHS / Pb-free 100% Matte Tin Lead Finish
GND
GND
D
SW
SW
FB
P A C K A G E P I N O U T
FB
ATA
S
HEET
1
2
3
SG P
1
2
3
SE P
(Top View)
(Top View)
ACKAGE
ACKAGE
5
4
5
4
LX1995
SHDN
IN
IN
SHDN
Page 2