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參數資料
| 型號： | TPS53314RGFT |
| 廠商： | TEXAS INSTRUMENTS INC |
| 元件分類： | 穩壓器 |
| 英文描述： | SWITCHING REGULATOR, 1070 kHz SWITCHING FREQ-MAX, PQCC40 |
| 封裝： | 5 X 7 MM, GREEN, PLASTIC, VQFN-40 |
| 文件頁數： | 24/29頁 |
| 文件大小： | 800K |
| 代理商： | TPS53314RGFT |
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SLUSAK3
– MAY 2011
ELECTRICAL CHARACTERISTICS
Over recommended free-air temperature range, VDD = 12 V (Unless otherwise noted)
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNIT
SUPPLY VOLTAGE AND SUPPLY CURRENT
VIN pin power conversion input
VVIN
3
15
V
voltage
VDD
Supply input voltage
4.5
25
V
IVIN(leak)
VIN pin leakage current
VEN = 0 V
1
A
VDD current, TA = 25°C, No Load, VEN = 5 V,
IVDD
VDD supply current
420
590
A
VVFB = 0.630 V
IVDDSDN
VDD shutdown current
VDD current, TA = 25°C, No Load, VEN = 0 V
10
A
INTERNAL REFERENCE VOLTAGE
VFB voltage, CCM condition(1)
0.6000
V
TA = 25°C
0.597
0.600
0.603
VVFB
VFB regulation voltage
TA = 0°C to 85°C
0.5952
0.600
0.6048
V
TA = -40°C to 85°C
0.594
0.600
0.606
IVFB
VFB input current
VVFB = 0.630 V, TA = 25°C
0.002
0.2
A
LDO OUTPUT
VVREG
LDO output voltage
0 mA
≤ IVREG ≤ 30 mA
4.77
5.0
5.35
V
IVREG
LDO output current(1)
Maximum current allowed from LDO
30
mA
VDO
LDO drop out voltage
VDD = 4.5 V, IVREG = 30 mA
295
mV
BOOT STRAP SWITCH
VFBST
Forward voltage
VVREG-VBST, IF = 10 mA, TA = 25°C
0.1
0.2
V
IVBSTLK
VBST leakage current
VVBST = 23 V, VLL = 17 V, TA = 25°C
0.01
1.5
A
DUTY AND FREQUENCY CONTROL
tOFF(min)
Minimum off time
TA = 25°C
150
260
400
ns
VVIN = 17 V, VOUT = 0.6 V, RRF = 0 Ω to VREG,
tON(min)
Minimum on time
35
TA = 25°C
(1)
SOFTSTART
RMODE = 39 kΩ
0.7
RMODE = 100 kΩ
1.4
Internal SS time from VOUT = 0 to
tSS
ms
VOUT = 95%
RMODE = 200 kΩ
2.8
RMODE = 470 kΩ
5.6
POWERGOOD
PG in from lower
92.5%
96%
98.5%
VTHPG
PG threshold
PG in from higher
107.5%
110%
112.5%
PG hysteresis
2.5%
5%
7.8%
RPG
PG transistor on-resistance
15
30
55
Ω
tPGDEL
PG Delay after soft-start
0.8
1
1.2
ms
(1)
Ensured by design. Not production tested.
4
Copyright
2011, Texas Instruments Incorporated
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