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参数资料
| 型号： | TPS5110PWG4 |
| 厂商： | TEXAS INSTRUMENTS INC |
| 元件分类： | 稳压器 |
| 英文描述： | 1.5 A SWITCHING CONTROLLER, 500 kHz SWITCHING FREQ-MAX, PDSO24 |
| 封装： | GREEN, PLASTIC, TSSOP-24 |
| 文件页数： | 34/43页 |
| 文件大小： | 813K |
| 代理商： | TPS5110PWG4 |
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TPS5110
SLVS025B APRIL 2002 REVISED JULY 2004
4
www.ti.com
ELECTRICAL CHARACTERISTICS
Over recommended free-air temperature range, VVIN_SENSE = 12 V and VREG5V_IN = 5 V (unless otherwise specified).
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
SUPPLY CURRENT SECTION
ICC
Supply current
REG5V_IN current, TA = 25_C,
VLDO_IN = 3.6 V,
VCT = VINV = VINV_LDO = VPWM_SEL = 0 V
0.9
1.4
mA
ICC(S)Shutdown current
REG5V_IN current,
VSTBY = VSTBY_LDO = 0 V
0.001
10.00
A
UNDERVOLTAGE LOCKOUT SECTION
V(TLH)Low-to-high threshold voltage
REG5V_IN voltage
3.6
4.2
V
V(TLL)High-to-low threshold voltage
REG5V_IN voltage
3.5
4.1
V
VHYS Hysteresis
REG5V_IN voltage
30
200
mV
REFERENCE VOLTAGE SECTION
VREF Reference voltage
0.85
V
TA = 25_C,
IREF = 50 A
1%
VREF(tol)
Reference voltage tolerance
0
_C ≤ TA ≤ 85_C,
IREF = 50 A
-1.5%
1.5%
VREF(tol)
Reference voltage tolerance
40
_C ≤ TA ≤ 85_C,
IREF = 50 A
2%
Reg(line)
Line regulation
IREF = 50 A,
4.5 V
≤ V(REG5V_IN) ≤ 5.5 V
0.05
5
mV
Reg(load)
Load regulation
0.1
A ≤ IREF ≤ 1 mA
0.15
5
mV
CONTROL SECTION
VIH
High-level input voltage
STBY, STBY_LDO, PWM_SEL
2.2
V
VIL
Low-level input voltage
STBY, STBY_LDO, PWM_SEL
0.3
V
OUTPUT VOLTAGE MONITOR SECTION
OVP comparator threshold voltage
SBRC, LDO
0.91
0.95
0.99
UVP comparator threshold voltage
SBRC, LDO
0.51
0.55
0.59
V
Powergood comparator 1, 4 threshold voltage
0.75
0.79
0.81
V
Powergood comparator 2, 3 threshold voltage
0.88
0.91
0.94
Powergood propagation delay from INV and
POWERGOOD high-to-low
1.2
s
Powergood propagation delay from INV and
INV_LDO to POWERGOOD
POWERGOOD low-to-high
4
s
Timer latch current source
UVP protection
1.5
2.3
3.1
A
Timer latch current source
OVP protection
80
125
180
A
OSCILLATOR SECTION
fOSC Oscillator frequency
PWM mode,
CCT = 44 pF
TA = 25_C
300
kHz
VOH CT high-level output voltage
dc
1.0
1.1
1.2
VOH CT high-level output voltage
fOSC = 300 kHz
1.17
V
VOL CT low-level output voltage
dc
0.4
0.5
0.6
V
VOL CT low-level output voltage
fOSC = 300 kHz
0.43
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