isl9105 Intersil Corporation, isl9105 Datasheet - Page 2

• Manufacturer Part Number: isl9105
• Description: 600ma Low Quiescent Current 1.6mhz High Efficiency Synchronous Buck Regulator
• Manufacturer: Intersil Corporation

Absolute Maximum Ratings (Reference to GND)
Supply Voltage (VIN) . . . . . . . . . . . . . . . . . . . . . . . . . . -0.3V to 6.5V
EN, RSI, MODE, POR . . . . . . . . . . . . . . . . . . . . . -0.3V to VIN+0.3V
PHASE. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -1.5V to 6.5V
FB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.3V to 2.7V
Recommended Operating Conditions
VIN Supply Voltage Range . . . . . . . . . . . . . . . . . . . . . . 2.7V to 5.5V
Load Current Range . . . . . . . . . . . . . . . . . . . . . . . . . . . .0 to 600mA
Ambient Temperature Range . . . . . . . . . . . . . . . . . . .-40°C to +85°C
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.
NOTE:
Electrical Specifications
SUPPLY
VIN Under Voltage Lockout Threshold
Quiescent Supply Current
Shutdown Supply Current
OUTPUT REGULATION
FB Regulation Voltage
FB Bias Current
Output Voltage Accuracy
Line Regulation
Maximum Output Current
COMPENSATION
Error Amplifier Trans-Conductance
PHASE
P-Channel MOSFET On Resistance
N-Channel MOSFET On Resistance
P-Channel MOSFET Peak Current Limit
PHASE Maximum Duty Cycle
PWM Switching Frequency
PHASE Minimum On Time
Soft-Start-Up Time
POR
Output Low Voltage
Delay Time
POR Pin Leakage Current
1. θ
2. θ
Tech Brief TB379.
JA
JC
, “case temperature” location is at the center of the exposed metal pad on the package underside. See Tech Brief TB379.
is measured in free air with the component mounted on a high effective thermal conductivity test board with “direct attach” features. See
PARAMETER
2
Unless otherwise noted, all parameter limits are guaranteed over the recommended operating conditions and the
typical specification are measured at the following conditions: T
L = 3.3μH, C1 = 10μF, C2 = 10μF, I
SYMBOL
V
V
UVLO
I
I
I
I
VIN
SD
PK
FB
f
FB
S
Rising
Falling
MODE = V
MODE = GND, no load at the output
V
T
T
FB = 0.75V
V
V
Design info only
V
V
MODE = low (forced PWM mode)
Sinking 1mA, FB = 0.7V
POR = V
A
A
IN
IN
IN
IN
IN
= 0°C to +85°C
= -40°C to +85°C
= 5.5V, EN = low
= V
= V
= 3.6V, I
= 3.6V, I
ISL9105
O
O
IN
OUT
+ 0.5V to 5.5V, I
+ 0.5V to 5.5V (minimal 2.7V)
IN
= 3.6V
TEST CONDITIONS
O
O
, no load at the output
= 0A (see the Typical Application Circuit).
= 200mA
= 200mA
Thermal Information
Thermal Resistance (Typical, Notes 1, 2) θ
Junction Temperature Range. . . . . . . . . . . . . . . . . .-55°C to +125°C
Storage Temperature Range . . . . . . . . . . . . . . . . . .-65°C to +150°C
2x3 DFN Package . . . . . . . . . . . . . .
O
= 0mA to 600mA
A
= +25°C, V
0.784
IN
0.78
0.75
MIN
600
150
2.2
1.2
-3
-
-
-
-
-
-
-
-
-
-
-
-
-
-
= 3.6V, EN = V
TYP
0.16
0.14
0.01
100
216
2.5
2.4
0.1
0.8
0.8
0.1
0.2
1.0
1.6
1.1
25
20
5
-
-
-
-
JA
IN
(°C/W)
75
, RSI = MODE = 0V,
0.816
MAX
0.82
0.22
0.22
140
275
2.7
1.3
1.8
0.3
0.1
50
8
2
3
-
-
-
-
-
-
-
February 13, 2007
θ
JC
UNITS
μA/V
FN6415.1
MHz
(°C/W)
%/V
mA
mA
ms
ms
6
μA
μA
μA
μA
ns
%
%
V
V
V
Ω
Ω
A
V
V