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ISL9008AのメーカーはIntersil Corporationです、この部品の機能は「Low Noise LDO」です。 |
部品番号 | ISL9008A |
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部品説明 | Low Noise LDO | ||
メーカ | Intersil Corporation | ||
ロゴ | |||
このページの下部にプレビューとISL9008Aダウンロード(pdfファイル)リンクがあります。 Total 11 pages
®
Data Sheet
April 16, 2007
ISL9008A
FN6300.2
Low Noise LDO with Low IQ, High PSRR
ISL9008A is a high performance single low noise, high
PSRR LDO that delivers a continuous 150mA of load
current. It has a low standby current and is stable with 1μF of
MLCC output capacitance with an ESR of up to 200mΩ.
The ISL9008A has a high PSRR of 65dB and output noise
less than 45μVRMS. When coupled with a no load quiescent
current of 46μA (typical), and 0.5μA shutdown current, the
ISL9008A is an ideal choice for portable wireless equipment.
The ISL9008A comes in several fixed voltage options with
±1.8% output voltage accuracy over temperature, line and
load. Other output voltage options are available on request.
Pinouts
ISL9008A
(5 LD SC-70)
TOP VIEW
VIN 1 5 VO
GND 2
EN 3 4 NC
ISL9008A
(6 LD 1.6x1.6 μTDFN)
TOP VIEW
VO 1
6 VIN
GND 2
55 NC
NC 3
4 EN
Features
• High performance LDO with 150mA continuous output
• Excellent transient response to large current steps
• Excellent load regulation:
<0.1% voltage change across full range of load current
• High PSRR: 65dB @ 1kHz
• Wide input voltage capability: 2.3V to 6.5V
• Very low quiescent current: 46μA
• Low dropout voltage: typically 200mV @ 150mA
• Low output noise: typically 45μVRMS @ 100μA (1.5V)
• Stable with 1µF to 4.7μF ceramic capacitors
• Shutdown pin turns off LDO with 1μA (max) standby
current
• Soft-start limits input current surge during enable
• Current limit and overheat protection
• ±1.8% accuracy over all operating conditions
• 5 Ld SC-70 package or 6 Ld μTDFN package
• -40°C to +85°C operating temperature range
• Pb-free plus anneal available (RoHS compliant)
Applications
• PDAs, cell phones and smart phones
• Portable instruments, MP3 players
• Handheld devices including medical handhelds
1 CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
1-888-INTERSIL or1-888-468-3774 | Intersil (and design) is a registered trademark of Intersil Americas Inc.
Copyright © Intersil Americas Inc. 2006, 2007. All Rights Reserved.
All other trademarks mentioned are the property of their respective owners.
1 Page ISL9008A
Absolute Maximum Ratings
Supply Voltage (VIN) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +7.1V
All Other Pins . . . . . . . . . . . . . . . . . . . . . . . . . . -0.3V to (VIN+0.3V)
Recommended Operating Conditions
Ambient Temperature Range (TA) . . . . . . . . . . . . . . .-40°C to +85°C
Supply Voltage (VIN) . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2.3 to 6.5V
Thermal Information
Thermal Resistance
θJA (°C/W)
5 Ld SC-70 Package (Note 3) . . . . . . . . . . . . . . . . .
231
6 Ld μTDFN Package (Note 4) . . . . . . . . . . . . . . . .
125
Junction Temperature Range . . . . . . . . . . . . . . . . .-40°C to +125°C
Operating Temperature Range . . . . . . . . . . . . . . . . .-40°C to +85°C
Storage Temperature Range . . . . . . . . . . . . . . . . . .-65°C to +150°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:
3. θJA is measured with the component mounted on a high effective thermal conductivity test board in free air. See Tech Brief TB379 for details.
4. θJA 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.
Electrical Specifications
Unless otherwise noted, all parameters are guaranteed over the operational supply voltage and temperature
range of the device as follows:
TA = -40°C to +85°C; VIN = (VO + 0.5V) to 6.5V with a minimum VIN of 2.3V; CIN = 1μF; CO = 1μF
PARAMETER
SYMBOL
TEST CONDITIONS
MIN TYP MAX UNITS
DC CHARACTERISTICS
Supply Voltage
Ground Current
Shutdown Current
UVLO Threshold
Regulation Voltage Accuracy
VIN
IDD
IDDS
VUV+
VUV-
Quiescent condition: IO = 0μA
Initial accuracy at VIN = VO + 0.5V, IO = 10mA, TJ = +25°C
VIN = VO + 0.5V to 6.5V, IO = 10μA to150mA, TJ = +25°C
VIN = VO + 0.5V to 6.5V, IO = 10μA to 150mA, TJ = -40°C to
+125°C
2.3
46
0.5
1.9 2.1
1.6 1.8
-0.7
-0.8
-1.8
6.5
66
1.2
2.3
2.0
+0.7
+0.8
+1.8
V
μA
μA
V
V
%
%
%
Maximum Output Current
Internal Current Limit
Drop-out Voltage (Note 6)
Thermal Shutdown
Temperature
AC CHARACTERISTICS
IMAX
ILIM
VDO1
VDO2
VDO3
TSD+
TSD-
Continuous
IO = 150mA; VO < 2.5V
IO = 150mA; 2.5V ≤ VO ≤ 2.8V
IO = 150mA; 2.8V < VO
150
175 265
300
250
200
140
110
355
500
400
325
mA
mA
mV
mV
mV
°C
°C
Ripple Rejection (Note 5)
IO = 10mA, VIN = 2.8V(min), VO = 1.8V
@ 1kHz
65 dB
@ 10kHz
45 dB
@ 100kHz
35 dB
Output Noise Voltage (Note 5)
VO = 1.5V, TA = +25°C
BW = 10Hz to 100kHz, IO = 100μA
BW = 10Hz to 100kHz, IO = 10mA
DEVICE START-UP CHARACTERISTICS
45 μVRMS
65 μVRMS
Device Enable Time
tEN Time from assertion of the ENx pin to when the output voltage
reaches 95% of the VO(nom)
250 500
μs
LDO Soft-start Ramp Rate
tSSR Slope of linear portion of LDO output voltage ramp during start-up
30 60
μs/V
3 FN6300.2
April 16, 2007
3Pages ISL9008A
Typical Performance Curves (Continued)
115
105 IL = 150mA
95
85
75 IL = 75mA
65
55
VIN = 3.8V
VO = 3.3V
45
IL = 0mA
35
-40 -30 -20 -10 0 10 20 30 40 50 60 70 80 90
TEMPERATURE (°C)
FIGURE 11. GROUND CURRENT vs TEMPERATURE
VIN = 5.0V
3 VO = 3.3V
IL = 150mA
2 CL = 1µF
1
0
5
0
0 100 200 300 400 500 600 700 800 900 1000
TIME (µs)
FIGURE 12. TURN ON/TURN OFF RESPONSE
4.3V
3.6V
VO = 3.3V
ILOAD = 150mA
CLOAD = 1μF
CBYP = 0.01μF
4.2V
3.5V
VO = 2.8V
ILOAD = 150mA
CLOAD = 1μF
CBYP = 0.01μF
10mV/DIV
400μs/DIV
FIGURE 13. LINE TRANSIENT RESPONSE, 3.3V OUTPUT
100mA
ILOAD
VO = 3.3V
VIN = 3.8V
100μA
VO (10mV/DIV)
1.0 ms/DIV
FIGURE 15. LOAD TRANSIENT RESPONSE
6
10mV/DIV
400μs/DIV
FIGURE 14. LINE TRANSIENT RESPONSE, 2.8V OUTPUT
80
10mA
70
60 50mA
50
40
30
20 VIN = 3.9V
VO = 1.8V
10 CLOAD = 1μF
0.1k
1k
10k 100k
FREQUENCY (Hz)
FIGURE 16. PSRR vs FREQUENCY
1M
FN6300.2
April 16, 2007
6 Page | |||
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部品番号 | 部品説明 | メーカ |
ISL9008 | Low Noise LDO | Intersil |
ISL9008A | Low Noise LDO | Intersil Corporation |