LM3670MF-1.2EV National Semiconductor, LM3670MF-1.2EV Datasheet - Page 4

• Manufacturer Part Number: LM3670MF-1.2EV
• Description: BOARD EVALUATION LM3670MF-1.2
• Manufacturer: National Semiconductor
• Series: PowerWise®r

Specifications of LM3670MF-1.2EV

• Main Purpose: DC/DC, Step Down
• Outputs And Type: 1, Non-Isolated
• Voltage - Output: 1.2V
• Current - Output: 350mA
• Voltage - Input: 2.5 ~ 5.5V
• Regulator Topology: Buck
• Frequency - Switching: 1MHz
• Board Type: Fully Populated
• Utilized Ic / Part: LM3670
• Lead Free Status / RoHS Status: Not applicable / Not applicable
• Power - Output: -
• Lead Free Status / Rohs Status: Not Compliant

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V
V
Line_reg
Load_reg
V
I
Q_SHDN
IN
OUT
REF
Absolute Maximum Ratings
If Military/Aerospace specified devices are required,
please contact the National Semiconductor Sales Office/
Distributors for availability and specifications.
Electrical Characteristics
the full operating junction temperature range (−40˚C ≤ T
150mA, EN = V
Symbol
V
EN Pin: Voltage to GND
FB, SW Pin:
Junction Temperature (T
Storage Temperature Range
Maximum Lead Temperature
IN
(Soldering, 10 sec.)
Pin: Voltage to GND
Input Voltage Range
Fixed Output Voltage: 1.2V
Fixed Output Voltage: 1.5V
Fixed Output Voltage: 1.6V,
1.875V
Fixed Output Voltage: 1.8V
Fixed Output Voltage: 2.5V,
3.3V
Adjustable Output Voltage
(Note 4)
Line Regulation
Load Regulation
Internal Reference Voltage
Shutdown Supply Current
IN
Parameter
J-MAX
)
−45˚C to +125˚C
−45˚C to +150˚C
(GND−0.2V) to
Limits in standard typeface are for T
−0.2V to 6.0V
−0.2V to 6.0V
(Note 5)
2.5V ≤ V
I
2.5V ≤ V
0 mA ≤ I
2.5V ≤ V
I
2.5V ≤ V
0 mA ≤ I
2.5V ≤ V
I
2.5V ≤ V
0 mA ≤ I
2.5V ≤ V
I
2.5V ≤ V
0 mA ≤ I
3.6V ≤ V
I
3.6V ≤ V
0 mA ≤ I
2.5V ≤ V
I
2.5V ≤ V
0 mA ≤ I
2.5V ≤ V
I
150 mA ≤ I
T
O
O
O
O
O
O
O
(V
A
(Note 1)
=85
= 10 mA
= 10 mA
= 10 mA
= 10 mA
= 10 mA
= 10 mA
= 10 mA
IN
+ 0.2V)
o
C
260˚C
O
O
O
O
O
O
IN
IN
IN
IN
IN
IN
IN
IN
IN
IN
IN
IN
IN
J
≤ 150 mA
≤ 350 mA
≤ 350 mA
≤ 350 mA
≤ 350 mA
≤ 150 mA
≤ 5.5V
≤ 5.5V
≤ 5.5V
≤ 5.5V
≤ 5.5V
≤ 5.5V
≤ 5.5V
≤ 5.5V
≤ 5.5V
≤ 5.5V
≤ 5.5V
≤ 5.5V
≤ 5.5V
O
Condition
≤ +125˚C). Unless otherwise noted V
≤ 350 mA
4
Operating Ratings
Thermal Properties
ESD Rating (Note 3)
Human Body Model:
VIN, SW, FB, EN, GND
Machine Model:
Junction-to-Ambient
Thermal Resistance (θ
(SOT23-5)
Input Voltage Range
Recommended Load Current
Junction Temperature (T
Ambient Temperature (T
J
= 25˚C. Limits in boldface type apply over
−4.5
Min
-2.0
-4.5
-2.5
-5.0
-2.5
-5.5
-1.5
-2.0
-6.0
-2.5
-4.0
2.5
JA
)
A
J
0.0014
) Range
) Range
IN
0.26
Typ
0.5
0.1
= 3.6V, V
(Notes 1, 2)
OUT
−40˚C to +125˚C
−40˚C to +85˚C
Max
+4.0
+4.0
+4.0
+4.0
+4.0
+4.0
+3.0
+3.0
+4.0
+4.0
+4.5
+4.5
5.5
1
0A to 350 mA
= 1.8V, I
2.5V to 5.5V
250˚C/W
2.0kV
O
%/mA
Units
200V
%/V
µA
=
%
%
%
%
%
%
V
V