LM2576 Series
Block Diagram
VIN
ON/OFF
INTERNAL
REGULATOR
UNREGULATED
DC INPUT
1
4
ON/OFF
5
+
CIN
FIXED GAIN
ERRORAMP
FEED-
BACK
R2
3 AMP
DRIVER
SWITCH
COMPARATOR
+
-
+
-
R1
1.0k
OUTPUT
L1
VOUT
2
3
+
L
O
A
D1
COUT
1.23V
BAND-GAP
REFERENCE
52kHZ
OSCILLATOR
D
THERMAL
SHUTDOWN
CURRENT
LIMIT
RESET
GND
3.3V, R2 =1.7K
5V, R2 = 3.1K
12V, R2 = 8.84K
15V, R2 =11.3K
For ADJ, Version
R1 = Open, R2 =0Ω
Ordering information
Temperature
Output Voltage, V
12
Package Type
Range
3.3
5.0
15
ADJ
MIK2576HVS-3.3 MIK2576HVS-5.0 MIK2576HVS-12 MIK2576HVS-15 MIK2576HVS-ADJ
MIK2576S-3.3 MIK2576S-5.0 MIK2576S-12 MIK2576S-15 MIK2576S-ADJ
-40°C ≤ TA
≤ 125°C
TO-263
TO-220
MIK2576HVT-3.3 MIK2576HVT-5.0 MIK2576HVT-12 MIK2576HVT-15 MIK2576HVT-
ADJ
BEIJING ESTEK ELECTRONICS CO.,LTD
2
ESTEK [ Estek Electronics Co. Ltd ]
