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参数资料
| 型号： | TPS54073PWPR |
| 厂商： | TEXAS INSTRUMENTS INC |
| 元件分类： | 稳压器 |
| 英文描述： | 25 A SWITCHING REGULATOR, 762 kHz SWITCHING FREQ-MAX, PDSO28 |
| 封装： | GREEN, PLASTIC, HTSSOP-28 |
| 文件页数： | 21/26页 |
| 文件大小： | 850K |
| 代理商： | TPS54073PWPR |
SLVS547 – FEBRUARY 2005 ............................................................................................................................................................................................ www.ti.com
ELECTRICAL CHARACTERISTICS (continued)
TJ = –40°C to 125°C, VIN = 3 V to 4 V, PVIN = 2.2 V to 4 V (unless otherwise noted)
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
ERROR AMPLIFIER
Error amplifier open-loop voltage gain
1 k
COMP to AGND(5)
90
110
dB
Error amplifier unity gain bandwidth
Parallel 10 k
, 160 pF COMP to AGND(5)
3
5
MHz
Error amplifier common mode input voltage
Powered by internal LDO(5)
0
VBIAS
V
range
Input bias current, VSENSE
VSENSE = Vref
60
250
nA
Output voltage slew rate (symmetric), COMP
1
1.4
V/
s
PWM COMPARATOR
PWM comparator propagation delay time, PWM
comparator input to PH pin (excluding
10-mV overdrive(5)
70
85
ns
deadtime)
SLOW-START/ENABLE
Enable threshold voltage, SS/ENA
0.82
1.2
1.4
V
Enable hysteresis voltage, SS/ENA(5)
0.03
V
Falling edge deglitch, SS/ENA(5)
2.5
s
Internal slow-start time
2.6
3.35
4.1
ms
Charge current, SS/ENA
SS/ENA = 0 V
2
5
8
A
Discharge current, SS/ENA
SS/ENA = 0.2 V, VIN = 2.7 V, PVIN = 2.5 V
1.3
2.3
4
mA
POWER GOOD
Power-good threshold voltage
VSENSE falling
93
%Vref
Power-good hysteresis voltage(5)
3
%Vref
Power-good falling edge deglitch(5)
35
s
Output saturation voltage, PWRGD
I(sink) = 2.5 mA
0.18
0.3
V
Leakage current, PWRGD
VIN = 3.3 V, PVIN = 2.5 V
1
A
CURRENT LIMIT
Current limit
VIN = 3.3 V, PVIN = 2.5 V (5), Output shorted
14.5
21
A
Current limit leading edge blanking time(5)
100
ns
Current limit total response time(5)
200
ns
THERMAL SHUTDOWN
Thermal shutdown trip point(5)
135
165
°C
Thermal shutdown hysteresis(5)
10
°C
OUTPUT POWER MOSFETS
VIN = 3 V, PVIN = 2.5 V
8
21
rDS(on)
Power MOSFET switches
m
VIN = 3.6 V, PVIN = 2.5 V
8
18
(5)
Specified by design
4
Copyright 2005, Texas Instruments Incorporated
Product Folder Link(s): TPS54073
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