参数资料
型号: TPS54110PWP
厂商: TEXAS INSTRUMENTS INC
元件分类: 稳压器
英文描述: 3.5 A SWITCHING REGULATOR, 762 kHz SWITCHING FREQ-MAX, PDSO20
封装: GREEN, PLASTIC, HTSSOP-20
文件页数: 23/30页
文件大小: 870K
代理商: TPS54110PWP
SLVS500C
– DECEMBER 2003 – REVISED FEBRUARY 2011
ELECTRICAL CHARACTERISTICS
TJ = –40°C to 125°C, VIN = 3 V to 6 V (unless otherwise noted)
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
SUPPLY VOLTAGE, VIN
VIN input voltage range
3
6
V
fs = 350 kHz, SYNC ≤ 0.8 V, RT open
4.5
8.5
fs = 550 kHz, Phase pin open,
Quiescent current
5.8
9.6
mA
SYNC
≥ 2.5 V, RT open,
Shutdown, SS/ENA = 0 V
1
1.4
UNDER VOLTAGE LOCK OUT
Start threshold voltage, UVLO
2.95
3
V
Stop threshold voltage, UVLO
2.70
2.80
Hysteresis voltage, UVLO
0.12
V
Rising and falling edge deglitch,
2.5
s
UVLO(1)
BIAS VOLTAGE
Output voltage, VBIAS
I(VBIAS) = 0
2.70
2.80
2.90
V
VO
Output current, VBIAS(2)
100
A
CUMULATIVE REFERENCE
Vref
Accuracy
0.882
0.891
0.900
V
REGULATION
IL = 0.75 A,
fs = 350 kHz,
TJ = 85°C
0.05
Line regulation(1)(3)
%/V
IL = 0.75 A,
fs = 550 kHz,
TJ = 85°C
0.05
IL = 0 A to 1.5 A, fs = 350 kHz,
TJ = 85°C
0.01
Load regulation(1)(3)
%/A
IL = 0 A to 1.5 A
fs = 550 kHz,
TJ = 85°C
0.01
OSCILLATOR
SYNC
≤ 0.8 V,
RT open
280
350
420
Internally set free-running
kHz
frequency range
SYNC
≥ 2.5 V,
RT open
440
550
660
RT = 180 k
Ω (1% resistor to AGND)(1)
252
280
308
Externally set free-running
RT = 100 k
Ω (1% resistor to AGND)
460
500
540
kHz
frequency range
RT = 68 k
Ω (1% resistor to AGND)(1)
663
700
762
High-level threshold voltage,
2.5
V
SYNC
Low-level threshold voltage,
0.8
V
SYNC
Pulse duration, SYNC(1)
50
ns
Frequency range, SYNC(1)
330
700
kHz
Ramp valley(1)
0.75
V
Ramp amplitude (peak-to-peak)(1)
1
V
Minimum controllable on time(1)
200
ns
Maximum duty cycle
90
%
(1)
Specified by design
(2)
Static resistive loads only
(3)
Specified by the circuit used in Figure 9.
2003–2011, Texas Instruments Incorporated
3
Product Folder Link(s): TPS54110
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