LM2575-12BN Micrel Inc, LM2575-12BN Datasheet - Page 5

• Manufacturer Part Number: LM2575-12BN
• Description: IC REG BUCK 1A 12V 16-DIP
• Manufacturer: Micrel Inc
• Type: Step-Down (Buck)r

Specifications of LM2575-12BN

• Internal Switch(s): Yes
• Synchronous Rectifier: No
• Number Of Outputs: 1
• Voltage - Output: 12V
• Current - Output: 1A
• Frequency - Switching: 42kHz ~ 63kHz
• Voltage - Input: 4 ~ 40 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Through Hole
• Package / Case: 16-DIP (0.300", 7.62mm)
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Power - Output: -

Notes:
1. Absolute Maximum Rating indicate limits beyond which damage to the device may occur. Operating Ratings indicate conditions for which the device
2. All limits guaranteed at room temperature (standard type face) and at temperature extremes (bold type face). All room temperature limits are100%
3. External components such as the catch diode, inductor, input and output capacitors can affect switching regulator system performance. When the
4. Output (pin 2) sourcing current. No diode, inductor or capacitor connected to output.
5. Feedback (pin 4) removed from output and connected to 0V.
6. Feedback (pin 4) removed from output and connected to 12V to force the output transistor OFF.
7. Junction to ambient thermal resistance (no external heat sink) for the 5-pin TO-220 package mounted vertically, with 1/2" leads in a socket, or on PC
8. Junction to ambient thermal resistance (no external heat sink) for the 5-pin TO-220 package mounted vertically, with 1/4" leads soldered to PC
9. Junction to ambient thermal resistance with approximately 1 square inch of pc board copper surrounding the leads. Additional copper will lower
Micrel, Inc.
Symbol
DEVICE PARAMETERS, ADJUSTABLE REGULATOR
I
DEVICE PARAMETERS, FIXED and ADJUSTABLE REGULATORS
f
V
DC
I
I
I
I
θ
θ
θ
θ
θ
ON/OFF CONTROL, FIXED and ADJUSTABLE REGULATORS Test Circuit Figure 1
V
V
I
I
May 2009
B
O
CL
L
Q
STBY
IH
IL
JA
JA
JC
JA
JA
SAT
IH
IL
is intended to be functional, but do not guarantee specific performance limits. For guaranteed specifications and test conditions, see the Electrical
Characteristics.
production tested. All limits at temperature extreme are guaranteed via testing.
LM2575/LM1575 is used as shown in Figure 1 test circuit, system performance will be shown in system parameters section of Electrical
Characteristics.
board with minimum copper area.
board containing approximately 4 square inches of copper area surrounding the leads.
thermal resistance further.
Parameter
Feedback Bias Current
Oscillator Frequency
Saturation Voltage
Max Duty Cycle (ON)
Current Limit
Output Leakage Current
Quiescent Current
Standby Quiescent Current
Thermal Resistance
ON/OFF Pin Logic
Input Level
ON/OFF Pin Logic
Current
Condition
V
I
( Note 5 )
Peak Current, t
V
( Note 6 )
( Note 6 )
ON/OFF Pin = 5V (OFF)
T Package, Junction to Ambient ( Note 7 )
T Package, Junction to Ambient ( Note 8 )
T Package, Junction to Case
N Package, Junction to Ambient ( Note 9 )
WM Package, Junction to Ambient ( Note 9 )
V
V
ON /OFF Pin = 5V (OFF)
ON /OFF Pin = 0V (ON)
OUT
OUT
IN
OUT
OUT
= 40V, ( Note 6 ),
= 1A ( Note 4 )
= 5V
= 0V
= 5V
ON
≤ 3µs ( Note 4 )
5
Output = –1V
Output = –1V
Output = 0V
0.01
Typ
100
0.9
2.2
1.4
1.2
50
52
98
75
50
65
45
85
5
2
4
LM2575
(Note 2)
100/ 500
1.2/ 1.4
1.7/ 1.3
3.0/ 3.2
2.2/ 2.4
1.0/ 0.8
47/ 42
58/ 63
Limit
200
93
30
10
30
10
2
M9999-051209-B
kHz(max)
mA(max)
mA(max)
mA(max)
LM2575
kHz(min)
µA(max)
µA(max)
µA(max)
(Limits)
%(max)
V(max)
A(max)
V(max)
A(min)
V(min)
Units
°C/W
kHz
mA
mA
nA
µA
µA
µA
%
V
A