TPS560430
ZHCSI48B –SEPTEMBER 2017–REVISED JUNE 2018
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7.6 Timing Requirements
Limits apply over the recommended operating junction temperature (TJ ) range of –40°C to +125°C, unless otherwise stated.
Minimum and maximum limits are specified through test, design or statistical correlation. Typical values represent the most
likely parametric norm at TJ = 25 °C, and are provided for reference purposes only. Unless otherwise stated, the following
conditions apply: VIN = 4 V to 36 V.
PARAMETER
Internal soft-start time
Hiccup time
TEST CONDITIONS
MIN
TYP
MAX
UNIT
SOFT START
The time of internal reference to
increase from 10% to 90% of VREF
VIN = 12 V
TSS
,
1.8
ms
HICCUP
THICCUP
VIN = 12 V
135
ms
7.7 Switching Characteristics
Limits apply over the recommended operating junction temperature (TJ ) range of –40°C to +125°C, unless otherwise stated.
Minimum and maximum limits are specified through test, design or statistical correlation. Typical values represent the most
likely parametric norm at TJ = 25 °C, and are provided for reference purposes only. Unless otherwise stated, the following
conditions apply: VIN = 4 V to 36 V.
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
SWITCHING NODE (SW PIN)
tON_MIN
Minimum turn-on time
Minimum turn-off time
Maximum turn-on time
IOUT = 600 mA
60
100
7.5
ns
ns
µs
tOFF_MIN
IOUT = 600 mA
tON_MAX
OSCILLATOR
1.1-MHz version
2.1-MHz version
0.935
1.785
1.1
2.1
1.265
2.415
MHz
MHz
fSW
Oscillator frequency
6
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