参数资料
型号: ISL6271ACRZ-T
厂商: Intersil
文件页数: 6/16页
文件大小: 0K
描述: IC PMIC XSCALE REG 20-QFN
标准包装: 1
应用: 处理器
电流 - 电源: 380µA
电源电压: 2.76 V ~ 5.5 V
工作温度: -25°C ~ 85°C
安装类型: 表面贴装
封装/外壳: 20-VFQFN 裸露焊盘
供应商设备封装: 20-QFN 裸露焊盘(4x4)
包装: 标准包装
产品目录页面: 1248 (CN2011-ZH PDF)
其它名称: ISL6271ACRZ-TDKR
ISL6271A
Typical Operating Performance
(Continued)
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.
VOUT
DATA
CL K
I 2 C Vout = 0.85 to 1.6V 5mV/μs, 40μs/DIV
FIGURE 8. TYPICAL I 2 C COMMUNICATION
Ripple in DCM: Fripple = 145kHz, Vin = 2.85V, Vout = 0.85V,
Iout = 10mA Ripple = 10mV (worst case), 1μs/DIV
FIGURE 10. PHASE NODE TO DCM
OUTPUT VOLTAGE RIPPLE
Ripple in CCM Vin = 2.85V, Vo = 0.850V, Fripple = 1MHz,
Io = 500mA, Ripple = 4.2mV, 400ns/DIV
FIGURE 12. RIPPLE IN CCM
6
Top: phase node output voltage ripple, 10mV/DIV
Bottom: Inductor current, 100mA/DIV, 1μs/DIV
FIGURE 9. RIPPLE IN DCM
VSRAM, 20mV/DIV
LOAD STEP TRIGGER
LDO transient response with 3.3μF output capacitance.
LVCC = 4.1V. 10mA DC load+ 55mA step load.
FIGURE 11. LDO TRANSIENT RESPONSE
EN PIN
VOUT
SOFT PIN
Soft-start into CCM, VIN = 4.2V, CH3 = EN pin. Vout = 0.85
Soft-Start capacitor = 10nF. 200μs/DIV
FIGURE 13. SOFT-START INTO CCM
FN9171.1
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