Buck Regulator. ISL9106IRZ Datasheet

ISL9106IRZ Regulator. Datasheet pdf. Equivalent

ISL9106IRZ Datasheet
Recommendation ISL9106IRZ Datasheet
Part ISL9106IRZ
Description 1.2A 1.6MHz Low Quiescent Current High Efficiency Synchronous Buck Regulator
Feature ISL9106IRZ; DATASHEET ISL9106 1.2A 1.6MHz Low Quiescent Current High Efficiency Synchronous Buck Regulator FN6.
Manufacture Renesas
Datasheet
Download ISL9106IRZ Datasheet




Renesas ISL9106IRZ
DATASHEET
ISL9106
1.2A 1.6MHz Low Quiescent Current High Efficiency Synchronous Buck Regulator
FN6509
Rev 0.00
June 29, 2007
ISL9106 is a 1.2A, 1.6MHz step-down regulator, which is
ideal for powering low-voltage microprocessors in compact
devices such as PDAs and cellular phones. It is optimized
for generating low output voltages down to 0.8V. The supply
voltage range is from 2.7V to 5.5V allowing the use of a
single Li+ cell, three NiMH cells or a regulated 5V input.
1.6MHz pulse-width modulation (PWM) switching frequency
allows using small external components. It has flexible
operation mode selection of forced PWM mode and Skip
(Low IQ) mode with typical 17A quiescent current for
highest light load efficiency to maximize battery life.
The ISL9106 integrates a pair of low ON-resistance
P-Channel and N-Channel MOSFETs to maximize efficiency
and minimize external component count.
The ISL9106 offers a typical 215ms Power-Good (PG) timer
when powered up. The timer output can be reset by RSI.
When shutdown, ISL9106 discharges the output capacitor.
Other features include internal digital soft-start, enable for
power sequence, overcurrent protection, and thermal
shutdown.
The ISL9106 is offered in 10 Ld 3mmx3mm DFN package
with 0.9mm typical height. The complete converter can
occupy less than 1cm2 area.
Ordering Information
PART
NUMBER
(Note)
TEMP.
PART RANGE
MARKING (°C)
PACKAGE
(Pb-free)
PKG.
DWG. #
ISL9106IRZ 106Z
-40 to +85 10 Ld 3x3 DFN L10.3x3C
ISL9106IRZ-T 106Z
-40 to +85 10 Ld 3x3 DFN L10.3x3C
NOTE: Intersil Pb-free plus anneal products employ special Pb-free
material sets; molding compounds/die attach materials and 100%
matte tin plate termination finish, which are RoHS compliant and
compatible with both SnPb and Pb-free soldering operations. Intersil
Pb-free products are MSL classified at Pb-free peak reflow
temperatures that meet or exceed the Pb-free requirements of
IPC/JEDEC J STD-020.
Features
• High Efficiency Integrated Synchronous Buck Regulator
with up to 95% Efficiency
• 2.7V to 5.5V Supply Voltage
• 17A Quiescent Supply Current in Skip (Low IQ) Mode
• 1.2A Guaranteed Output Current
• 3% Output Accuracy Over Temperature/Load/Line
• Selectable Forced PWM Mode and Skip Mode
• Less than 1A Logic Controlled Shutdown Current
• 100% Maximum Duty Cycle for Lowest Dropout
• Discharge Output Cap when Shutdown
• Internal Digital Soft-Start
• Peak Current Limiting, Short Circuit Protection
• Over-Temperature Protection
• Enable, Power Good Function
• 10 Ld 3mmx3mm DFN
• Pb-Free Plus Anneal Available (RoHS Compliant)
Applications
• Single Li-Ion Battery-Powered Equipment
• DSP Core Power
• PDAs and Palmtops
Pinout
ISL9106
(10 LD 3X3 DFN)
TOP VIEW
VIN 1
NC 2
EN 3
PG 4
MODE 5
10 SW
9 PGND
8 SGND
7 FB
6 RSI
FN6509 Rev 0.00
June 29, 2007
Page 1 of 13



Renesas ISL9106IRZ
ISL9106
Absolute Maximum Ratings (Reference to SGND)
VIN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.3V to 6.5V
EN, RSI, MODE, PG . . . . . . . . . . . . . . . . . . . . . -0.3V to VIN + 0.3V
SW . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -1.5V to 6.5V
FB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.3V to 2.7V
PGND. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.3V to 0.3V
Recommended Operating Conditions
VIN Supply Voltage Range . . . . . . . . . . . . . . . . . . . . . . 2.7V to 5.5V
Load Current . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0A to 1.2A
Ambient Temperature Range . . . . . . . . . . . . . . . . . . .-40°C to +85°C
Thermal Information
Thermal Resistance (Notes 1, 2)
JA (°C/W) JC (°C/W)
3x3 DFN Package . . . . . . . . . . . . . .
44
5.5
Junction Temperature Range. . . . . . . . . . . . . . . . . .-40°C to +125°C
Storage Temperature Range . . . . . . . . . . . . . . . . . .-65°C to +150°C
Pb-free reflow profile . . . . . . . . . . . . . . . . . . . . . . . . . .see link below
http://www.intersil.com/pbfree/Pb-FreeReflow.asp
CAUTION: Do not operate at or near the maximum ratings listed for extended periods of time. Exposure to such conditions may adversely impact product reliability and
result in failures not covered by warranty.
NOTES:
1. JA is measured in free air with the component mounted on a high effective thermal conductivity test board with “direct attach” features. See
Tech Brief TB379.
2. JC, “case temperature” location is at the center of the exposed metal pad on the package underside. See Tech Brief TB379.
Electrical Specifications
PARAMETER
Unless otherwise noted, all parameter limits are guaranteed over the recommended operating conditions and
the typical specifications are measured at the following conditions: TA = +25°C, VIN = VEN = VMODE = 3.6V,
VRSI = 0V, L = 2.2µH, C1 = 10µF, C2 = 10µF, IOUT = 0A (see the Typical Application Circuit).
SYMBOL
TEST CONDITIONS
MIN
TYP
MAX UNITS
SUPPLY
Undervoltage Lockout Threshold
VUVLO Rising
Falling
-
2.5
2.7
V
2.2
2.4
-
V
Quiescent Supply Current
IVIN MODE = VIN, no load at the output
MODE = SGND, no load at the output
-
17
34
µA
-
5
8
mA
Shut Down Supply Current
OUTPUT REGULATION
ISD VIN = 5.5V, EN = LOW
-
0.05
2
A
FB Regulation Voltage
FB Bias Current
Output Voltage Accuracy
Line Regulation
Maximum Output Current
VFB TA = 0°C to +85°C
TA = -40°C to +85°C
IFB VFB = 0.75V
VIN = VO + 0.5V to 5.5V, IO = 0A to 1.2A ,
TA = -40°C to +85°C
VIN = VO + 0.5V to 5.5V (minimal 2.7V)
0.784
0.8
0.816
V
0.78
0.8
0.82
V
-
0.1
-
µA
-3
-
3
%
-
0.2
-
%/V
1.2
-
-
A
COMPENSATION
Error Amplifier Trans-conductance
Design info only
-
20
-
µA/V
SW
P-Channel MOSFET ON-Resistance
N-Channel MOSFET ON-Resistance
N-Channel Bleeding MOSFET On Resistance
VIN = 3.6V, IO = 200mA
VIN = 2.7V, IO = 200mA
VIN = 3.6V, IO = 200mA
VIN = 2.7V, IO = 200mA
-
0.12 0.22
-
0.16 0.27
-
0.11
0.22
-
0.15 0.27
90
P-Channel MOSFET Peak Current Limit
Maximum Duty Cycle
IPK VIN = 5.5V
1.5
2.0
2.6
A
-
100
-
%
PWM Switching Frequency
SW Minimum On Time
fS
TA = -40°C to +85°C
MODE = LOW (forced PWM mode)
1.35
1.6
1.75
MHz
-
-
100
ns
Soft Start-Up Time
-
1.1
-
ms
FN6509 Rev 0.00
June 29, 2007
Page 2 of 13



Renesas ISL9106IRZ
ISL9106
Electrical Specifications
PARAMETER
Unless otherwise noted, all parameter limits are guaranteed over the recommended operating conditions and
the typical specifications are measured at the following conditions: TA = +25°C, VIN = VEN = VMODE = 3.6V,
VRSI = 0V, L = 2.2µH, C1 = 10µF, C2 = 10µF, IOUT = 0A (see the Typical Application Circuit). (Continued)
SYMBOL
TEST CONDITIONS
MIN
TYP
MAX UNITS
PG
Output Low Voltage
Sinking 1mA, VFB = 0.7V
-
-
0.3
V
Delay Time
150
215
275
ms
PG Pin Leakage Current
Minimum Supply Voltage for Valid PG Signal
PG = VIN = 3.6V
-
0.01
0.1
A
1.2
-
-
V
Internal PGOOD Low Rising Threshold
Percentage of Nominal Regulation Voltage
89.5
92
94.5
%
Internal PGOOD Low Falling Threshold
Percentage of Nominal Regulation Voltage
85
88
91
%
Internal PGOOD High Rising Threshold
Percentage of Nominal Regulation Voltage 108.2 110.7 113.2
%
Internal PGOOD High Falling Threshold
Percentage of Nominal Regulation Voltage
104
107
110
%
Internal PGOOD Delay Time
-
50
-
µs
EN, MODE, RSI
Logic Input Low
-
-
0.4
V
Logic Input High
1.4
-
-
V
Logic Input Leakage Current
Pulled up to 5.5V
-
0.1
1
µA
Thermal Shutdown
-
150
-
°C
Thermal Shutdown Hysteresis
-
25
-
°C
FN6509 Rev 0.00
June 29, 2007
Page 3 of 13







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