ISL6271A Datasheet, PDF (3/16 Pages) Intersil Corporation – Integrated XScale Regulator

ISL6271A
Absolute Maximum Ratings
(PVCC, VCC, LVCC) to GND. . . . . . . . . . . . . . . . . . . . . . . . . . . . .7V
PHASE to PGND . . . . . . . . . . . . . . . . . . . . . .-0.3V to (PVCC +0.3V)
PGND to GND . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.3V to 0.3V
All other pins to GND . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.3V to 7V
ESD Rating
Human Body Model (Per MIL-STD-883 Method 3015.7) . . . . .2kV
Thermal Information
Thermal Resistance. . . . . . . . . . . . . . . . . θ_JA (°C/W) θ_JC (°C/W)
4x4 QFN Package (Notes 1, 2) . . . .
45
7.5
Maximum Junction Temperature (Plastic Package) . . . . . . . . 150°C
Maximum Storage Temperature Range . . . . . . . . . . . -65°C to 150°C
Maximum Lead Temperature (Soldering 10s) . . . . . . . . . . . . . 300°C
Recommended Operating Conditions
Ambient Temperature Range . . . . . . . . . . . . . . . . . . . .-25°C to 85°C
Supply Voltage (PVCC, VCC) . . . . . . . . . . . . . . . . . . . . 2.76 to 5.5V
Supply Voltage (LVCC) . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.7 - 5.5V
CAUTION: Stresses above those listed in “Absolute Maximum Ratings” may cause permanent damage to the device. This is a stress only rating and operation of the
device at these or any other conditions above those indicated in the operational sections of this specification is not implied.
NOTES:
1. θ_JA is measured in free air with the component mounted on a high effective thermal conductivity test board with “direct attach” features (TB379).
2. For θ_JC, the “case temp” location is the center of the exposed metal pad on the package underside.
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
SYMBOL
TEST CONDITIONS
MIN TYP MAX UNITS
CORE BUCK REGULATOR
Input Voltage Range
(After V_CC reaches Rising V_POR)
Output Voltage Nominal Range
PV_CC
PV_CC = V_CC
2.76
VOUT Programmable in 50mV increments
0.85
5.5
V
1.60
V
Max. DC Output Current
Icore
(Note 3)
800
mA
Current Limit (DC plus Ripple)
Icore_lim (wafer level test only)
950 1300
mA
PMOS on Resistance
NMOS on Resistance
Frequency (Note 4)
r_DS(ON)p
r_DS(ON)n
f
Iout = 200mA
Iout = 200mA
Vin = 3.7V, Vo = 1.0V, VF6 = 0.9V
275
mΩ
140
mΩ
1.2
MHz
Load Regulation
VOUT = 1.6V; Io = 1mA-500mA
.05
1
%
Line Regulation
Over VCC range
1
%
VOUT Pk-Pk Ripple
V_P-P
Vout = 1.6V, I = 0.4A, CCM
Discontinous Mode Operation
5
mV
10
mV
System Accuracy
Over Temperature
Room Temperature
-1
2
%
-1
1
%
Under Voltage Threshold (Note 5)
Rising, as % of nominal VOUT
94
%
Falling, as % of nominal VOUT
86
%
Over Voltage threshold
Rising, as % of nominal VOUT
114
%
Falling, as % of nominal VOUT
106
%
Start-up Time
Ring Damping Switch Resistance
LINEAR REGULATORS
t_st
R_on(RD)
From Enable Active @ Io = 10mA; Vo = 1.6V
1.3
ms
50
75
Ω
Input Voltage
LVCC Connected to PVCC
2.76
5.5
V
Not connected to PVCC
1.70
3.5
V
Output Voltage
VSRAM
1.1
V
VPLL
1.3
V
3
FN9171.1