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PDF ISL80083 Data sheet ( Hoja de datos )
| Número de pieza | ISL80083 | |
| Descripción | 2.5MHz Integrated Power Management IC | |
| Fabricantes | Intersil Corporation | |
| Logotipo |  |
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2.5MHz Integrated Power Management IC with I2C
Compatible Interface
ISL80083
ISL80083 is an integrated mini Power Management IC
(mini-PMIC) for powering low-voltage microprocessor, or
applications using a single Li-Ion or Li-Polymer cell battery to
power multiple voltage rails. ISL80083 integrates a
high-efficiency 2.5MHz synchronous step-down converter, a
low-input low-dropout linear regulator, 33MHz oscillator, level
shift, and input supply select.
The 2.5MHz PWM switching frequency allows for the use of
very small external inductors and capacitors. The step-down
converter can enter skip mode under light load conditions to
further improve the efficiency and maximize the battery life.
For noise sensitive applications, it can also be programmed
through I2C interface to operate in forced PWM mode,
regardless of the load current condition. The I2C interface
supports on-the-fly control of the output voltage from 0.625V
to 2.225V at 25mV/step size for dynamic power saving. The
step-down converter can supply up to 800mA load current.
ISL80083 also provides a 300mA low dropout (LDO) regulator.
The input voltage range is from 2.6V to 5.5V allowing it to be
powered from one of the on-chip step-down converters or directly
from the battery. The default LDO output comes with factory
pre-set fixed output voltage options between 0.9V to 3.6V.
ISL80083 is available in a 2.11mm x 2.13mm 25 Ball CSP
package.
Features
• 800mA synchronous step-down converter and 300mA,
general-purpose LDO
• 400kb/s I2C-bus series interface transfers the control data
between the host controller and the ISL80083
• Fixed SMPS output voltage I2C programmability
- At 25mV/step. . . . . . . . . . . . . . . . . . . . . . 0.625V to 2.225V
• LDO output voltage I2C programmability
- At 50mV/step. . . . . . . . . . . . . . . . . . . . . . . . . . . 0.9V to 3.6V
• 33MHz oscillator
• Level shift from 1.8V to 3V with enable
• Input select
• Switcher I2C programmable skip mode under light load or
forced fixed switching frequency PWM mode
Applications
• Power cable
100
90 1V - PFM
80
70
60
50
40
0.0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9
OUTPUT LOAD (A)
FIGURE 1. EFFICIENCY vs LOAD (3.3VIN, TA = +25°C)
1.0
May 15, 2013
FN7886.1
1
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
1-888-INTERSIL or 1-888-468-3774 |Copyright Intersil Americas LLC 2013. All Rights Reserved
Intersil (and design) is a trademark owned by Intersil Corporation or one of its subsidiaries.
All other trademarks mentioned are the property of their respective owners.
1 page  
ISL80083
Absolute Maximum Ratings (Refer to ground)
VIN_HOST, VIN_REMOTE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . --0.3V (DC) to 22V (DC)
VSELECT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . --0.3V (DC) to 6.5V (DC) or 7V (20ms)
PHASE. . . . . . . . . . . . . . . . . . . . .-1.5V (100ns)/-0.3V (DC) to 6.5V (DC) or 7V (20ms)
V3PCLAMP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.3V to 6.5V
AGND, OSCGND, PGND, GNDLDO . . . . . . . . . . . . . . . . . . . . . . . -0.3V to 0.3V
1VAUX, CFG2, CFG2_CR, LSRX, LSRX_CR . . . . . . . . . . . . . . . -0.3V to 3.6V
RESET, SDAT, SCLK, UART_EN, VOLDO . . . . . . . . . . . . . . . . . . -0.3V to 3.6V
All other pins . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.3V to 2.9V
ESD Ratings
Human Body Model (Tested per JESD22-A114F) . . . . . . . . . . . . . . . . 2kV
Machine Model (Tested per JESD22-A115-A) . . . . . . . . . . . . . . . . . 200V
Charged Device Model (Tested per JESD22-C101D) . . . . . . . . . . . . . 1kV
Latch Up (Tested per JESD78B, Class II, Level A) . . . . . . . . . . . . . . . 100mA
Thermal Information
Thermal Resistance (Typical)
θJA (°C/W) θJC (°C/W)
CSP Package (Notes 4, 5) . . . . . . . . . . . . . .
70
0.9
Maximum Junction Temperature Range . . . . . . . . . . . . . .-40°C to +150°C
Recommended Junction Temperature Range . . . . . . . . . . 0°C to +125°C
Storage Temperature Range. . . . . . . . . . . . . . . . . . . . . . . .-40°C to +150°C
Pb-free Reflow Profile . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . see link below
http://www.intersil.com/pbfree/Pb-FreeReflow.asp
Recommended Operating Conditions
VIN_HOST, VIN_REMOTE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2.7V to 20V
SMPS Output Current. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0A to 800mA
LDO Output Current . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0mA to 300mA
Operating Ambient Temperature . . . . . . . . . . . . . . . . . . . . . . 0°C to +85°C
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:
4. θJA is measured with the component mounted on a high effective thermal conductivity test board in free air. See Tech Brief TB379 for details.
5. For θJC, the “case temp” location is taken at the package top center.
Electrical Specifications 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_HOST or VIN_REMOTE = 3.3V. For LDO, VSELECT = VOLDO + 0.5V to
5.5V, L1 = 1.0µH, C1 = C4 = C5 = 10µF, C2 = C3 = C6 = 1µF, IOUT = 0A for SMPS and LDO (see Figure 1 for more details). Boldface limits apply across
the operating temperature range, -40°C to +85°C.
PARAMETER
SYMBOL
TEST CONDITIONS
MIN MAX
(Note 6) TYP (Note 6) UNIT
VIN_HOST or VIN_REMOTE Voltage
Range
2.7 20 V
VSELECT Undervoltage Lockout
Threshold
VUVLO
Rising, IOUT = 0A for both SMPS and LDO
Falling
2.40
2.30
2.56
2.46
2.62
2.57
V
V
Quiescent Supply Current on VSELECT
Thermal Shutdown
IVSELECT All outputs no loading
150 500
155
µA
°C
Thermal Shutdown Hysteresis
30 °C
INPUT SELECTOR
VIN_HOST P-Channel MOSFET
ON-resistance
Q1 VSELECT = 3.3V, IO = 200mA
0.20
Ω
VIN_REMOTE P-Channel MOSFET ON-
resistance
Q2 VSELECT = 3.3V, IO = 200mA
0.20
Ω
Minimum Pass Range Voltage
Maximum Pass Range Voltage
SMPS
VIN_MIN
VIN_Max
2.2 2.7
4.5 5.52
V
V
Output Start Up Voltage
VSELECT = 3.3V, PWM
0.950 1.000 1.050 V
Line Regulation
P-Channel MOSFET ON-resistance
N-Channel MOSFET ON-resistance
P-Channel MOSFET Peak Current Limit
PWM Switching Frequency
SW Minimum ON-time
VSELECT = VO + 0.5V to 5.5V (minimal 2.5V)
Q5 VSELECT = 3.3V, IO = 200mA
Q6 VSELECT = 3.3V, IO = 200mA
IPK
fS fOSC/13
VFB = 2V
0.1 %/V
0.14 0.18
Ω
0.05 0.08
Ω
1 1.4 1.7 A
2.5 MHz
70 ns
5 FN7886.1
May 15, 2013
5 Page 
ISL80083
Typical Performance Curves and Waveforms (Continued)
VIN HOST 1V/DIV
VIN HOST 1V/DIV
SMPS 1V/DIV
VIN REMOTE 5V/DIV
VLDO 2V/DIV
RESET B 2V/DIV
1ms/DIV
FIGURE 20. START-UP VIN REMOTE = 3.3V AT 0.8A LOAD (PWM)
SMPS 1V/DIV
VIN REMOTE 5V/DIV
VLDO 2V/DIV
RESET B 2V/DIV
10ms/DIV
FIGURE 21. SHUTDOWN VIN REMOTE = 3.3V AT 0.8A LOAD (PWM)
LX 1V/DIV
LX 1V/DIV
5ns/DIV
FIGURE 22. JITTER AT NO LOAD (PWM), VIN = 3.3V
LX 2V/DIV
5ns/DIV
FIGURE 23. JITTER AT FULL LOAD (PWM), VIN = 3.3V
LX 2V/DIV
SMPS 10mV/DIV
IL 0.5A/DIV
200ns/DIV
FIGURE 24. STEADY STATE AT NO LOAD (PWM), VIN = 3.3V
SMPS 20mV/DIV
IL 0.5A/DIV
50ms/DIV
FIGURE 25. STEADY STATE AT NO LOAD (PFM), VIN = 3.3V
11 FN7886.1
May 15, 2013
11 Page | ||
| Páginas | Total 21 Páginas | |
| PDF Descargar | [ Datasheet ISL80083.PDF ] | |
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