LX1910CDU MICROSEMI [Microsemi Corporation], LX1910CDU Datasheet - Page 3

• Manufacturer Part Number: LX1910CDU
• Description: Step-Down Regulator
• Manufacturer: MICROSEMI [Microsemi Corporation]

Copyright © 2004
Rev. 1.1, 2005-02-25
Specifications apply over junction temperature of: 0
Operating Range
Output Voltage Range
Feed Back Threshold
FB Input Current
EA Drive Current (COMP Pin)
EA Output Swing (COMP Pin)
Quiescent Operating Current
Sleep (Shutdown Mode) Current
Shutdown Input Bias Current
Shutdown Voltage Threshold
P-Channel Switch ON Resistance
Maximum Duty Cycle
SW Leakage Current
P-Channel Current Limit
Frequency
Closed Loop Load Regulation
Thermal Shutdown
TM
Parameter
11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: [phone]
Load Reg
IQVINSD
Symbol
IQVIN
V
I
R
SOURCE
E L E C T R I C A L C H A R A C T E R I S T I C S
I
V
V
I
I
EA OUT
SD_IB
V
DS(ON)
F
T
V
LEAK
I
I
SINK
I
D
LIM
OUT
FBT
FB
OP
SD
Q
SD
IN
o
C < T < 85
SD
Functional operation guaranteed by design
Closed loop operating range
4V < V
V
V
V
Pin 2 Supply Current
V
V
I
I
V
VOL, Sinking 10µA
VOH, Sourcing 10µA
SHDN = GND or SHDN = 5V
SW
SW
FB
FB
FB
O
SHDN
SHDN
Integrated Products Division
= 1.5V, 5mA < I
= 0.5A
= 0.5A (assured by design, not ATE tested)
o
-125mV of Overdrive, V
= 1.2V
+125mV of Overdrive, V
C for V
= 0V, SW Pin open
= 0V, SW grounded
IN
®
Microsemi
< 6V
IN
= 5V (except where otherwise noted). Typical values are at T
Test Conditions
O
< 700mA, ckt figure 3
COMP
COMP
= 2.5V
Device Off
Device On
= 2.5V
Step-Down Regulator
P
RODUCTION
0.8*V
1.146
10
10
-100
0.80
D
Min
900
125
3.5
V
80
FB
ATA
IN
S
HEET
1.170
Typ
4.86
0.53
1.07
0.35
300
250
100
950
150
16
16
95
2
1
A
=25°C.
0.95*VIN
0.2*V
1.193
Max
500
400
100
6.0
0.8
1.2
0.5
1
5
5
LX1910
IN
Units
% V
MHz
mV
mA
µA
µA
µA
µA
nA
µA
nA
µ A
°C
Ω
%
V
V
V
V
V
V
Page 3
O