LM3673TL-1.8/NOPB National Semiconductor, LM3673TL-1.8/NOPB Datasheet - Page 5

• Manufacturer Part Number: LM3673TL-1.8/NOPB
• Description: IC CONV DC/DC 350MA 1.8V 5MCRSMD
• Manufacturer: National Semiconductor
• Series: PowerWise®r
• Type: Step-Down (Buck)r

Specifications of LM3673TL-1.8/NOPB

• Internal Switch(s): Yes
• Synchronous Rectifier: Yes
• Number Of Outputs: 1
• Voltage - Output: 1.8V
• Current - Output: 350mA
• Frequency - Switching: 2MHz
• Voltage - Input: 2.7 ~ 5.5 V
• Operating Temperature: -30°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 5-MicroSMD
• Power - Output: 1.18W
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: LM3673TL-1.8TR

Note 10: The input voltage range recommended for ideal applications performance for the specified output voltages are given below:
V
V
V
where V
Note 11: Test condition: for V
Dissipation Rating Table
IN
IN
IN
= 2.7V to 4.5V for 1.1V
= 2.7V to 5.5V for 1.5V
= (V
85°C/W (4 layer board) 5-
OUT
DROPOUT
Bump MicroSMD
+ V
DROPOUT
= I
θ
JA
LOAD
) to 5.5V for 1.8V
*( R
≤
≤
DSON, PFET
V
V
OUT
OUT
OUT
less than 2.5V, V
< 1.5V
< 1.8V
+ R
≤
INDUCTOR
V
OUT
≤
Power Rating
)
IN
3.3V
= 3.6V; for V
T
1179mW
A
≤
25°C
OUT
greater than or equal to 2.5V, V
5
Power Rating
T
765mW
A
= 60°C
IN
= V
OUT
+ 1V.
Power Rating
T
470mW
A
= 85°C
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