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ISL9021 Scheda tecnica(PDF) 1 Page - Renesas Technology Corp

Il numero della parte ISL9021
Spiegazioni elettronici  250mA Single LDO with Low IQ, Low Noise and High PSRR LDO
PDF  10 Pages
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Produttore elettronici  RENESAS [Renesas Technology Corp]
Homepage  http://www.renesas.com
Logo RENESAS - Renesas Technology Corp

ISL9021 Scheda tecnica(HTML) 1 Page - Renesas Technology Corp

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FN6867 Rev 2.00
Page 1 of 10
January 14, 2010
FN6867
Rev 2.00
January 14, 2010
ISL9021
250mA Single LDO with Low IQ, Low Noise and High PSRR LDO
DATASHEET
The ISL9021 is a single LDO providing high performance
low input voltage, high PSRR. It delivers guaranteed
continuous 250mA load current and is stable with 1µF to
4.7µF of output capacitance (±30%) with an ESR range of
5m
 to 400m.
The input voltage range for the ISL9021 is between 1.5V to
5.5V and the output voltage comes in many fixed voltage
options with ±1.8% accuracy over temperature, line and load
ranges. Other output voltage within the range of 0.9V to 3.3V
may be available upon request. The ISL9021 has typical
PSRR of 75dB @ 10kHz and 50dB @ 1MHz.
The reverse current protection feature prevents current from
flowing back to the power source when the output voltage is
pulled higher than the input.
The ISL9021 is offered in tiny 4-bump 1.155mmx0.975mm
WLCSP and 1.6mmx1.6mm 6 Ld µTDFN packages.
Pinouts
ISL9021
(6 LD 1.6x1.6 µTDFN)
TOP VIEW
ISL9021
(4 BALL 1.155x0.975 WLCSP)
TOP VIEW
Features
• High Performance LDO with 250mA guaranteed
continuous output current
• Input Voltage Range: 1.5V to 5.5V
• Output Voltage Range: 0.9V to 3.3V
• High PSRR: 75dB @ 10kHz, 50dB @ 1MHz
• Low Quiescent Current: 35µA
• Dropout Voltage: <150mV @ 250mA
• Stable with 1µF to 4.7µF Output Capacitance (±30%) with
an ESR range of 5m
 to 400m
• ±1.8% Output Accuracy Over-Temperature/Load/Line
• Soft-start Limits Input Current Surge During Enable
• Current Limit and Overheat Protection
• -40°C to +85°C Operating Temperature Range
• Available in 1.155mmx0.975mm 4-bump WLCSP
Package and 1.6mmx1.6mm 6 Ld µTDFN
• Pb-free (RoHS compliant)
Applications
• PDAs, Cell Phones and Smart Phones
• Portable Instruments, MP3 Players
• Handheld Devices including Medical Handhelds
1
2
3
4
5
6
VIN
GND
NC
VO
NC
EN
VIN
EN
GND
VOUT
A1
B1
A2
B2
NOT REC
OMMEND
ED FOR N
EW DESIG
NS
RECOMM
ENDED R
EPLACEM
ENT PAR
T
ISL9021A


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