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參數資料
| 型號： | TPS51200DRCT |
| 廠商： | TEXAS INSTRUMENTS INC |
| 元件分類： | 模擬信號調理 |
| 英文描述： | SPECIALTY ANALOG CIRCUIT, PDSO10 |
| 封裝： | GREEN, PLASTIC, VSON-10 |
| 文件頁數： | 23/35頁 |
| 文件大小： | 1131K |
| 代理商： | TPS51200DRCT |
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ELECTRICAL CHARACTERISTICS
SLUS812 – FEBRUARY 2008
Over recommended free-air temperature range, VVIN = 3.3 V,VVLDOIN = 1.8 V, VREFIN = 0.9 V, VVOSNS = 0.9 V, VEN = VVIN, COUT
= 3
× 10 F and circuit shown in Section 1. (unless otherwise noted)
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
SUPPLY CURRENT
IIN
Supply current
TA = 25 °C, VEN = 3.3 V, No Load
0.7
1
mA
TA = 25 °C, VEN = 0 V, VREFIN = 0, No Load
65
80
IIN(SDN)
Shutdown current
A
TA = 25 °C, VEN = 0 V, VREFIN > 0.4 V, No Load
200
400
ILDOIN
Supply current ofVLDOIN
TA = 25 °C, VEN = 3.3 V, No Load
1
50
A
ILDOIN(SDN)
Shutdown current of VLDOIN
TA = 25 °C, VEN = 0 V, No Load
0.1
50
A
INPUT CURRENT
IREFIN
Input current, REFIN
VEN = 3.3 V
1
A
VO OUTPUT
1.25
V
VREFOUT = 1.25 V (DDR1), IO = 0 A
–15
15
mV
0.9
V
VVOSNS
Output DC voltage, VO
VREFOUT = 0.9 V (DDR2), IO = 0 A
–15
15
mV
0.75
V
VLDOIN = 1.5 V, VREFOUT = 0.75 V (DDR3), IO = 0 A
–15
15
mV
Output voltage tolerance to
VVOTOL
–2A < IVO < 2A
–25
25
mV
REFOUT
IVOSRCL
VO source vurrent Limit
With reference to REFOUT, VOSNS = 90% × VREFOUT
3
4.5
A
IVOSNCL
VO sink current Limit
With reference to REFOUT, VOSNS = 110% × VREFOUT
3.5
5.5
A
IDSCHRG
Discharge current, VO
VREFIN = 0 V, VVO = 0.3 V, VEN = 0 V, TA = 25°C
18
25
POWERGOOD COMPARATOR
PGOOD window lower threshold with respect to REFOUT
–23.5%
–20%
–17.5%
VTH(PG)
VO PGOOD threshold
PGOOD window upper threshold with respect to REFOUT
17.5%
20%
23.5%
PGOOD hysteresis
5%
TPGSTUPDLY
PGOOD startup delay
Startup rising edge, VOSNS within 15% of REFOUT
2
ms
VPGOODLOW
Output low voltage
ISINK = 4 mA
0.4
V
TPBADDLY
PGOOD bad delay
VOSNS is outside of the ±20% PGOOD window
10
s
VOSNS = VREFIN (PGOOD high impedance),
IPGOODLK
Leakage current(1)
1
A
PGOOD = VIN + 0.2 V
REFIN AND REFOUT
VREFIN
REFIN voltage range
0.5
1.8
V
VREFINUVLO
REFIN undervoltage lockout
REFIN rising
360
390
420
mV
REFIN undervoltage lockout
VREFINUVHYS
20
mV
hysteresis
VREFOUT
REFOUT voltage
REFIN
V
–10 mA < IREFOUT < 10 mA, VREFIN = 1.25 V
–15
15
–10 mA < IREFOUT < 10 mA, VVREFIN = 0.9 V
–15
15
mV
REFOUT voltage tolerance to
VREFOUTTOL
VREFIN
–10 mA < IREFOUT < 10 mA, VREFIN = 0.75V
–15
15
–10 mA < IREFOUT < 10 mA, VREFIN = 0.6 V
–15
15
IREFOUTSRCL
REFOUT source current limit
VREFOUT = 0 V
10
40
mA
IREFOUTSNCL
REFOUT sink current limit
VREFOUT = 0 V
10
40
mA
(1)
Ensured by design. Not production tested.
Copyright 2008, Texas Instruments Incorporated
3
Product Folder Link(s): TPS51200
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