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参数资料
| 型号： | TPS5120DBTG4 |
| 厂商： | TEXAS INSTRUMENTS INC |
| 元件分类： | 稳压器 |
| 英文描述： | 1.5 A DUAL SWITCHING CONTROLLER, 500 kHz SWITCHING FREQ-MAX, PDSO30 |
| 封装： | GREEN, PLASTIC, TSSOP-30 |
| 文件页数： | 2/23页 |
| 文件大小： | 489K |
| 代理商： | TPS5120DBTG4 |
TPS5120
DUAL OUTPUT, TWOPHASE SYNCHRONOUS BUCK DC/DC CONTROLLER
SLVS278E – AUGUST 2000 – REVISED MARCH 2003
10
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
electrical characteristics over recommended free-air temperature range, VCC = 7 V (unless
otherwise noted) (continued)
5-V regulator
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
VO
Output voltage
IO = 0 mA to 50 mA,
TA = 25°C
VCC = 5.5 V to 28 V,
4.8
5.2
V
R(egin)
Line regulation
VCC = 5.5 V to 28 V,
I =10 mA
20
mV
R(egl)
Load regulation
I = 1 mA to 10 mA,
VCC = 5.5 V
40
mV
IOS
Short circuit output current
5VREG = 0 V,
TA = 25°C
65
mA
V(TO_H)
UVLO threshold voltage
5V OUT voltage
3.6
4.2
V
V(TO_L)
UVLO threshold voltage
5V_OUT voltage
3.5
4.1
V
Vhys
Hysteresis
5V_OUT voltage
30
150
mV
output drivers
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
OUT_u sink current
VO = 3 V
1.2
A
OUT_u source current
VO = 2 V
–1.5
A
OUT_d sink current
VO = 3 V
1.5
A
OUT_d source current
VO = 2 V
–1.5
A
I(TRIP)
TRIP pin current
TA = 25°C
11.5
13
14.5
A
soft start
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
I(SOFT)
Soft start current
1.6
2.3
2.9
A
V(TO_H)
Threshold voltage (SKIP mode)
3.7
V
V(TO_L)
Threshold voltage (SKIP mode)
2.5
V
output voltage monitor
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
OVP comparator threshold
0.91
0.95
0.99
V
UVP comparator threshold
0.64
0.68
0.72
V
PG comparator 1, 2 threshold
0.75
0.78
0.81
V
PG comparator 3, 4 threshold
0.88
0.91
0.94
V
PG propagation dela from INV to POWERGOOD
Turnon
13
s
PG propagation delay from INV to POWERGOOD
Turnoff
1.2
s
Timer latch current source
UVP protection
1.5
2.3
3.1
A
Timer latch current source
OVP protection
8
11.5
15
A
supply current
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
ICC
Supply current
TA = 25°C, CT = 0 V, INV = 0 V
1.1
1.5
mA
ICC(S)
Shutdown current
STBY 1, STBY2, 5V_STBY = 0 V
0.001
10
A
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