Date: 2//05
SP6203/6205 Low Noise, 300 and 500mA CMOS LDO Regulators
SP6203/6205
SP6203/6205
Low Noise, 300mA and 500mA CMOS LDO Regulators
Copyright 2005 Sipex Corporation
■
Very Low Dropout Voltage: 0.6
1
PMOS Pass
Device
■
Accurate Output Voltage: 2% over Temperature
■
Guaranteed 500mA Output Current: SP6205
■
Ultra Low Noise Output: 2
μ
V
RMS
with 0nF
Bypass
■
Unconditionally Stable with 2.2
μ
F Ceramic
■
Low Quiescent Current: 5
μ
A
■
Very Low Ground Current: 350
μ
A at 500 mA
■
Power-Saving Shutdown Mode: <
μ
A
■
Fast Turn-On and Turn-Off: 60
μ
S
■
Fast Transient Response
■
Current Limit and Thermal Shutdown Protection
■
Very Good Load/Line Regulation: 0.07/0.0%
■
Excellent PSRR: 67dB < kHz
■
Industry Standard SOT-23-5 and Small pin
2X3 DFN Package
■
Fixed Output Voltages: 2.5V, 2.7V, 2.V,
2.5V, 3.0V and 3.3V
■
Adjustable Output Available
DESCRiPTiON
■
Cellular / GSM Phones
■
Laptop / Palmtop Computers
■
Battery-Powered Systems
■
Pagers
■
Medical Devices
■
MP3/CD Players
■
Digital Still Cameras
FEATURES
APPLiCATiONS
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 30
1
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 pin DFN packages. For SC-70 00mA CMOS LDO, SP623 is available.
TYPiCAL APPLiCATiON CiRCUiT
3
2
1
C
OUT
2.2
μ
F Ceramic
V
OUT
V
IN
EN
BYP
4
5
SP6203
SP6205
5-Pin
FIXED
C
IN
2.2
μ
F
3
2
1
C
OUT
2.2
μ
F Ceramic
V
OUT
V
IN
EN
ADJ
4
5
SP6203
SP6205
5-Pin
ADJUSTABLE
C
IN
2.2
μ
F
NowAvaabeinLeadFeePackagng
V
OUT
SP6203
SP6205
8 Pin DFN
V
IN
NC
V
OUT
BYP
GND
EN
NC
2
3
7
6
5
FiXED
SP6203
SP6205
8 Pin DFN
VIN
NC
VOUT
GND
EN
NC
2
3
7
6
5
ADJ
NC
ADJUSTABLE
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