LM2574M-ADJ/NOPB National Semiconductor, LM2574M-ADJ/NOPB Datasheet - Page 5

• Manufacturer Part Number: LM2574M-ADJ/NOPB
• Description: IC REG SW ADJ 500MA STPDN 14SOIC
• Manufacturer: National Semiconductor
• Series: SIMPLE SWITCHER®r
• Type: Step-Down (Buck)r

Specifications of LM2574M-ADJ/NOPB

• Internal Switch(s): Yes
• Synchronous Rectifier: No
• Number Of Outputs: 1
• Voltage - Output: 1.23 ~ 37 V
• Current - Output: 500mA
• Frequency - Switching: 52kHz
• Voltage - Input: 4 ~ 40 V
• Operating Temperature: -40°C ~ 125°C
• Mounting Type: Surface Mount
• Package / Case: 14-SOIC (7.5mm Width)
• Power - Output: 750mW
• Primary Input Voltage: 40V
• No. Of Outputs: 1
• Output Voltage: 37V
• Output Current: 500mA
• No. Of Pins: 14
• Operating Temperature Range: -40°C To +125°C
• Current Rating: 0.5A
• Filter Terminals: SMD
• Rohs Compliant: Yes
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: *LM2574M-ADJ; *LM2574M-ADJ/NOPB; LM2574M-ADJ

V
Symbol
LM1117 Electrical Characteristics
Typicals and limits appearing in normal type apply for T
tion temperature range for operation, 0˚C to 125˚C.
IN
∆V
I
LIMIT
-V
OUT
OUT
Load Regulation
(Note 6)
Dropout Voltage
(Note 7)
Current Limit
Minimum Load
Current (Note 8)
Quiescent Current
Thermal Regulation
Ripple Regulation
Adjust Pin Current
Adjust Pin Current
Change
Temperature Stability
Long Term Stability
RMS Output Noise
Thermal Resistance
Junction-to-Case
Thermal Resistance
Junction-to-Ambient
(No air flow)
Parameter
LM1117-ADJ
V
LM1117-1.8
V
LM1117-2.5
V
LM1117-2.85
V
LM1117-3.3
V
LM1117-5.0
V
I
I
I
V
LM1117-ADJ
V
LM1117-1.8
V
LM1117-2.5
V
LM1117-2.85
V
LM1117-3.3
V
LM1117-5.0
V
T
f
= 1V
10 ≤ I
1.4V ≤ V
T
(% of V
3-Lead SOT-223
3-Lead TO-220
3-Lead TO-252
3-Lead SOT-223 (No heat sink)
3-Lead TO-220 (No heat sink)
3-Lead TO-252 (Note 9) (No heat sink)
3-Lead TO-263
8-Lead LLP(Note 10)
OUT
OUT
OUT
RIPPLE
A
A
IN
IN
IN
IN
IN
IN
IN
IN
IN
IN
IN
IN
IN
-V
-V
= 25˚C, 30ms Pulse
= 125˚C, 1000Hrs
= 3.2V, 0 ≤ I
= 3.9V, 0 ≤ I
= 4.25V, 0 ≤ I
= 4.75V, 0 ≤ I
= 6.5V, 0 ≤ I
= 15V
≤ 15V
≤ 15V
≤ 10V
≤ 15V
≤ 15V
PP
= 100mA
= 500mA
= 800mA
OUT
OUT
OUT
=1 20Hz, V
OUT
IN
≤ 800mA,
= 3V, 10 ≤ I
= 5V, T
-V
), 10Hz ≤ f ≤10kHz
OUT
Conditions
OUT
OUT
OUT
≤ 10V
J
OUT
OUT
= 25˚C
IN
-V
J
≤ 800mA
≤ 800mA
≤ 800mA
OUT
≤ 800mA
≤ 800mA
= 25˚C. Limits appearing in Boldface type apply over the entire junc-
(Continued)
OUT
≤ 800mA
= 3V V
5
RIPPLE
(Note 5)
Min
800
60
(Note 4)
0.003
1200
1.10
1.15
1.20
0.01
15.0
Typ
136
0.2
1.7
0.2
0.5
0.3
3.0
75
60
10
79
92
55
40
1
1
1
1
1
5
5
5
5
5
(Note 5)
1500
Max
1.20
1.25
1.30
120
0.4
0.1
10
10
10
10
15
10
10
10
10
10
5
5
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Units
˚C/W
˚C/W
˚C/W
˚C/W
˚C/W
˚C/W
˚C/W
˚C/W
%/W
mV
mV
mV
mV
mV
mA
mA
mA
mA
mA
mA
mA
dB
µA
µA
%
%
%
%
V
V
V