LT1521CMS8 Linear Technology, LT1521CMS8 Datasheet - Page 13

IC LDO REG W/SHTDWN ADJ 8-MSOP

LT1521CMS8

Manufacturer Part Number
LT1521CMS8
Description
IC LDO REG W/SHTDWN ADJ 8-MSOP
Manufacturer
Linear Technology
Datasheet

Specifications of LT1521CMS8

Regulator Topology
Positive Adjustable
Voltage - Output
3.8 ~ 20 V
Voltage - Input
4.3 ~ 20 V
Voltage - Dropout (typical)
0.5V @ 300mA
Number Of Regulators
1
Current - Output
300mA
Current - Limit (min)
320mA
Operating Temperature
0°C ~ 125°C
Mounting Type
Surface Mount
Package / Case
8-MSOP, Micro8™, 8-uMAX, 8-uSOP,
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant

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PACKAGE
APPLICATIONS
Table 4. Fault Conditions
– 20V < V
< V
< V
INPUT PIN
OUT
OUT
> 1.5V
Open
Open
(Nominal)
(Nominal)
0.8V
0.8V
IN
< 20V
DESCRIPTION
U
(.0165 .0015)
0.42 0.04
GAUGE PLANE
(.077)
NOTE:
1. DIMENSIONS IN MILLIMETER/(INCH)
2. DRAWING NOT TO SCALE
3. DIMENSION DOES NOT INCLUDE MOLD FLASH, PROTRUSIONS OR GATE BURRS.
4. DIMENSION DOES NOT INCLUDE INTERLEAD FLASH OR PROTRUSIONS.
5. LEAD COPLANARITY (BOTTOM OF LEADS AFTER FORMING) SHALL BE 0.102mm (.004") MAX
0.18
TYP
INFORMATION
MOLD FLASH, PROTRUSIONS OR GATE BURRS SHALL NOT EXCEED 0.152mm (.006") PER SIDE
INTERLEAD FLASH OR PROTRUSIONS SHALL NOT EXCEED 0.152mm (.006") PER SIDE
U
RECOMMENDED SOLDER PAD LAYOUT
(.206)
5.23
MIN
Open (High)
Open (High)
Open (High)
Open (High)
SHDN PIN
Grounded
Grounded
Grounded
Grounded
(.010)
0.254
W
U
DETAIL “A”
DETAIL “A”
(Reference LTC DWG # 05-08-1660)
0 – 6 TYP
0.889 0.127
(.0256)
(.035 .005)
U
(.126 – .136)
0.65
BSC
3.2 – 3.45
Forced to V
Forced to V
8-Lead Plastic MSOP
OUTPUT/SENSE PINS
(.021 .006)
0.53 0.015
MS8 Package
SEATING
> 1V
> 1V
PLANE
OUT
OUT
0V
0V
0V
0V
(Nominal)
(Nominal)
(.192 .004)
(.118 .004)
3.00 0.102
(.009 – .015)
4.88 0.1
0.22 – 0.38
(NOTE 3)
(.043)
MAX
1.10
(.0256)
0.65
BCS
1
8
RESULTING CONDITIONS
Reverse Output Current 5 A (See Figure 3)
Input Current 1 A (See Figure 4)
Reverse Output Current 5 A (See Figure 3)
Input Current 1 A (See Figure 4)
Reverse Output Current 5 A (See Figure 3)
Reverse Output Current 5 A (See Figure 3)
Output Current = 0
Output Current = 0
Output Current = Short-Circuit Current
Output Current = 0
2 3
7 6 5
4
LT1521-3.3/LT1521-5
(.118 .004)
3.00 0.102
(.206)
(.034)
0.52
REF
NOTE 4
0.86
REF
(.005 .002)
0.13 0.05
LT1521/LT1521-3
MSOP (MS8) 1001
13
1521335fb

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