LT3150CGN#PBF Linear Technology, LT3150CGN#PBF Datasheet - Page 17

• Manufacturer Part Number: LT3150CGN#PBF
• Description: IC CTRLR REG VLDO FET 16-SSOP
• Manufacturer: Linear Technology
• Type: Positive Adjustabler

Specifications of LT3150CGN#PBF

• Number Of Outputs: 1
• Voltage - Output: 2.5 ~ 18.4 V
• Current - Supply: 12mA
• Voltage - Input: 1.5 ~ 10 V, 10 ~ 20 V
• Operating Temperature: 0°C ~ 70°C
• Package / Case: 16-SSOP
• Primary Input Voltage: 10V
• Dropout Voltage Vdo: 130mV
• No. Of Pins: 16
• Output Current: 10A
• Operating Temperature Range: 0°C To +70°C
• Msl: MSL 1 - Unlimited
• Output Voltage Adjustable Min, Vout: 1.5V
• Rohs Compliant: Yes
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

TYPICAL APPLICATIO S
Setting the Linear Regulator Output Voltage
0V TO 5V
RESET
0V TO 5V
*I
R
R
ACTIVATING CURRENT LIMIT ALSO ACTIVATES
THE SHDN2 PIN TIMER
LIM
RESET
SENSE
SENSE
Shutdown Time-Out with Reset
*C1 = 15 A(t)/1.11V
Shutdown Time-Out with Reset
t = SHUTDOWN LATCHOFF TIME
= 50mV/R
*C2 = 15 A(t)/1.11V
t = SHUTDOWN LATCH-OFF TIME
100k
= DISCRETE SHUNT RESISTOR OR
= KELVIN-SENSED PC BOARD TRACE
GATE
R2
Setting Current Limit
I
I
POS
NEG
FB2
V
OUT
R1
100k
SENSE
= 1.21V(1 + R2/R1)
R3
100k
V
V
OUT
OUT
Q1
VN2222L
Q2
R2
R1
R
SENSE
Q2
2N3904
3150 TA03
V
IN1
U
*
3150 TA07
3150 TA05
SHDN2
C1*
3150 TA09
SHDN2
C2*
Current Limit with Foldback Limiting Example
SET R5 << R6
I
OUT
V
IN1
=
C
GATE
T
R4*
SHDN2
I
50mV
I
Using No R
POS
NEG
R4
RT1
10k
NTC
Basic Thermal Shutdown
SHDN2
Overvoltage Protection
R5 + R6
V
V
GATE
I
I
OUT(uth)
OUT(lth)
POS
NEG
R6
R6
D1
1N4148
D2
1N4148
SENSE
R5
RT1 = DALE NTHS-1206N02
THERMALLY MOUNT RT1
IN CLOSE PROXIMITY
TO THE EXTERNAL
N-CHANNEL MOSFET
*CHOOSE R4 BASED ON
–
= 1.11(R6/R5) – 15 A(R6)
V
SHUTDOWN TEMPERATURE
= 1.21(R6/R5) + 5 A(R6)
V
IN1
(V
OUT
IN1
AND REQUIRED THERMAL
R6
R5
C1
10 F
Current Limit
3150 TA10
MBR0520L
– V
3150 TA06
R4
Q3
OUT
R4
D1
I
SHDN2
OUT
V
V
– 2V
IN1
OUT
V
OUT
F
)
3150 TA08
Q1
R5 + R6
R5
V
3150 TA04
IN1
LT3150
17
3150f