lt3050 Linear Technology Corporation, lt3050 Datasheet - Page 11

• Manufacturer Part Number: lt3050
• Description: 100ma, Low Noise Linear Regulator With Precision Current Limit And Diagnostic Functions
• Manufacturer: Linear Technology Corporation

PIN FUNCTIONS
For detailed information on how to set the I
value, please see the Operation section.
The I
ground. If not used, tie I
I
collector of a PNP current mirror that outputs 1/100
BLOCK DIAGRAM
MON
MAX
(Pin 12): Output Current Monitor. This pin is the
9
4
ADJ
SHDN
pin requires a 10nF decoupling capacitor to
IDEAL DIODE
30k
R4
D3
MAX
Q2
to GND.
D2
+
–
600mV
REFERENCE
AMPLIFIER
ERROR
–
+
MIN
pin resistor
CURRENT LIMITS
1
REF/BYP
THERMAL/
th
of the power PNP current. When OUT = I
current exactly equals 1/100
For detailed information on how to calculate the output
current from the I
The I
decoupling capacitor. If the I
be tied to GND.
Q3
GND
10, 13
COMPARATOR
AMPLIFIER
CURRENT
MON
LIMIT
I
MIN
+
–
+
–
pin requires a small (22nF minimum) external
R1
D1
IN
5, 6
100k
100k
R3
R2
MON
QI
1/200
MIN
pin, please see the Operation section.
QI
1/100
MON
th
MON
that of the output current.
U1
pin is not used, it must
QI
1/200
MAX
QFAULT
QPOWER
1
LT3050
FAULT
MON
I
I
OUT
MON
I
MAX
7, 8
MIN
3050 BD01
11
12
, the pin
2
3
11
3050f