參數(shù)資料
型號: TPS54611-Q1
廠商: Texas Instruments, Inc.
英文描述: 3-V TO 6-V INPUT, 6-A OUTPUT SYNCHRONOUS BUCK PWM SWITCHER WITH INTEGRATED FETs(SWIFT)
中文描述: 3 - V至6 V輸入,6 - A輸出同步降壓PWM開關(guān)帶有集成FET協(xié)會(SWIFT)
文件頁數(shù): 6/18頁
文件大?。?/td> 246K
代理商: TPS54611-Q1
SGLS266D OCTOBER 2004 REVISED DECEMBER 2004
www.ti.com
6
ELECTRICAL CHARACTERISTICS (CONTINUED)
TJ = –40
°
C to 125
°
C, VI = 3 V to 6 V (unless otherwise noted)
PARAMETER
OSCILLATOR
TEST CONDITIONS
MIN
TYP
MAX
UNIT
Internally set—free running frequency
FSEL
0.8 V, RT open
FSEL
2.5 V, RT open
RT = 180 k
(1% resistor to AGND)(1)
RT = 160 k
(1% resistor to AGND)
RT = 68 k
(1% resistor to AGND)(1)
265
350
440
kHz
415
550
680
Externally set—free running
frequency range
252
280
308
290
312
350
kHz
663
700
762
High level threshold, FSEL
2.5
V
Low level threshold, FSEL
Pulse duration, FSEL(1)
Frequency range, FSEL(1) (4)
Ramp valley(1)
Ramp amplitude (peak-to-peak)(1)
Minimum controllable on time(1)
Maximum duty cycle(1)
(1)Specified by design
(2)Static resistive loads only
(3)Tested using circuit in Figure 10.
(4)To ensure proper operation when RC filter is used between external clock and FSEL pin, the recommended values are R
1k
and
C
120 pF.
0.8
V
50
ns
330
700
kHz
0.75
V
1
V
200
ns
90%
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