LM2705MFX-ADJ/NOPB National Semiconductor, LM2705MFX-ADJ/NOPB Datasheet - Page 3

• Manufacturer Part Number: LM2705MFX-ADJ/NOPB
• Description: IC CONV DC/DC 150MA ADJ SOT23-5
• Manufacturer: National Semiconductor

Specifications of LM2705MFX-ADJ/NOPB

• Constant Current: *
• Constant Voltage: *
• Topology: *
• Number Of Outputs: *
• Internal Driver: *
• Type - Primary: *
• Type - Secondary: *
• Frequency: *
• Voltage - Supply: *
• Voltage - Output: *
• Mounting Type: Surface Mount
• Package / Case: SOT-23-5, SC-74A, SOT-25
• Operating Temperature: *
• Current - Output / Channel: *
• Internal Switch(s): *
• Efficiency: *
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: LM2705MFX-ADJ

I
V
I
I
V
R
T
I
I
UVP
V
Hysteresis
SHDN
Threshold
θ
Q
CL
B
SD
L
JA
OFF
FB
IN
FB
DSON
Absolute Maximum Ratings
If Military/Aerospace specified devices are required,
please contact the National Semiconductor Sales Office/
Distributors for availability and specifications.
Electrical Characteristics
Specifications in standard type face are for T
Range (T
Symbol
Note 1: Absolute maximum ratings are limits beyond which damage to the device may occur. Operating Ratings are conditions for which the device is intended
to be functional, but device parameter specifications may not be guaranteed. For guaranteed specifications and test conditions, see the Electrical Characteristics.
Note 2: The maximum allowable power dissipation is a function of the maximum junction temperature, T
θ
temperature is calculated using: P
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.
Note 4: ESD susceptibility using the machine model is 150V for SW pin.
Note 5: All limits guaranteed at room temperature (standard typeface) and at temperature extremes (bold typeface). All room temperature limits are 100%
production tested or guaranteed through statistical analysis. All limits at temperature extremes are guaranteed via correlation using standard Statistical Quality
Control (SQC) methods. All limits are used to calculate Average Outgoing Quality Level (AOQL).
Note 6: Typical numbers are at 25°C and represent the most likely norm.
Note 7: Feedback current flows into the pin.
V
SW Voltage
FB Voltage
SHDN Voltage
Maximum Junction Temp. T
(Note
Lead Temperature
(Soldering 10 sec.)
JA
SOT23-5 Thermal Resistance
IN
, and the ambient temperature, T
2)
J
= −40°C to +125°C). Unless otherwise specified V
Device Disabled
Device Enabled
Shutdown
FeedbackTrip Point
Switch Current Limit
FB Pin Bias Current
Input Voltage Range
Switch R
Switch Off Time
SHDN Pin Current
Switch Leakage Current
Input Undervoltage Lockout
Feedback Hysteresis
SHDN low
SHDN High
DSON
Parameter
D
A
J
(MAX) = (T
. See the Electrical Characteristics table for the thermal resistance. The maximum allowable power dissipation at any ambient
J(MAX)
− T
FB = 1.3V
FB = 1.2V
SHDN = 0V
FB = 1.23V
SHDN = V
SHDN = V
SHDN = GND
V
ON/OFF Threshold
J
SW
A
= 25°C and those in boldface type apply over the full Operating Temperature
)/θ
(Note
= 20V
JA
. Exceeding the maximum allowable power dissipation will cause excessive die temperature.
150°C
300°C
Conditions
1)
IN
IN
7.5V
7.5V
21V
(Note
, T
, T
2V
J
J
= 25°C
= 125°C
IN
7)
=2.2V.
3
Operating Conditions
Vapor Phase
(60 sec.)
Infrared
(15 sec.)
ESD Ratings
Junction Temperature
(Note
Supply Voltage
SW Voltage Max.
Human Body Model
Machine Model
5)
(Note
1.189
Min
100
2.2
1.1
(Note
5)
J
(MAX), the junction-to-ambient thermal resistance,
3)
(Note
(Note
1.237
0.01
0.05
Typ
235
150
400
220
0.7
1.8
0.7
0.7
40
30
15
0
0
8
4)
6)
(Note
1.269
Max
300
180
120
2.5
7.0
1.6
0.3
70
80
5
−40°C to +125°C
5)
www.national.com
2.2V to 7V
215°C
220°C
20.5V
Units
°C/W
200V
mA
mV
µA
nA
nA
µA
ns
Ω
2kV
V
V
V
V