參數(shù)資料
型號(hào): ISL88550AIRZ
廠商: INTERSIL CORP
元件分類(lèi): 穩(wěn)壓器
英文描述: Synchronous Step Down Controller with Sourcing and Sinking LDO Regulator
中文描述: SWITCHING CONTROLLER, 600 kHz SWITCHING FREQ-MAX, PQCC28
封裝: 5 X 5 MM, ROHS COMPLIANT, PLASTIC, MO-220WHHD-1, TQFN-28
文件頁(yè)數(shù): 9/25頁(yè)
文件大?。?/td> 928K
代理商: ISL88550AIRZ
9
FN6168.0
October 12, 2005
FIGURE 9. VTTR REGULATION vs VTTR LOAD
FIGURE 10. LOAD TRANSIENT (VDDQ)
FIGURE 11. LOAD TRANSIENT (VTT -1.5A TO 1.5A)
FIGURE 12. POWER-UP WAVEFORMS
FIGURE 13. POWER-DOWN WAVEFORMS
FIGURE 14. VDDQ STARTUP AND SHUTDOWN INTO HEAVY
LOAD, DISCHARGE DISABLED
Typical Operating Characteristics
(Continued)
VIN = 12V, VDDQ = 1.8V, TON = GND, SKIP# = AVDD, circuit of Figure 28, T
A
= 25°C, unless otherwise noted.
0.85
0.86
0.87
0.88
0.89
0.90
0.91
0.92
0.93
0.94
0.95
LOAD (A)
V
-0.04
-0.03
-0.02
-0.01
0
0.01
0.02
0.03
0.04
VDDQ
100mV/DIV
VTT
100mV/DIV
VTTR
100mV/DIV
IVDDQ
10A/DIV
20μs/DIV
I
VTT
=1.5A, I
VTTR
=15mA
10A
0A
I
VDDQ
=12A, I
VTTR
=15mA
20μs/DIV
VDDQ
100mV/DIV
VTT
100mV/DIV
VTTR
100mV/DIV
IVTT
2A/DIV
100μs/DIV
VDDQ
1V/DIV
VTT
1V/DIV
VTTR
1V/DIV
VIN
10V/DIV
V
DD
=5V, I
VDDQ
=12A, I
VTT
=1.5A, IVTTR=15mA
100μs/DIV
VDDQ
1V/DIV
VTT
1V/DIV
VTTR
1V/DIV
VIN
10V/DIV
V
DD
=5V, I
VDDQ
=12A, I
VTT
=1.5A, IVTTR=15mA
1ms/DIV
VDDQ
1V/DIV
VTT
500mV/DIV
POK1
5V/DIV
SHDNA#
5V/DIV
I
VDDQ
=12A, I
VTT
=1.5A
ISL88550A
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