Datasheet

3.8.2 USB VREG electrical specifications
Table 30. USB VREG electrical specifications
Symbol Description Min. Typ.
1
Max. Unit Notes
VREGIN Input supply voltage 2.7 — 5.5 V
I
DDon
Quiescent current — Run mode, load current
equal zero, input supply (VREGIN) > 3.6 V
— 125 186 μA
I
DDstby
Quiescent current — Standby mode, load
current equal zero
— 1.1 10 μA
I
DDoff
Quiescent current — Shutdown mode
• VREGIN = 5.0 V and temperature=25 °C
• Across operating voltage and temperature
—
—
650
—
—
4
nA
μA
I
LOADrun
Maximum load current — Run mode — — 120 mA
I
LOADstby
Maximum load current — Standby mode — — 1 mA
V
Reg33out
Regulator output voltage — Input supply
(VREGIN) > 3.6 V
• Run mode
• Standby mode
3
2.1
3.3
2.8
3.6
3.6
V
V
V
Reg33out
Regulator output voltage — Input supply
(VREGIN) < 3.6 V, pass-through mode
2.1 — 3.6 V 2
C
OUT
External output capacitor 1.76 2.2 8.16 μF
ESR External output capacitor equivalent series
resistance
1 — 100 mΩ
I
LIM
Short circuit current — 290 — mA
1. Typical values assume VREGIN = 5.0 V, Temp = 25 °C unless otherwise stated.
2. Operating in pass-through mode: regulator output voltage equal to the input voltage minus a drop proportional to I
Load
.
3.8.3 SPI switching specifications
The Serial Peripheral Interface (SPI) provides a synchronous serial bus with master and
slave operations. Many of the transfer attributes are programmable. The following
tables provide timing characteristics for classic SPI timing modes. See the SPI chapter
of the chip's Reference Manual for information about the modified transfer formats used
for communicating with slower peripheral devices.
Peripheral operating requirements and behaviors
36 Kinetis KL25 Sub-Family, Rev4 03/2014.
Freescale Semiconductor, Inc.