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TLV751 bảng dữ liệu(PDF) 5 Page - Texas Instruments

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Giải thích chi tiết về linh kiện  TLV751 Dual, 500-mA, High-Accuracy, LDO in a Small-Size Package
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TLV751 bảng dữ liệu(HTML) 5 Page - Texas Instruments

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TLV751
www.ti.com
SBVS385B – DECEMBER 2019 – REVISED APRIL 2020
Product Folder Links: TLV751
Submit Documentation Feedback
Copyright © 2019–2020, Texas Instruments Incorporated
(1)
For more information about traditional and new thermalmetrics, see the Semiconductor and ICPackage Thermal Metrics application
report.
6.4 Thermal Information
THERMAL METRIC(1)
TLV751P
UNIT
DSQ (WSON)
10 PINS
RθJA
Junction-to-ambient thermal resistance
74.6
°C/W
RθJC(top)
Junction-to-case (top) thermal resistance
90.5
°C/W
RθJB
Junction-to-board thermal resistance
39.7
°C/W
ψJT
Junction-to-top characterization parameter
3.8
°C/W
ψJB
Junction-to-board characterization parameter
39.7
°C/W
RθJC(bot)
Junction-to-case (bottom) thermal resistance
17
°C/W
(1)
When the device is connected to external feedback resistors at the FB pin, external resistor tolerances are not included.
(2)
VIN = 1.5 V for VOUT < 1.0 V.
(3)
VIN = 2.0 V for VOUT < 1.5 V.
6.5 Electrical Characteristics
At operating temperature range (TJ = –40°C to +125°C),VIN = VOUT(NOM) + 0.5 V or 1.5 V (whichever isgreater), IOUT = 1 mA,
VEN =VIN, and CIN = COUT = 1 uF(unless otherwise noted); all typical values are at TJ = 25°C
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
VFB
Feedback voltage
TJ = 25°C
0.55
V
Output accuracy(1)
TJ = 25°C
–0.5%
0.5%
–40°C
≤ TJ ≤ +125°C; VOUT(NOM) + 0.5 V
(2) ≤ V
IN ≤ 6.0 V
–1.5%
1.5%
Line regulation
VOUT(NOM) + 0.5 V
(2) ≤ V
IN ≤ 6.0 V
2
mV
Load regulation
0.1 mA
≤ IOUT ≤ 500 mA, VIN = VOUT + 0.5 V
(3)
0.030
V/A
IGND
Ground current
IOUT = 0 mA
TJ = 25°C
10
25
31
µA
–40°C
≤ TJ ≤ +125°C
35
µA
ISHDN
Shutdown current
VEN ≤ 0.3 V, 1.5 V ≤ VIN ≤ 6.0 V
0.1
1
µA
IFB
Feedback pin current
0.01
0.1
µA
ICL
Output current limit
VIN = 2 V with VOUT < 1 V;
otherwise VIN = VOUT(NOM) + 1.0 V
VOUT = VOUT(NOM) – 0.2 V,
VOUT < 1.5 V
530
720
865
mA
VOUT = 0.9 V × VOUT(NOM),
VOUT ≥ 1.5 V
530
720
865
ISC
Short-circuit current limit
VIN = 2 V with VOUT < 1 V;
otherwise VIN = VOUT(NOM) + 1.0 V
VOUT = 0 V
310
400
mA
VDO
Dropout voltage
IOUT = 500 mA,
–40°C
≤ TJ ≤ +125°C,
VOUT = 0.95 × VOUT(NOM)
0.65 V
≤ VOUT < 0.8 V
720
880
mV
0.8 V
≤ VOUT < 1.0 V
585
750
1.0 V
≤ VOUT < 1.2 V
420
570
1.2 V
≤ VOUT < 1.5 V
285
400
1.5 V
≤ VOUT < 1.8 V
180
240
1.8 V
≤ VOUT < 2.5 V
140
190
2.5 V
≤ VOUT < 3.3 V
102
140
3.3 V
≤ VOUT ≤ 5.5 V
95
130
PSRR
Power-supply rejection ratio
VIN = VOUT(NOM) + 1.0 V,
IOUT = 50 mA
f = 1 kHz
50
dB
f = 100 kHz
45
f = 1 MHz
30
Vn
Output noise voltage
BW = 10 Hz to 100 kHz, VOUT = 0.9 V
53
µVRMS
VUVLO
Undervoltage lockout
VIN rising
1.21
1.33
1.47
V
VIN falling
1.17
1.29
1.42
V
VUVLO,
HYST
Undervoltage lockout hysteresis
VIN hysteresis
45
mV
tSTR
Startup time
From EN low-to-high transition to VOUT = VOUT(NOM) × 95%
500
700
µs
VEN(HI)
EN pin high voltage
1.0
V
VEN(LO)
EN pin low voltage
0.3
V
IEN
Enable pin current
VIN = EN = 6.0 V
10
nA


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