BCM89359 Advance Data Sheet
Core Buck Switching Regulator
Table 39: Core Buck Switching Regulator (CBUCK) Specifications (Cont.)
Specification
Notes
Min.
Typ.
Max. Units
– µs
Input supply voltage ramp-up
time
0 to 4.3V
40
–
a. The maximum continuous voltage is 4.8V. Voltages up to 5.5V for up to 10 seconds, cumulative duration, over
the lifetime of the device are allowed. Voltages as high as 5V for up to 250 seconds, cumulative duration, over
the lifetime of the device are allowed.
b. Effective inductance under current-bias and part-to-part tolerance.
c. Minimum capacitor value refers to the residual capacitor value after taking into account the part-to-part
tolerance, DC-bias, temperature, and aging.
d. Total capacitance includes those connected at the far end of the active load.
Broadcom®
September 9, 2014 • 89359-DS100-R
Page 119
BROADCOM CONFIDENTIAL
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