SP6203 Datasheet, PDF (1/14 Pages) Sipex Corporation – Low Noise, 300mA and 500mA CMOS LDO Regulators

®
SP6203/6205
Low Noise, 300mA and 500mA CMOS LDO Regulators
FEATURES
■ Very Low Dropout Voltage: 0.6Ω PMOS Pass
Device
■ Accurate Output Voltage: 2% over Temperature
■ Guaranteed 500mA Output Current: SP6205
■ Ultra Low Noise Output: 12µV_RMS with 10nF
Bypass
■ Unconditionally Stable with 2.2µF Ceramic
■ Low Quiescent Current: 45µA
■ Very Low Ground Current: 350µA at 500 mA
■ Power-Saving Shutdown Mode: < 1µA
■ Fast Turn-On and Turn-Off: 60us
■ Fast Transient Response
■ Current Limit and Thermal Shutdown Protection
■ Very Good Load/Line Regulation: 0.07/0.04%
■ Excellent PSRR: 67dB<1kHz
■ Industry Standard 5 pin SOT-23 and Small 8
pin DFN Package
■ Fixed Output Voltages: 2.5V, 2.7V, 2.8V,
2.85V, 3.0V and 3.3V
■ Adjustable Output Available
Fixed
Adjustable
V_OUTSENSE 1
BYP 2
GND 3
EN 4
SP6203
SP6205
8 Pin DFN
8 V_{OUT ADJ 1}
7 NC _{NC 2}
6 NC GND ₃
5 V_{IN EN 4}
SP6203
SP6205
8 Pin DFN
8 V_OUT
7 NC
6 NC
5 V_IN
Now Available in Lead Free Packaging
APPLICATIONS
■ Cellular / GSM Phones
■ Laptop / Palmtop Computers
■ Battery-Powered Systems
■ Pagers
■ Medical Devices
■ MP3/CD Players
■ Digital Still Cameras
DESCRIPTION
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
speed critical to portable applications. Extremely stable and easy to use, these devices offer excellent PSRR
and Line/Load regulation. Target applications include battery-powered equipment such as portable and
wireless products. Regulators' ground current increases only slightly in dropout. Fast turn-on/turn-off enable
control and an internal 30Ω 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 LDO's are availiable in fixed & adjustable output voltage versions and come in an industry standard
5 pin SOT-23 and small 8 pin DFN package. For SC-70 100mA CMOS LDO, SP6213 is available.
TYPICAL APPLICATION CIRCUIT
V_IN
1
C_IN
2.2µF
2
EN
3
SP6203
SP6205
5-Pin
FIXED
5
V_OUT
C_OUT
2.2µF Ceramic
4
BYP
V_IN
1
5
C_IN
2.2µF
2
SP6203
SP6205
EN
3
5-Pin
4
ADJUSTABLE
V_OUT
C_OUT
2.2µF Ceramic
ADJ
Date: 05/25/04
SP6203/6205 Low Noise, 300 and 500mA CMOS LDO Regulators
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© Copyright 2004 Sipex Corporation