ISL9021 250mA Single LDO with Low I<sub>Q</sub>, Low Noise and High PSRR LDO

ISL9021

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250mA Single LDO with Low I_Q, Low Noise and High PSRR LDO

Datasheets,
Related Docs
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Ordering Information

iBuy direct from Intersil	iBuy direct - out of stock	Request samples
Check distributor inventory	Available in RoHS/Pb-Free

Part No.

Design-In
Status

Temp.

Package

MSL

Price
US $

ISL9021II1Z-T

Active

Ind

4 Ld WLCSP T+R

0.69

ISL9021II2Z-T

Active

Ind

4 Ld WLCSP T+R

0.69

ISL9021II3Z-T

Active

Ind

4 Ld WLCSP T+R

0.69

ISL9021II4Z-T

Active

Ind

4 Ld WLCSP T+R

0.69

ISL9021IIBZ-T

Active

Ind

4 Ld WLCSP T+R

0.69

ISL9021IICZ-T

Active

Ind

4 Ld WLCSP T+R

0.69

ISL9021IIFZ-T

Active

Ind

4 Ld WLCSP T+R

0.69

ISL9021IIGZ-T

Active

Ind

4 Ld WLCSP T+R

0.69

ISL9021IIJZ-T

Active

Ind

4 Ld WLCSP T+R

0.69

ISL9021IIKZ-T

Active

Ind

4 Ld WLCSP T+R

0.69

ISL9021IIMZ-T

Active

Ind

4 Ld WLCSP T+R

0.69

ISL9021IINZ-T

Active

Ind

4 Ld WLCSP T+R

0.69

ISL9021IIPZ-T

Active

Ind

4 Ld WLCSP T+R

0.69

ISL9021IIRZ-T

Active

Ind

4 Ld WLCSP T+R

0.69

ISL9021IISZ-T

Active

Ind

4 Ld WLCSP T+R

0.69

ISL9021IITZ-T

Active

Ind

4 Ld WLCSP T+R

0.69

ISL9021IIWZ-T

Active

Ind

4 Ld WLCSP T+R

0.69

ISL9021IIYZ-T

Active

Ind

4 Ld WLCSP T+R

0.69

ISL9021IRU1Z-T

Active

Ind

6 Ld uTDFN T+R

0.69

ISL9021IRU2Z-T

Active

Ind

6 Ld uTDFN T+R

0.69

ISL9021IRU3Z-T

Active

Ind

6 Ld uTDFN T+R

0.69

ISL9021IRU4Z-T

Active

Ind

6 Ld uTDFN T+R

0.69

ISL9021IRUBZ-T

Active

Ind

6 Ld uTDFN T+R

0.69

ISL9021IRUCZ-T

Active

Ind

6 Ld uTDFN T+R

0.69

ISL9021IRUFZ-T

Active

Ind

6 Ld uTDFN T+R

0.69

ISL9021IRUGZ-T

Active

Ind

6 Ld uTDFN T+R

0.69

ISL9021IRUJZ-T

Active

Ind

6 Ld uTDFN T+R

0.69

ISL9021IRUKZ-T

Active

Ind

6 Ld uTDFN T+R

0.69

ISL9021IRUMZ-T

Active

Ind

6 Ld uTDFN T+R

0.69

ISL9021IRUNZ-T

Active

Ind

6 Ld uTDFN T+R

0.69

ISL9021IRUPZ-T

Active

Ind

6 Ld uTDFN T+R

0.69

ISL9021IRURZ-T

Active

Ind

6 Ld uTDFN T+R

0.69

ISL9021IRUSZ-T

Active

Ind

6 Ld uTDFN T+R

0.69

ISL9021IRUTZ-T

Active

Ind

6 Ld uTDFN T+R

0.69

ISL9021IRUWZ-T

Active

Ind

6 Ld uTDFN T+R

0.69

ISL9021IRUYZ-T

Active

Ind

6 Ld uTDFN T+R

0.69

The price listed is the manufacturer's suggested retail price for quantities of 1K units. However, prices in today's market are fluid and may change without notice.

MSL = Moisture Sensitivity Level - per IPC/JEDEC J-STD-020

SMD = Standard Microcircuit Drawing

Description

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 5mΩ to 400mΩ.

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.

Key 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 5mΩ to 400mΩ
±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)

Related Documentation

Datasheet(s):
250mA Single LDO with Low I_Q, Low Noise and High PSRR LDO

Parametric Data


V_IN Range (V)		1.5 to 5.5

V_OUT Range (V)		0.9 to 3.3

Fixed Output Voltage Option		Y

O/P Volt Accuracy (%)		±1.8

I_OUT1 (max) (mA)		250

I_OUT2 (max) (mA)		N/A

PSRR @ 1kHz (dB)		60

Noise (V_RMS 10 to 100) (kHz)		13

Iq (μA)		35

Typical Drop-Out Voltage (mV)		150 @ 250mA

Enable/Shutdown		Y

# of PORs		N/A

Operating Temp. Range (°C)		-40 to +85

Application Block Diagrams

Applications

PDAs, Cell Phones and Smart Phones
Portable Instruments, MP3 Players
Handheld Devices including Medical Handhelds

Related Devices

Parametric Table

	ICL7663S		CMOS Programmable Micropower Positive Voltage Regulator
	ISL6412		Triple Output, Low-Noise LDO Regulator with Integrated Reset Circuit
	ISL6414		Triple Output, Low-Noise LDO Regulator with Integrated Reset Circuit
	ISL6416		Triple Output, Low-Noise LDO Regulator with Integrated Reset Circuit
	ISL9000		Dual LDO with Low Noise, Very High PSRR, and Low I_Q
	ISL9000A		Dual LDO with Low Noise, Very High PSRR, and Low I_Q
	ISL9001		LDO with Low I_SUPPLY, High PSRR
	ISL9001A		LDO with Low I_SUPPLY, High PSRR
	ISL9003A		Low Noise LDO with Low I_Q, High PSRR
	ISL9005		LDO with Low I_SUPPLY, High PSRR
	ISL9005A		LDO with Low I_SUPPLY, High PSRR
	ISL9007		High Current LDO with Low I_Q and High PSRR
	ISL9008A		Low Noise LDO with Low I_Q, High PSRR
	ISL9011		Dual LDO with Low Noise, Low I_Q, and High PSRR
	ISL9011A		Dual LDO with Low Noise, Low IQ, and High PSRR
	ISL9012		Dual LDO with Low Noise, Low I_Q, and High PSRR
	ISL9014		Dual LDO with Low Noise, Low I_Q, and High PSRR
	ISL9014A		Dual LDO with Low Noise, Low IQ, and High PSRR
	ISL9016		150mA Dual LDO with Low Noise, High PSRR, and Low I_Q