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Performance Summary; Typical Performance Characteristics - Analog Devices EVAL-LT8624S-AZ-IBB User Manual

Lt8624s 18v, 4a synchronous step-down silent switcher with ultra-low noise reference used as an ibb converter

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Evaluation Board User Guide
Performance Summary (T
PARAMETER
Input Voltage Range V
IN
Output Voltage
Default Switching Frequency
Maximum Output Current
Efficiency

Typical Performance Characteristics

(Standard Demo Board at F
Figure 1. Efficiency vs. Load Current (Input from V
Figure 3. CISPR32 Radiated EMI Performance
(V
= 12V, V
IN
analog.com
= 25°C)
A
CONDITIONS
Derating Necessary for Certain V
V
, and Thermal Conditions
OUT
V
= 5V
IN
F
= 2MHz
SW
V
= -5V at I
OUT
OUT
= 2MHz, MODE = FCM, T
SW
Terminal)
IN
= -5V, I
= 2A)
OUT
OUT
EVAL-LT8624S-AZ-IBB
MIN
2.7
-4.96
,
2
IN
(V
= 5V)
IN
= 2A
= +25°C, unless otherwise noted.)
A
Figure 2. Case Temperature Rise vs. V
Figure 4. Noise Spectral Density
(V
IN
TYP
MAX
18 - |V
OUT
-5
-5.04
2
4
(V
= 12V)
IN
85
= 5V, V
= -5V, I
= 2A)
OUT
OUT
UNITS
|
V
V
MHz
A
%
IN
Rev A
2 of 9

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