LM3670MF-1.2EV National Semiconductor, LM3670MF-1.2EV Datasheet - Page 5

• 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

I
V
R
R
I
I
I
η
V
V
I
F
Q
LKG (P)
LKG (N)
LIM
EN
OSC
UVLO
DSON (P)
DSON (N)
IH
IL
Electrical Characteristics
the full operating junction temperature range (−40˚C ≤ T
150mA, EN = V
Symbol
Note 1: Absolute Maximum Ratings indicate limits beyond which damage to the component may occur. Operating Ratings are conditions under which operation of
the device is guaranteed. Operating Ratings do not imply guaranteed performance limits. For guaranteed performance limits and associated test conditions, see the
Electrical Characteristics tables.
Note 2: All voltages are with respect to the potential at the GND pin.
Note 3: The Human body model is a 100 pF capacitor discharged through a 1.5 kΩ resistor into each pin. The machine model is a 200 pF capacitor discharged
directly into each pin. MIL-STD-883 3015.7
Note 4: Output voltage specification for the adjustable version includes tolerance of the external resistor divider.
Note 5: The input voltage range recommended for the specified output voltages are given below:
V
V
Where V
IN
IN
= 2.5V to 5.5V for 0.7V ≤ V
= ( V
DROP OUT
OUT
+ V
DC Bias Current into V
Minimum V
will be disabled
Pin-Pin Resistance for PFET
Pin-Pin Resistance for NFET
P Channel Leakage Current
N Channel Leakage Current
Switch Peak Current Limit
Efficiency
(V
Logic High Input
Logic Low Input
Enable (EN) Input Current
Internal Oscillator Frequency
DROP OUT
IN
= I
IN
= 3.6V, V
LOAD
(Continued)
) to 5.5V for 1.875 ≤ V
* (R
Parameter
IN
OUT
DSON (P)
below which V
OUT
<
= 1.8V)
1.875V
+ R
IN
INDUCTOR
OUT
OUT
≤ 3.3V
Limits in standard typeface are for T
)
No load, device is not switching
(V
programmed output voltage)
V
V
V
V
I
I
I
I
I
I
PWM Mode
LOAD
LOAD
LOAD
LOAD
LOAD
LOAD
IN
IN
DS
DS
OUT
=V
=V
=5.5V
=5.5V
GS
GS
= 1 mA
= 10 mA
= 100 mA
= 200 mA
= 300 mA
= 350 mA
forced higher than
=3.6V
=3.6V
J
Condition
≤ +125˚C). Unless otherwise noted V
5
J
= 25˚C. Limits in boldface type apply over
Min
400
550
1.3
IN
1000
0.01
Typ
360
250
620
2.4
0.1
0.1
15
91
94
94
94
92
90
= 3.6V, V
OUT
1300
Max
690
660
750
1.5
0.4
30
1
1
= 1.8V, I
www.national.com
O
Units
kHz
mΩ
mΩ
mA
µA
µA
µA
µA
=
%
V
V
V