ISL6271A Datasheet, PDF (4/16 Pages) Intersil Corporation – Integrated XScale Regulator

ISL6271A
Electrical Specifications
PARAMETER
Operating Conditions, Unless Otherwise Noted; T_A = -25°C to 85°C, PVCC = VCC = 3.7V. Component values
as shown in Figure 19, Typical Application Circuit: Vout = 1.6V, I_OUT = 0mA (Continued)
SYMBOL
TEST CONDITIONS
MIN TYP MAX UNITS
Output Tolerance
Iout = 1mA
-2.5
2.5
%
Maximum Average Output Current
I_SRAM
50
mA
I_PLL
40
mA
Current Limit
I_{ldo_lim} Each LDO regulator
120
300
%
(Note 7)
Line Regulation
LVCC = 1.7-5.5V
0.25
%
Load Regulation
Io = 1 to 25mA
.5
%
Undervoltage Threshold
Rising - % of VPLL, VSRAM
91
%
Falling - % of VPLL, VSRAM
86
%
Start-Up Time
SYSTEM
tst
Soft-start power up to 1.3V, Csoft = 10nF
1.3
ms
Supply Current (VCC)
Supply Current (LVCC)
EN Voltage
Soft-Start Source Current
(Controlled by I²C control bits D5, D4)
Temperature Shutdown
POR/BFLT# Threshold (Note 6)
PGOOD Pull Down Resistance
VIDEN, VID2, VID3 Voltage Threshold
I²C LOGIC
I_Q
I_Q
I_LVCC
V_IH
V_IL
I₀₀
I₀₁
I₁₀
I₁₁
T_r
T_f
V_POR
V_POR
R_on
V_IH(VID)
V_IL(VID)
I_core = No load
EN = 0V
Rising T
Falling T
Rising VCC
Falling VCC
380
µA
2
5
µA
25
µA
2.0
V
0.55
V
3.4
4.8
6.2
µA
6.7
9.6
12.5
µA
16
24
32
µA
30
47
64
µA
130
140
150
°C
85
95
105
°C
2.60 2.80
3.0
V
2.44 2.60 2.76
V
700
960
Ω
2.4
V
1.0
V
SCL, SDA Voltage Threshold
V_IH(I2_C)
V_IL(I2_C)
SDA Pull Down Resistance
R_on(SDA)
NOTES:
3. Guaranteed by design; correlated with statistic data for PVCC = VCC from 3.5V to 5.5V.
4. Switching frequency is a function of input, output voltage and load.
5. As a result of an over-current condition exceeding 800mA. Will result in a PGOOD fault.
6. A high rising POR tracks with a high falling POR.
7. Percentage of Maximum Average Output Current (I_SRAM or I_PLL).
2.0
V
0.55
V
132
Ω
4
FN9171.1