LT3029 Datasheet, PDF (20/20 Pages) Linear Technology – Dual 500mA/500mA Low Dropout, Low Noise, Micropower Linear Regulator

LT3029
TYPICAL APPLICATION
3.3V
0.1μF
V_CC
GATE
OFF _ON
ON
RAMP
LTC2923
113k
1%
90.9k
1%
RAMPBUF FB1
TRACK1 SDO
54.9k
1%
TRACK2 FB2
63.4k
GND
1%
Coincident Tracking Supply Application
C_GATE
0.1μF
3.3V
OUT1
IN1
3.3μF
BYP1
ADJ1
1M
LT3029
SHDN1
2.5V
IN2
3.3μF
OUT2
BYP2
SHDN2 _ADJ2
GND
10nF 113k
1%
237k
1%
V_OUT1
1.8V
3.3μF _500mA
10nF ^54.9k
1%
237k
1%
3029 TA02
V_OUT2
3.3μF 1.5V
500mA
V_OUT1
V_OUT2
500mV/DIV
10ms/DIV
3029 TA02b
RELATED PARTS
PART NUMBER DESCRIPTION
COMMENTS
LT1761
LT1763
LT1963/
LT1963A
100mA, Low Noise Micropower LDO
500mA, Low Noise Micropower LDO
1.5A, Low Noise, Fast Transient
Response LDOs
V_IN: 1.8V to 20V, V_OUT(MIN) = 1.22V, V_DO = 0.3V, I_Q = 20μA, I_SD < 1μA,
Low Noise < 20μV_RMS, Stable with 1μF Ceramic Capacitors, ThinSOT^TM Package
V_IN: 1.8V to 20V, V_OUT(MIN) = 1.22V, V_DO = 0.3V, I_Q = 30μA, I_SD < 1μA,
Low Noise < 20μV_RMS, S8 and DFN Packages
V_IN: 2.1V to 20V, V_OUT(MIN) = 1.21V, V_DO = 0.34V, I_Q = 1mA, I_SD < 1μA,
Low Noise: < 40μV_RMS, “A” Version Stable with Ceramic Capacitors;
DD, TO220-5, SOT223, S8 and TSSOP Packages
LT1964
LT1965
200mA, Low Noise Micropower,
Negative LDO
1.1A, Low Noise LDO
V_IN: –1.9V to –20V, V_OUT(MIN) = –1.22V, V_DO = 0.34V, I_Q = 30μA, I_SD = 3μA,
Low Noise: <30μV_RMS, Stable with Ceramic Capacitors, ThinSOT Package
V_IN: 1.8V to 20V, V_OUT(MIN) = 1.20V, V_DO = 0.31V, I_Q = 0.5mA, I_SD < 1μA,
Low Noise: <40μV_RMS, Stable with Ceramic Capacitors; 3mm × 3mm DFN,
MS8E, DD-Pak and TO-220 Packages
LT3020
LT3021
LT3023
100mA, Low Voltage VLDO
500mA, Low Voltage VLDO
Dual 100mA, Low Noise,
Micropower LDO
V_IN: 0.9V to 10V, V_OUT(MIN) = 0.20V, V_DO = 0.15V, I_Q = 120μA, I_SD < 3μA;
3mm × 3mm DFN and MS8 Packages
V_IN: 0.9V to 10V, V_OUT(MIN) = 0.20V, V_DO = 0.16V, I_Q = 120μA, I_SD < 3μA;
5mm × 5mm DFN and SO8 Packages
V_IN: 1.8V to 20V, V_OUT(MIN) = 1.22V, V_DO = 0.30V, I_Q = 40μA, I_SD < 1μA;
DFN and MS10E Packages
LT3024
Dual 100mA/500mA, Low Noise,
Micropower LDO
V_IN: 1.8V to 20V, V_OUT(MIN) = 1.22V, V_DO = 0.30V, I_Q = 60μA, I_SD < 1μA;
DFN and TSSOP-16E Packages
LTC3025
LTC3026
LT3027
300mA, Low Voltage Micropower VLDO
1.5A, Low Input Voltage VLDO
Dual 100mA, Low Noise, Micropower
LDO with Independent Inputs
V_IN: 0.9V to 5.5V, Low I_Q: 54μA, Low Noise < 80μV_RMS, 45mV Dropout Voltage;
2mm × 2mm 6-Lead DFN Package
V_IN: 1.14V to 5.5V, Low I_Q: 950μA, Low Noise < 110μV_RMS, 100mV Dropout Voltage;
10-Lead 3mm × 3mm DFN and MS10E Packages
V_IN: 1.8V to 20V, V_OUT(MIN) = 1.22V, V_DO = 0.30V, I_Q = 50μA, I_SD < 1μA;
DFN and MS10E Packages
LT3028
Dual 100mA/500mA, Low Noise, Micropower V_IN: 1.8V to 20V, V_OUT(MIN) = 1.22V, V_DO = 0.32V, I_Q = 60μA, I_SD < 1μA;
LDO with Independent Inputs
DFN and TSSOP-16E Packages
LT3080/
LT3080-1
1.1A, Parallelable, Low Noise LDO
ThinSOT is a trademark of Linear Technology Corporation.
V_IN: 1.2V to 36V, V_OUT: 0V to 35.7V, Low Noise < 40μV_RMS, 300mV Dropout Voltage
(2-Supply Operation), Current-Based Reference with 1-Resistor V_OUT Set, Directly
Parallelable (No Op Amp Required), Stable with Ceramic Capacitors;
TO-220, SOT-223, MS8E and 3mm × 3mm DFN Packages
3029f
20 Linear Technology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7417
[phone] ^● FAX: [phone] ^● www.linear.com
LT 0110 • PRINTED IN USA
© LINEAR TECHNOLOGY CORPORATION 2010