LM3670MFX-2.5 National Semiconductor, LM3670MFX-2.5 Datasheet - Page 4

• Manufacturer Part Number: LM3670MFX-2.5
• Description: Miniature Step-Down DC-DC Converter for Ultra Low Voltage Circuits
• Manufacturer: National Semiconductor

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Symbol
V
V
V
I
I
V
R
R
I
I
I
η
Q_SHDN
Q_PFM
LKG (P)
LKG (N)
LIM
IN
OUT
REF
UVLO
DSON (P)
DSON (N)
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
I
V
EN Pin: Voltage to GND
FB, SW Pin:
Junction Temperature (T
Storage Temperature Range
Maximum Lead Temperature
O
=150mA, EN=V
IN
(Soldering, 10 sec.)
Pin: Voltage to GND
Parameter
Input Voltage Range
Fixed Output Voltage
Adjustable Output Voltage
Line Regulation
Load Regulation
Internal Reference Voltage
Shutdown Supply Current
DC Bias Current into V
Minimum V
V
Pin-Pin Resistance for PFET
Pin-Pin Resistance for NFET
P Channel Leakage Current
N Channel Leakage Current
Switch Peak Current Limit
Efficiency
(V
OUT
IN
= 3.6V, V
will be disabled
IN
IN
J-MAX
below which
OUT
= 1.8V)
)
IN
−45˚C to +125˚C
−45˚C to +150˚C
(GND−0.2V) to
Limits in standard typeface are for T
Condition
2.5V ≤ V
I
2.5V ≤ V
0 mA ≤ I
2.5V ≤ V
I
2.5V ≤ V
0 mA ≤ I
2.5V ≤ V
I
150 mA ≤ I
T
No load, device is not switching
(V
programmed output voltage)
V
V
V
V
I
I
I
I
I
I
O
O
O
LOAD
LOAD
LOAD
LOAD
LOAD
LOAD
−0.2V to 6.0V
−0.2V to 6.0V
A
IN
IN
DS
DS
OUT
(V
=85
= 10 mA
= 10 mA
= 10 mA
(Note 1)
=V
=V
=5.5V
=5.5V
IN
GS
GS
= 1 mA
= 10 mA
= 100 mA
= 200 mA
= 300 mA
= 350 mA
o
forced higher than
+ 0.2V)
C
260˚C
O
O
=3.6V
=3.6V
IN
IN
IN
IN
IN
≤ 350 mA
≤ 350 mA
O
≤ 5.5V
≤ 5.5V
≤ 5.5V
≤ 5.5V
≤ 5.5V
J
≤ 350 mA
≤ +125˚C). Unless otherwise noted V
4
Operating Ratings
Thermal Properties
ESD Rating (Note 3)
Human Body Model:
VIN,SW,FB,GND
EN
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
-1.5
-1.0
-4.0
400
2.5
JA
)
A
J
) Range
) Range
IN
0.0014
0.26
Typ
360
250
620
0.5
0.1
2.4
0.1
0.1
= 3.6V, V
15
91
94
94
94
92
90
(Notes 1, 2)
OUT
−40˚C to +125˚C
−40˚C to +85˚C
+3.0
+3.0
+2.5
+2.5
Max
690
660
750
5.5
1.5
30
0A to 350 mA
1
1
= 1.8V,
2.5V to 5.5V
250˚C/W
2.0kV
500V
200V
%/mA
Units
%/V
mΩ
mΩ
mA
µA
µA
µA
µA
%
%
%
%
%
V
V
V