參數(shù)資料
型號: ISL6271A
廠商: Intersil Corporation
英文描述: Integrated XScale Regulator
中文描述: 綜合Xscale的調(diào)節(jié)
文件頁數(shù): 5/16頁
文件大小: 588K
代理商: ISL6271A
5
FN9171.1
Typical Operating Performance
Test results from the Intersil ISL6271A Customer Reference Board (CRB). Output filter on switcher made up of a 4.7μH drumcore with 100m
of
DCR and an output capacitance of 10μF. X5R; Rcomp = 50k
, Vin = 3.6V unless otherwise noted.
FIGURE 3. EFFICIENCY (Vin = 3.6V)
FIGURE 4. VSRAM LINE-LOAD REGULATION
FIGURE 5. SWITCHING REGULATOR EFFICIENCY
50mA to 260mA load step on VOUT.
Top: Output voltage, 50mV/DIV; Phase node, 5V/DIV.;
Inductor current, 200mA/DIV, 2μs/DIV
FIGURE 6. DCM TO CCM
Top: phase node output voltage ripple, 10mV/DIV.
Bottom: Inductor current, 100mA/DIV, 1μs/DIV
FIGURE 7. CCM TO CCM
60%
65%
70%
75%
80%
85%
90%
95%
100%
0
200
400
600
800
Io (mA)
Vo=1.6V
Vo=1.3V
1.085
1.086
1.087
1.088
1.089
1.09
1.091
1.092
1.093
1.094
1.7
2.5
3.5
INPUT VOLTAGE
O
Iout = 85mA
Io = 10mA
Io = 25mA
Iout = 55mA
1.301
1.302
1.303
1.304
1.305
1.306
1.307
1.308
1.309
1.7
2.5
3.5
INPUT VOLTAGE
O
Iout = 65mA
Io = 5mA
Io = 20mA
Iout = 55mA
VOUT
IOUT
PHASE
ISL6271A
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