参数资料
型号: TPS54900PWG4
厂商: Texas Instruments
文件页数: 2/16页
文件大小: 0K
描述: IC REG BUCK ADJ .1A QUAD 16TSSOP
标准包装: 90
类型: 降压(降压)
输出类型: 可调式
输出数: 4
输出电压: 7.5 V ~ 13.1 V
输入电压: 15V
PWM 型: 电压模式
频率 - 开关: 450kHz
电流 - 输出: 100mA
同步整流器:
工作温度: -40°C ~ 85°C
安装类型: 表面贴装
封装/外壳: 16-TSSOP(0.173",4.40mm 宽)
包装: 管件
供应商设备封装: 16-TSSOP
配用: 296-17304-ND - EVAL MODULE FOR XILINX FPGA
TPS54900
SLVS405 ? OCTOBER 2001
absolute maximum ratings over operating free-air temperature (unless otherwise noted) ?
Supply voltage range ? , VIN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ?0.3 V to 18 V
Input voltage range ? , EN, CBS, FB0, FB1, FB2, FB3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ?0.3 V to VIN + 0.3 V
Input voltage range ? , SCLK, SDI, SFS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ?0.3 V to 5 V
Output voltage range?, LX0, LX1, LX2, LX3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ?0.5 V to VIN + 0.3 V
Output voltage range ? , SDO . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ?0.3 V to 5 V
Continuous power dissipation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . See Dissipation Rating Table
Operating junction temperature, T J . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ?40 ° C to 125 ° C
Storage temperature range, T stg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ?55 ° C to 150 ° C
Lead soldering temperature, 10 seconds . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 300 ° C
? Stresses beyond those listed under “absolute maximum ratings” may cause permanent damage to the device. These are stress ratings only, and
functional operation of the device at these or any other conditions beyond those indicated under “recommended operating conditions” is not
implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.
? All voltages values are with respect to device GND terminal.
DISSIPATION RATING TABLE?FREE-AIR TEMPERATURES§
PACKAGE
PW
AIR FLOW
(CFM)
0
TA ≤ 25 ° C
POWER RATING
500 mW
DERATING FACTOR
ABOVE TA = 25 ° C
5 mW/ ° C
TA = 70 ° C
POWER RATING
275 mW
TA = 85 ° C
POWER RATING
200 mW
§ Low-K PWB
recommended operating conditions (unless otherwise noted)
MIN
NOM
MAX
UNITS
Supply voltage, VIN
Output current, LX0, LX1, LX2, LX3
Synchronized PWM frequency (see Note 1)
Inductor
Output capacitor
Operating junction temperature, TJ
14.25
20
200
?40
15
552
225
10
16
100
250
125
V
mA
kHz
μ H
μ F
° C
NOTE 1: Synchronized PWM frequency equal to one eighth of SCLK frequency.
electrical characteristics over recommended operating conditions (unless otherwise noted)
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
SUPPLY CURRENT
I(qq)
I(q)
VI disable current
VI quiescent current
EN > VIH, all outputs software disabled
EN pin < VIL
1.7
0.7
2.16
1
mA
mA
CUMULATIVE REGULATION
Voltage codes 12.3 V, 12.7 V, 13.1 V
?2%
2%
Regulation accuracy
Voltage codes < 12.3 V
?2.5%
2.5%
OSCILLATOR
f(osc)
Free-run frequency
350
450
550
kHz
f(sync)
Sync frequency range
Phase stagger count
f(sync) = SCLK / 8
Phase difference after initialization command
(see Note 2)
550
4
750
kHz
SCLK
UVLO
V(UVLO)
Undervoltage lockout threshold
13
13.5
V
Vhys(UVLO)
UVLO hysteresis
1.3
1.45
1.6
V
NOTE 2: Ensured by design
2
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