Solved by
SP6203/6205
TM
Low Noise, 300mA and 500mA CMOS LDO Regulators
FEATURES
FꢀXED
ADJUSTABLE
■ Very Low Dropout Voltage: 0.61 PMOS Pass
ꢃ
VOUT
ꢃ
ꢀ
ꢀ
2
VOUT
V
OUT
Device
ADJ
NC
SP6203
SP6205
SP6203
SP6205
■ Accurate Output Voltage: 2% over Temperature
■ Guaranteed 500mA Output Current: SP6205
■ Ultra Low Noise Output: ꢀ2µVRMS with ꢀ0nF
Bypass
BYP
7
6
5
2
3
ꢂ
NC
NC
NC
NC
7
6
5
GND
GND
EN
3
ꢂ
8 Pin DFN
8 Pin DFN
VIN
EN
V
IN
■ Unconditionally Stable with 2.2µF Ceramic
■ Low Quiescent Current: ꢂ5µA
■ Very Low Ground Current: 350µA at 500 mA
■ Power-Saving Shutdown Mode: < ꢀµA
■ Fast Turn-On and Turn-Off: 60µS
■ Fast Transient Response
NowAvailableinLeadFreePackaging
APPLꢀCATꢀONS
■ Current Limit and Thermal Shutdown Protection
■ Very Good Load/Line Regulation: 0.07/0.0ꢂ%
■ Excellent PSRR: 67dB < ꢀkHz
■ Industry Standard SOT-23-5 and Small ꢃ pin
2X3 DFN Package
■ Fixed Output Voltages: 2.5V, 2.7V, 2.ꢃV,
■ Cellular / GSM Phones
■ Laptop / Palmtop Computers
■ Battery-Powered Systems
■ Pagers
■ Medical Devices
■ MP3/CD Players
2.ꢃ5V, 3.0V and 3.3V
■ Adjustable Output Available
■ Digital Still Cameras
DESCRꢀPTꢀON
The SP6203/6205 are ultra low noise CMOS LDOs with very low dropout and ground current. The noise
performance is achieved by means of an external bypass capacitor without sacrificing turn-on and turn-off
speedcriticaltoportableapplications.Extremelystableandeasytouse,thesedevicesofferexcellentPSRR
and Line/Load regulation. Target applications include battery-powered equipment such as portable and
wirelessproducts.Regulators'groundcurrentincreasesonlyslightlyindropout.Fastturn-on/turn-offenable
control and an internal 301 pull down on output allows quick discharge of output even under no load
conditions. Both LDOs are protected with current limit and thermal shutdown.
Both LDOs are available in fixed & adjustable output voltage versions and come in an industry standard
SOT-23 5-pin and small 2X3 ꢃpin DFN packages. For SC-70 ꢀ00mA CMOS LDO, SP62ꢀ3 is available.
TYPꢀCAL APPLꢀCATꢀON CꢀRCUꢀT
V
V
IN
IN
V
V
OUT
OUT
1
2
3
5
4
1
2
3
5
4
C
C
2.2µF
IN
IN
C
OUT
2.2µF Ceramic
C
OUT
2.2µF Ceramic
2.2µF
SP6203
SP6205
SP6203
SP6205
5-Pin
ADJUSTABLE
5-Pin
FIXED
ADJ
EN
EN
BYP
Date: Apr2-07
SP6203/SP6205 Low Noise, 300 and 500mA CMOS LDO Regulators
© 2007 Sipex Corporation
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