ISL6271ACRZ-T Intersil, ISL6271ACRZ-T Datasheet - Page 5

• Manufacturer Part Number: ISL6271ACRZ-T
• Description: IC PMIC XSCALE REG 20-QFN
• Manufacturer: Intersil

Specifications of ISL6271ACRZ-T

• Applications: Processor
• Current - Supply: 380µA
• Voltage - Supply: 2.76 V ~ 5.5 V
• Operating Temperature: -25°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 20-QFN
• Rohs Compliant: Yes
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: ISL6271ACRZ-TTR

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 100mΩ of
DCR and an output capacitance of 10µF. X5R; Rcomp = 50kΩ, Vin = 3.6V unless otherwise noted.
1.094
1.093
1.092
1.091
1.089
1.088
1.087
1.086
1.085
1.09
PHASE
Top: Output voltage, 50mV/DIV; Phase node, 5V/DIV.;
FIGURE 4. VSRAM LINE-LOAD REGULATION
1.7
Inductor current, 200mA/DIV, 2µs/DIV
50mA to 260mA load step on VOUT.
FIGURE 6. DCM TO CCM
INPUT VOLTAGE
5
2.5
VOUT
IOUT
100%
95%
90%
85%
80%
75%
70%
65%
60%
Io = 10mA
Io = 25mA
Iout = 55mA
Iout = 85mA
0
FIGURE 3. EFFICIENCY (Vin = 3.6V)
3.5
200
Vo=1.6V
Vo=1.3V
ISL6271A
Io (mA)
400
1.309
1.308
1.307
1.306
1.305
1.304
1.303
1.302
1.301
FIGURE 5. SWITCHING REGULATOR EFFICIENCY
Top: phase node output voltage ripple, 10mV/DIV.
Bottom: Inductor current, 100mA/DIV, 1µs/DIV
600
1.7
FIGURE 7. CCM TO CCM
800
INPUT VOLTAGE
2.5
Io = 20mA
Iout = 55mA
Iout = 65mA
Io = 5mA
3.5
FN9171.1