L4979D-E STMicroelectronics, L4979D-E Datasheet - Page 13

• Manufacturer Part Number: L4979D-E
• Description: IC REG PROGR WATCHDOG 8SOIC
• Manufacturer: STMicroelectronics
• Type: Step-Down (Buck)r

Specifications of L4979D-E

• Internal Switch(s): Yes
• Synchronous Rectifier: No
• Number Of Outputs: 1
• Voltage - Output: 5V
• Current - Output: 150mA
• Voltage - Input: 5.6 ~ 31 V
• Operating Temperature: -40°C ~ 150°C
• Mounting Type: Surface Mount
• Package / Case: 8-SOIC (0.236", 6.0mm Width)
• Power - Output: *
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Frequency - Switching: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

Figure 7.
Equation 1: pulse calculation formula
where δ = t
Figure 8.
P
/T
SO-8 thermal impedance junction ambient single pulse
Thermal fitting model of V
Z THδ
Doc ID 10262 Rev 7
=
R TH δ
reg
⋅
in SO-8
+
Z THtp 1 δ
(
–
)
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