LM3671MFX-1.375 National Semiconductor, LM3671MFX-1.375 Datasheet - Page 5

• Manufacturer Part Number: LM3671MFX-1.375
• Description: 2MHz / 600mA Step-Down DC-DC Converter in SOT23-5
• Manufacturer: National Semiconductor

Electrical Characteristics
type apply over the full operating junction temperature range (−25˚C ≤ T
apply to the LM3671 Typical Application Circuit (Figure. 1) with V
Note 8: Refer to datasheet curves for closed loop data and its variation with regards to supply voltage and temperature. Electrical Characteristic table reflects open
loop data (FB=0V and current drawn from SW pin ramped up until cycle by cycle current limit is activated). Closed loop current limit is the peak inductor current
measured in the application circuit by increasing output current until output voltage drops by 10%.
Note 9: 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 10: The parameters in the electrical characteristic table are tested at V
to datasheet curves.
Note 11: Input voltage range for all voltage options is 2.8V to 5.5V. The voltage range recommended (Fixed Voltage parts) for ideal applications performance with
500mA or higher output current is given below.
V
V
Dissipation Rating Table
IN
IN
= 2.8V to 4.5V for V
= 3.0V to 4.5V for V
250˚C/W
θ
JA
OUT
OUT
= 1.2V, 1.25V, 1.375V, 1.5V and 1.6V.
= 1.8V and 1.875V.
Power Rating
T
400mW
A
≤ 25˚C
(Notes 2, 9, 10) Limits in standard typeface are for T
IN
= 3.6V unless otherwise specified. For performance over the input voltage range refer
5
IN
= EN = 3.6V, V
Power Rating
J
T
260mW
A
≤ +125˚C). Unless otherwise noted, specifications
= 60˚C
OUT
= 1.5V (Continued)
J
= 25˚C. Limits in boldface
Power Rating
T
160mW
A
= 85˚C
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