TPS43000
SLUS489 鈥?OCTOBER 2001
electrical characteristics over recommended operating junction temperature range,
T
A
= 鈥?0_C to 85_C for the TPS43000, RT = 75 k鈩?(500 kHz), VIN = VP = 3.5 V, VOUT = 3.1 V, COMP/FB
pins shorted, BUCK-configured, T
A
= T
J
(unless otherwise noted)
NDRV
PARAMETER
VIN driven rise time
VIN driven fall time
VIN driven pull-up resistance
VIN driven pull-down resistance
BUCK P-channel MOSFET off to N-channel
MOSFET on anti-x delay time
VOUT driven rise time
VOUT driven fall time
VOUT driven pull-up resistance
VOUT driven pull-down resistance
BOOST P-channel MOSFET off to N-channel MOS-
FET on anti-x delay time
VP = VOUT = VIN = 5 V,
V
VP = VOUT = 5 V,
BUCK grounded
LP mode activated
VIN = 3.1 V,
10
VP = VIN = 5 V
V,
VOUT = 3 1 V
3.1
10
VP = VIN = 5 V,
VOUT = 3.1 V,
PDRV and NDRV transitioning HI delta
CO = 1 nF,
VP = VOUT = 5 V,
VIN = 3.1 V,
BUCK grounded
TEST CONDITIONS
CO = 1 nF,
VOUT = 3.1 V
VP = VIN = 5 V,
MIN
TYP
25
20
6.5
2.25
35
25
20
6.5
2.25
35
MAX
45
40
10.0
4.00
75
45
40
10.0
4.00
75
鈩?/div>
ns
ns
ns
鈩?/div>
UNIT
PDRV
PARAMETER
VP driven rise time
VP driven fall time
VP driven pull-up resistance
VP driven pull-down resistance
BUCK N-channel MOSFET off to P-channel MOS-
FET on anti-x delay time
BOOST N-channel MOSFET off to P-channel MOS-
FET on anti-x delay time
VP = VIN = 5 V
V,
VOUT = 3 1 V
3.1
10
10
VP = VIN = 5 V,
VOUT = 3.1 V,
NDRV and PDRV transitioning LO delta
VP = VOUT = 5 V,
BUCK grounded
VIN = 3.1 V,
TEST CONDITIONS
VP = VIN = 5 V,
CO = 1 nF
VOUT = 3.1 V
MIN
TYP
15
15
2.5
3.5
30
30
MAX
40
40
4.0
6.0
75
ns
75
ns
                        
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