|
LM3674_0609 Datasheet, PDF (5/15 Pages) National Semiconductor (TI) – 2MHz, 600mA Step-Down DC-DC Converter in SOT 23-5 | |||
|
◁ |
Electrical Characteristics (Notes 2, 9, 10) Limits in standard typeface are for TJ = 25ËC. Limits in boldface
type apply over the full operating junction temperature range (â30ËC ⤠TJ ⤠125ËC). Unless otherwise noted, specifications
apply to the LM3674 with VIN = EN = 3.6V (Continued)
Note 11: Input voltage range recommended for ideal applications performance for the specified output voltages are given below
VIN = 2.7V to 5.5V for 1.0V ⤠VOUT < 1.8V
VIN = ( VOUT + VDROP OUT) to 5.5V for 1.8 ⤠VOUT⤠3.3V
Where VDROP OUT = ILOAD * (RDSON (P) + RINDUCTOR)
Note 12: ADJ configured to 1.5V output.
Note 13: For VOUT less than 2.5V, VIN = 3.6V, for VOUT greater than or equal to 2.5V, VIN = VOUT +1.
Dissipation Rating Table
θJA
TA ⤠25ËC (Power Rating) TA = 60ËC (Power Rating) TA = 85ËC (Power Rating)
250ËC/W (2 layer board)
400mW
260mW
160mW
130ËC/W (4 layer board)
770mW
500mW
310mW
5
www.national.com
|
▷ |