LT1521CS8#PBF Linear Technology, LT1521CS8#PBF Datasheet - Page 13

• Manufacturer Part Number: LT1521CS8#PBF
• Description: IC LDO REG W/SHTDWN ADJ 8-SOIC
• Manufacturer: Linear Technology

Specifications of LT1521CS8#PBF

• 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-SOIC (3.9mm Width)
• Voltage Regulator Type: Linear
• Topology: LDO
• Regulator Output Type: Adjustable
• Polarity Type: Positive
• Number Of Outputs: Single
• Input Voltage (min): -20V
• Input Voltage (max): 20V
• Output Voltage: 3.8 to 20V
• Package Type: SOIC N
• Output Current: 300mA
• Load Regulation: -30mV
• Line Regulation: 20mV
• Operating Temp Range: 0C to 125C
• Operating Temperature Classification: Commercial
• Dropout Voltage@current (max): 0.17@1mA/0.6@300mA
• Dropout Voltage@current (typ): 0.13@1mA/0.5@300mA
• Pin Count: 8
• Mounting: Surface Mount
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

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
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