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PDF ISL80103 Data sheet ( Hoja de datos )
| Número de pieza | ISL80103 | |
| Descripción | High Performance 2A and 3A Linear Regulators | |
| Fabricantes | Intersil Corporation | |
| Logotipo |  |
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DATASHEET
High Performance 2A and 3A Linear Regulators
ISL80102, ISL80103
The ISL80102 and ISL80103 are low voltage, high-current, single
output LDOs specified for 2A and 3A output current, respectively.
These LDOs operate from the input voltages of 2.2V to 6V and
are capable of providing the output voltages of 0.8V to 5.5V on
the adjustable VOUT versions. Other custom voltage options
available upon request.
For applications that demand inrush current less than the current
limit, an external capacitor on the soft-start pin provides
adjustment. The ENABLE feature allows the part to be placed into
a low quiescent current shutdown mode. A submicron BiCMOS
process is utilized for this product family to deliver the
best-in-class analog performance and overall value.
These CMOS (LDOs) will consume significantly lower quiescent
current as a function of load over bipolar LDOs, which translates
into higher efficiency and the ability to consider packages with
smaller footprints. The quiescent current has been modestly
compromised to enable a leading class fast load transient
response, and hence a lower total AC regulation band for an LDO
in this category.
Features
• Stable with ceramic capacitors (Note 11)
• 2A and 3A output current ratings
• 2.2V to 6V input voltage range
• ±1.8% VOUT accuracy guaranteed over line, load and
TJ = -40°C to +125°C
• Very low 120mV dropout voltage at 3A (ISL80103)
• Very fast transient response
• Excellent 62dB PSRR
• 49µVRMS output noise
• Power-good output
• Adjustable inrush current limiting
• Short-circuit and over-temperature protection
• Available in a 10 Ld DFN
Applications
• Servers
• Telecommunications and networking
• Medical equipment
• Instrumentation systems
• Routers and switchers
2.5V ±10%
VIN
CIN
10µF
9
VIN
10 VIN
ISL80102, ISL80103
VOUT
VOUT
1
2
COUT
10µF
ON
OFF
*CSS
*CSS is optional, (see Note 12 on page 5).
7 ENABLE
6 SS
GND
5
SENSE 3
4
PG
FIGURE 1. TYPICAL APPLICATION FOR FIXED OUTPUT VOLTAGE VERSION
1.8V ±1.8%
VOUT
RPG
100kΩ
PGOOD
September 2, 2016
FN6660.8
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 2009-2013, 2016. 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  
ISL80102, ISL80103
Electrical Specifications Unless otherwise noted, all parameters are established over the following specified conditions:
2.2V < VIN < 6V, VOUT = 0.5V, TJ = +25°C, ILOAD = 0A. Applications must follow thermal guidelines of the package to determine worst case junction
temperature. Please refer to “Functional Description” on page 12 and Tech Brief TB379. Boldface limits apply across the operating temperature range,
-40°C to +125°C. Pulse load techniques used by ATE to ensure TJ = TA defines established limits. (Continued)
PARAMETER
SYMBOL
TEST CONDITIONS
MIN MAX
(Note 9) TYP (Note 9) UNIT
Ground Pin Current in Shutdown
Dropout Voltage (Note 10)
Output Short-Circuit Current
(3A Version)
ISHDN
VDO
ISC
EN = 0V, VIN = 5V
EN = 0V, VIN = 6V
ISL80103, ILOAD = 3A, VOUT = 2.5V
ISL80102, ILOAD = 2A, VOUT = 2.5V
ISL80103, ILOAD = 3A, VOUT = 5.5V
ISL80102, ILOAD = 2A, VOUT = 5.5V
ISL80103, VOUT = 0V
0.4
3.3 16.0
120 185
81 125
120 244
60 121
5.0
µA
µA
mV
mV
mV
mV
A
Output Short-Circuit Current
(2A Version)
ISL80102, VOUT = 0V
2.8 A
Thermal Shutdown Temperature
TSD
160 °C
Thermal Shutdown Hysteresis
TSDn
15 °C
AC CHARACTERISTICS
Input Supply Ripple Rejection
Output Noise Voltage
PSRR
f = 1kHz, ILOAD = 1A; VIN = 2.2V
f = 120Hz, ILOAD = 1A; VIN = 2.2V
VIN = 2.2V, VOUT = 1.8V, ILOAD = 3A,
BW = 100Hz < f < 100kHz
55 dB
62 dB
49 µVRMS
ENABLE PIN CHARACTERISTICS
Turn-On Threshold
Turn-Off Threshold
Hysteresis
Enable Pin Turn-On Delay
Enable Pin Leakage Current
SOFT-START CHARACTERISTICS
VEN(HIGH)
VEN(LOW)
VEN(HYS)
tEN
2.9V < VIN < 6V for 2.5V for fixed output option.
2.2V < VIN < 6V for adjustable and 1.8V
2.9V < VIN < 6V for 2.5V fixed output option.
2.2V < VIN < 6V for adjustable and 1.8V
2.9V < VIN < 6V for 2.5V fixed output option.
2.2V < VIN < 6V for adjustable and 1.8V
COUT = 10µF, ILOAD = 1A
VIN = 6V, EN = 3V
0.616 0.800 0.950 V
0.463 0.600
V
135 mV
150
1
µs
µA
Reset Pull-Down Resistance
RPD
323 Ω
Soft-Start Charge Current
ICHG
-7.0 -4.5 -2.0
µA
PG PIN CHARACTERISTICS
VOUT PG Flag Threshold
75 84 92 %VOUT
VOUT PG Flag Hysteresis
4%
PG Flag Low Voltage
ISINK = 500µA
47 100 mV
PG Flag Leakage Current
VIN = 6V, PG = 6V
0.05
1
µA
NOTES:
9. Compliance to datasheet limits is assured by one or more methods: production test, characterization and/or design.
10. Dropout is defined by the difference in supply VIN and VOUT when the supply produces a 2% drop in VOUT from its nominal value.
11. Minimum cap of 10µF X5R/X7R on VIN and VOUT required for stability.
12. If the current limit for inrush current is acceptable in application, do not use this feature (leave SS pin open). Used only when large bulk capacitance required
on VOUT for application.
Submit Document Feedback
5
FN6660.8
September 2, 2016
5 Page 
ISL80102, ISL80103
Typical Operating Performance Unless otherwise noted: VIN = 2.2V, VOUT = 1.8V, CIN = COUT = 10µF, TJ = +25°C,
IL = 0A. (Continued)
VOUT (20mV/DIV)
IOUT (2A/DIVd) i/dt = 3A/sec
3.2V
2.2V
VIN (1V/DIV)
di/dt = 3A/µs
TIME (50µs/DIV)
FIGURE 33. LOAD TRANSIENT 0A TO 3A, COUT = 10µF CERAMIC,
CPB = 1500pF (ADJ VERSION)
VOUT (10mV/DIV)
TIME (200µs/DIV)
FIGURE 34. LINE TRANSIENT
90
80
70 100mA
60 NO LOAD
50
40
30 1000mA
20 300mA
10
0
10 100 1k 10k 100k 1M
FREQUENCY (Hz)
FIGURE 35. PSRR vs FREQUENCY FOR VOUT = 1.0V, VIN = 2.5V;
COUT = 47µF, CPB = 150pF
90
80 NO LOAD
70
60
50
100mA
40
30 1000mA
20 300mA
10
0
10 100 1k
10k
100k
1M
FREQUENCY (Hz)
FIGURE 36. PSRR vs FREQUENCY FOR VOUT = 1.2V; VIN = 2.5V;
COUT = 47µF, CPB = 150pF
90
300mA 100mA
80
70
60
50 2000mA
1000mA
40
30
20
10
0
10 100 1k 10k
FREQUENCY (Hz)
NO LOAD
100k
1M
FIGURE 37. PSRR vs FREQUENCY FOR VOUT = 1.5V, VIN = 2.5V;
COUT = 22µF, CPB = 82pF
Submit Document Feedback 11
90 1000mA
80
70
60
50 2000mA
40
100mA
3000mA
NO LOAD
30
20
10
0
10
300mA
100 1k
10k
FREQUENCY (Hz)
100k
1M
FIGURE 38. PSRR vs FREQUENCY FOR VOUT = 1.8V, VIN = 2.5V;
COUT = 22µF, CPB = 82pF
FN6660.8
September 2, 2016
11 Page | ||
| Páginas | Total 16 Páginas | |
| PDF Descargar | [ Datasheet ISL80103.PDF ] | |
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