LM3691TL-0.9 NSC [National Semiconductor], LM3691TL-0.9 Datasheet - Page 4

• Manufacturer Part Number: LM3691TL-0.9
• Description: High Accuracy, Miniature 1A, Step-Down DC-DC Converter for Portable Applications
• Manufacturer: NSC [National Semiconductor]

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V
I
I
I
R
R
I
V
V
I
F
V
SHDN
Q_ECO
Q_PWM
LIM
EN,MODE
SW
FB
IH
IL
ON
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.
If Military/Aerospace specified devices are required, please
contact the National Semiconductor Sales Office/Distributors
for availability and specifications.
Electrical Characteristics
apply over the operating ambient temperature range (−30°C
the LM3691 open loop Typical Application Circuit with V
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: 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
Note 6: Junction-to-ambient thermal resistance is highly application and board layout dependent. In applications where high power dissipation exists, special
care must be given to thermal dissipation issues in board design.
Note 7: Min and Max limits are guaranteed by design, test or statistical analysis. Typical numbers are not guaranteed, but do represent the most likely norm.
Note 8: The parameters in the electrical characteristic table are tested under open loop conditions at V
over the input voltage range and closed loop condition, refer to the datasheet curves.
V
EN, MODE pin to GND
FB, SW pin
Junction Temperature (T
Storage Temperature Range
Continuous Power Dissipation
(Note 3)
Maximum Lead Temperature
ESD Rating (Note 4)
Symbol
IN
Human Body Model
Machine Model
JA
Pin to GND
x P
(Soldering, 10 sec.)
D-MAX
). Due to the pulsed nature of testing the part, the temp in the Electrical Characteristic table is specified as T
Feedback Voltage
Shutdown Supply Current
ECO Mode I
PWM Mode I
Pin-Pin Resistance for PFET
Pin-Pin Resistance for NFET
Switch Peak Current Limit
Logic High Input
Logic Low Input
Input Current
Switching Frequency
UVLO threshold
D-MAX
) and the junction to ambient thermal resistance of the package (θ
Parameter
J-MAX
q
q
A-MAX
)
) is dependent on the maximum operating junction temperature (T
(V
IN
+ 0.2V) w/ 6.0V max
−65°C to +150°C
Internally Limited
(Notes 2, 7, 8)
(GND−0.2V) to
−0.2V to 6.0V
−0.2V to 6.0V
(Note 1)
PWM Mode. No load V
PWM Mode. No load V
EN = 0V
ECO Mode
PWM Mode
V
V
Open loop
PWM Mode
V
V
IN
IN
IN
IN
= V
= V
rising
falling
+150°C
260°C
200V
2 kV
GS
GS
IN
= EN = 3.6V.
= 3.6V, I
= 3.6V, I
Limits in standard typeface are for T
≤
T
4
Condition
A
= T
O
O
Operating Ratings
Thermal Properties
Input Voltage Range
Recommended Load Current
Junction Temperature (T
Ambient Temperature (T
5)
Junction-to-Ambient Thermal
Resistance (θ
(micro SMD)
J
= 200 mA
= −200 mA
≤
JA
OUT
OUT
+85°C). Unless otherwise noted, specifications apply to
) in the application, as given by the following equation: T
= 0.75V to 1.0V
= 1.1V to 1.8V
JA
IN
) (Note 6)
J-MAX
= 3.6V unless otherwise specified. For performance
), the maximum power dissipation of the device in
A
J
1250
Min
) Range
) Range (Note
-10
1.2
3.6
-1
A
= 25°C. Limits in boldface type
J
A
= 150°C (typ.) and disengages at T
= T
(Notes 1, 2)
J
1500
.
0.03
0.01
Typ
490
160
115
2.2
2.1
64
4
0 mA to 1000 mA
−40°C to +125°C
−40°C to +85°C
1700
Max
+10
600
250
180
0.4
4.4
+1
80
2.3V to 5.5V
1
1
A-MAX
85°C/W
= T
Units
MHz
mΩ
mΩ
J-MAX
mV
mA
µA
µA
µA
µA
%
V
V
V
V
J