LM3671MF-1.25 National Semiconductor, LM3671MF-1.25 Datasheet - Page 6

• Manufacturer Part Number: LM3671MF-1.25
• Description: DC/DC CONVERTER, 1.25V, SMD, 3671
• Manufacturer: National Semiconductor

Specifications of LM3671MF-1.25

• Primary Input Voltage: 2.25V
• No. Of Outputs: 1
• Output Voltage: 1.25V
• Output Current: 600mA
• Voltage Regulator Case Style: SOT-23
• No. Of Pins: 5
• Operating Temperature Range: -25°C To +85°C
• Svhc: No
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

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V
V
V
I
I
R
R
I
V
V
I
F
SHDN
Q
LIM
EN
OSC
IN
FB
REF
DSON (P)
DSON (N)
IH
IL
Absolute Maximum Ratings
If Military/Aerospace specified devices are required,
please contact the National Semiconductor Sales Office/
Distributors for availability and specifications.
Electrical Characteristics
type apply over the full operating ambient temperature range (−30˚C ≤ T
apply to the LM3671MF/TL with V
Note 1: Absolute Maximum Ratings indicate limits beyond which damage to the device 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: Internal thermal shutdown circuitry protects the device from permanent damage. Thermal shutdown engages at T
130˚C (typ.).
Note 4: 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 5: In Applications where high power dissipation and/or poor package resistance is present, the maximum ambient temperature may have to be derated.
Maximum ambient temperature (T
the application (P
(θ
V
FB, SW, EN Pin:
Continuous Power Dissipation
(Note 3)
Junction Temperature (T
Storage Temperature Range
Maximum Lead Temperature
ESD Rating (Note 4)
V
Symbol
JA
IN
IN
(Soldering, 10 sec.)
Human Body Model:
Human Body Model: EN
Machine Model: All Pins
x P
,GND,SW,FB
Pin: Voltage to GND
D-MAX
). Refer to Dissipation rating table for P
Input Voltage Range
Feedback Voltage (Fixed) MF
Feedback Voltage (Fixed) TL
Feedback Voltage (ADJ) MF
(Note 11)
Line Regulation
Load Regulation
Internal Reference Voltage
Shutdown Supply Current
DC Bias Current into V
Pin-Pin Resistance for PFET
Pin-Pin Resistance for NFET
Switch Peak Current Limit
Logic High Input
Logic Low Input
Enable (EN) Input Current
Internal Oscillator Frequency
D-MAX
) and the junction to ambient thermal resistance of the package (θ
J-MAX
A-MAX
Parameter
)
) is dependent on the maximum operating junction temperature (T
IN
IN
= EN = 3.6V
D-MAX
Internally Limited
−65˚C to +150˚C
(Notes 2, 8, 9) Limits in standard typeface are for T
(GND−0.2V) to
−0.2V to 6.0V
(V
values at different ambient temperatures.
(Note 1)
IN
+ 0.2V)
+125˚C
2.0 kV
260˚C
500V
200V
(Note 10)
PWM mode
PWM mode
2.7V ≤ V
I
100 mA ≤ I
V
EN = 0V
No load, device is not switching
(FB forced higher than
programmed output voltage)
V
V
Open Loop (Note 7)
PWM Mode
O
IN
IN
IN
= 10 mA
= 3.6V
= V
= V
GS
GS
6
IN
= 3.6V
= 3.6V
O
≤ 5.5V
Condition
Operating Ratings
Thermal Properties
Input Voltage Range
Recommended Load Current
Junction Temperature (T
Ambient Temperature (T
Junction-to-Ambient
Thermal Resistance (θ
(SOT23-5) for 4 layer board
(Note 6)
Junction-to-Ambient
Thermal Resistance (θ
(Micro SMD) for 4 layer
board (Note 6)
≤ 600 mA
JA
) in the application, as given by the following equation:T
A
≤ +85˚C). Unless otherwise noted, specifications
J-MAX
), the maximum power dissipation of the device in
JA
JA
A
J
)
)
Min
-2.5
830
2.7
1.0
1.6
) Range
) Range (Note 5)
-4
-4
J
J
= 150˚C (typ.) and disengages at T
= 25˚C. Limits in boldface
(Notes 1, 2)
0.0013
0.031
1020
0.01
0.01
Typ
380
250
0.5
16
2
−30˚C to +125˚C
1150
0mA to 600 mA
Max
+2.5
−30˚C to +85˚C
500
400
5.5
0.4
2.6
+4
+4
35
A-MAX
1
1
2.7V to 5.5V
130˚C/W
85˚C/W
= T
J-MAX
%/mA
Units
MHz
%/V
mΩ
mΩ
mA
µA
µA
µA
%
%
V
V
V
V
J
=
−