LT1963 Series

1.5A, Low Noise, Fast Transient Response LDO Regulators

Catalog

1.5A, Low Noise, Fast Transient Response LDO Regulators

Part	Operating Temperature [Max]	Operating Temperature [Min]	Control Features	Voltage - Output (Min/Fixed)	Voltage - Input (Max) [Max]	PSRR	Current - Output	Current - Supply (Max) [Max]	Supplier Device Package	Output Configuration	Number of Regulators	Protection Features	Package / Case [x]	Package / Case	Package / Case [x]	Mounting Type	Current - Quiescent (Iq)	Output Type	Voltage Dropout (Max)	Package / Case	Output Type	Voltage - Output (Max) [Max]
Analog Devices Inc LT1963AEFE-2.5#TRPBF	125 °C	-40 °C	Enable	2.5 V	20 V	63 dB	1.5 A	120 mA	16-TSSOP-EP	Positive	1	Over Current, Over Temperature, Reverse Polarity	4.4 mm	16-TSSOP, Exposed Pad	0.173 "	Surface Mount	1.5 mA	27.03 °C/W	0.55 V
Analog Devices Inc LT1963AEQ-1.8#PBF	125 °C	-40 °C	Enable	1.8 V	20 V	63 dB	1.5 A	120 mA	DDPAK-5	Positive	1	Over Current, Over Temperature, Reverse Polarity		D2PAK (5 Leads + Tab), TO-263-6, TO-263BA		Surface Mount	1.5 mA	27.03 °C/W	0.55 V
Analog Devices Inc LT1963EFE-1.5#TRPBF	125 °C	-40 °C	Enable	1.5 V	20 V	63 dB	1.5 A	120 mA	16-TSSOP-EP	Positive	1	Over Current, Over Temperature, Reverse Polarity	4.4 mm	16-TSSOP, Exposed Pad	0.173 "	Surface Mount	1.5 mA	27.03 °C/W	0.55 V
Analog Devices Inc LT1963ES8-2.5#PBF	125 °C	-40 °C	Enable	2.5 V	20 V	63 dB	1.5 A	120 mA	8-SO	Positive	1	Over Current, Over Temperature, Reverse Polarity		8-SOIC		Surface Mount	1.5 mA	27.03 °C/W	0.55 V	3.9 mm
Analog Devices Inc LT1963EFE-1.5#PBF	125 °C	-40 °C	Enable	1.5 V	20 V	63 dB	1.5 A	120 mA	16-TSSOP-EP	Positive	1	Over Current, Over Temperature, Reverse Polarity	4.4 mm	16-TSSOP, Exposed Pad	0.173 "	Surface Mount	1.5 mA	27.03 °C/W	0.55 V
Analog Devices Inc LT1963AET#06PBF	125 °C	-40 °C	Enable	1.21 V	20 V	63 dB	1.5 A	120 mA	TO-220-5 Flow 6	Positive	1	Over Current, Over Temperature, Reverse Polarity		TO-220-5		Through Hole	1.5 mA		0.55 V		Adjustable	20 V
Analog Devices Inc LT1963AET#PBF	125 °C	-40 °C	Enable	1.21 V	20 V	63 dB	1.5 A	120 mA	TO-220-5	Positive	1	Over Current, Over Temperature, Reverse Polarity		TO-220-5		Through Hole	1.5 mA		0.55 V		Adjustable	20 V
Analog Devices Inc LT1963AEST-3.3#PBF	125 °C	-40 °C	Enable	3.3 V	20 V	63 dB	1.5 A	120 mA	SOT-223-3	Positive	1	Over Current, Over Temperature, Reverse Polarity		TO-261-4, TO-261AA		Surface Mount	1.5 mA	27.03 °C/W	0.55 V
Analog Devices Inc LT1963AES8-1.8#TRPBF	125 °C	-40 °C	Enable	1.8 V	20 V	63 dB	1.5 A	120 mA	8-SO	Positive	1	Over Current, Over Temperature, Reverse Polarity		8-SOIC		Surface Mount	1.5 mA	27.03 °C/W	0.55 V	3.9 mm
Analog Devices Inc LT1963ES8-3.3#TRPBF	125 °C	-40 °C	Enable	3.3 V	20 V	63 dB	1.5 A	120 mA	8-SO	Positive	1	Over Current, Over Temperature, Reverse Polarity		8-SOIC		Surface Mount	1.5 mA	27.03 °C/W	0.55 V	3.9 mm
Analog Devices Inc LT1963ET-1.5#30PBF	125 °C	-40 °C	Enable	1.5 V	20 V	63 dB	1.5 A	120 mA	TO-220-5	Positive	1	Over Current, Over Temperature, Reverse Polarity		TO-220-5		Through Hole	1.5 mA	27.03 °C/W	0.55 V
Analog Devices Inc LT1963AEQ-2.5#TRPBF	125 °C	-40 °C	Enable	2.5 V	20 V	63 dB	1.5 A	120 mA	DDPAK-5	Positive	1	Over Current, Over Temperature, Reverse Polarity		D2PAK (5 Leads + Tab), TO-263-6, TO-263BA		Surface Mount	1.5 mA	27.03 °C/W	0.55 V
Analog Devices Inc LT1963EST-2.5#TRPBF	125 °C	-40 °C	Enable	2.5 V	20 V	63 dB	1.5 A	120 mA	SOT-223-3	Positive	1	Over Current, Over Temperature, Reverse Polarity		TO-261-4, TO-261AA		Surface Mount	1.5 mA	27.03 °C/W	0.55 V
Analog Devices Inc LT1963EST-1.8#PBF	125 °C	-40 °C	Enable	1.8 V	20 V	63 dB	1.5 A	120 mA	SOT-223-3	Positive	1	Over Current, Over Temperature, Reverse Polarity		TO-261-4, TO-261AA		Surface Mount	1.5 mA	27.03 °C/W	0.55 V
Analog Devices Inc LT1963EQ-3.3#TRPBF	125 °C	-40 °C	Enable	3.3 V	20 V	63 dB	1.5 A	120 mA	DDPAK-5	Positive	1	Over Current, Over Temperature, Reverse Polarity		D2PAK (5 Leads + Tab), TO-263-6, TO-263BA		Surface Mount	1.5 mA	27.03 °C/W	0.55 V
Analog Devices Inc LT1963ES8-3.3#PBF	125 °C	-40 °C	Enable	3.3 V	20 V	63 dB	1.5 A	120 mA	8-SO	Positive	1	Over Current, Over Temperature, Reverse Polarity		8-SOIC		Surface Mount	1.5 mA	27.03 °C/W	0.55 V	3.9 mm
Analog Devices Inc LT1963EQ-1.5#TRPBF	125 °C	-40 °C	Enable	1.5 V	20 V	63 dB	1.5 A	120 mA	DDPAK-5	Positive	1	Over Current, Over Temperature, Reverse Polarity		D2PAK (5 Leads + Tab), TO-263-6, TO-263BA		Surface Mount	1.5 mA	27.03 °C/W	0.55 V
Analog Devices Inc LT1963AES8-1.5#TRPBF	125 °C	-40 °C	Enable	1.5 V	20 V	63 dB	1.5 A	120 mA	8-SO	Positive	1	Over Current, Over Temperature, Reverse Polarity		8-SOIC		Surface Mount	1.5 mA	27.03 °C/W	0.55 V	3.9 mm
Analog Devices Inc LT1963AES8#TRPBF	125 °C	-40 °C	Enable	1.21 V	20 V	63 dB	1.5 A	120 mA	8-SO	Positive	1	Over Current, Over Temperature, Reverse Polarity		8-SOIC		Surface Mount	1.5 mA		0.55 V	3.9 mm	Adjustable	20 V
Analog Devices Inc LT1963EQ-2.5#PBF	125 °C	-40 °C	Enable	2.5 V	20 V	63 dB	1.5 A	120 mA	DDPAK-5	Positive	1	Over Current, Over Temperature, Reverse Polarity		D2PAK (5 Leads + Tab), TO-263-6, TO-263BA		Surface Mount	1.5 mA	27.03 °C/W	0.55 V
Analog Devices Inc LT1963AES8-1.8#PBF	125 °C	-40 °C	Enable	1.8 V	20 V	63 dB	1.5 A	120 mA	8-SO	Positive	1	Over Current, Over Temperature, Reverse Polarity		8-SOIC		Surface Mount	1.5 mA	27.03 °C/W	0.55 V	3.9 mm
Analog Devices Inc LT1963AEST-2.5#TRPBF	125 °C	-40 °C	Enable	2.5 V	20 V	63 dB	1.5 A	120 mA	SOT-223-3	Positive	1	Over Current, Over Temperature, Reverse Polarity		TO-261-4, TO-261AA		Surface Mount	1.5 mA	27.03 °C/W	0.55 V
Analog Devices Inc LT1963EFE-3.3#TRPBF	125 °C	-40 °C	Enable	3.3 V	20 V	63 dB	1.5 A	120 mA	16-TSSOP-EP	Positive	1	Over Current, Over Temperature, Reverse Polarity	4.4 mm	16-TSSOP, Exposed Pad	0.173 "	Surface Mount	1.5 mA	27.03 °C/W	0.55 V
Analog Devices Inc LT1963AEFE-1.8#TRPBF	125 °C	-40 °C	Enable	1.8 V	20 V	63 dB	1.5 A	120 mA	16-TSSOP-EP	Positive	1	Over Current, Over Temperature, Reverse Polarity	4.4 mm	16-TSSOP, Exposed Pad	0.173 "	Surface Mount	1.5 mA	27.03 °C/W	0.55 V
Analog Devices Inc LT1963AEST-1.8#TRPBF	125 °C	-40 °C	Enable	1.8 V	20 V	63 dB	1.5 A	120 mA	SOT-223-3	Positive	1	Over Current, Over Temperature, Reverse Polarity		TO-261-4, TO-261AA		Surface Mount	1.5 mA	27.03 °C/W	0.55 V
Analog Devices Inc LT1963EFE-1.8#TRPBF	125 °C	-40 °C	Enable	1.8 V	20 V	63 dB	1.5 A	120 mA	16-TSSOP-EP	Positive	1	Over Current, Over Temperature, Reverse Polarity	4.4 mm	16-TSSOP, Exposed Pad	0.173 "	Surface Mount	1.5 mA	27.03 °C/W	0.55 V
Analog Devices Inc LT1963AEFE#PBF	125 °C	-40 °C	Enable	1.21 V	20 V	63 dB	1.5 A	120 mA	16-TSSOP-EP	Positive	1	Over Current, Over Temperature, Reverse Polarity	4.4 mm	16-TSSOP, Exposed Pad	0.173 "	Surface Mount	1.5 mA		0.55 V		Adjustable	20 V
Analog Devices Inc LT1963AET-1.8#30PBF	125 °C	-40 °C	Enable	1.8 V	20 V	63 dB	1.5 A	120 mA	TO-220-5	Positive	1	Over Current, Over Temperature, Reverse Polarity		TO-220-5		Through Hole	1.5 mA	27.03 °C/W	0.55 V
Analog Devices Inc LT1963AES8-2.5#TRPBF	125 °C	-40 °C	Enable	2.5 V	20 V	63 dB	1.5 A	120 mA	8-SO	Positive	1	Over Current, Over Temperature, Reverse Polarity		8-SOIC		Surface Mount	1.5 mA	27.03 °C/W	0.55 V	3.9 mm
Analog Devices Inc LT1963ET#PBF	125 °C	-40 °C	Enable	1.21 V	20 V	63 dB	1.5 A	120 mA	TO-220-5	Positive	1	Over Current, Over Temperature, Reverse Polarity		TO-220-5		Through Hole	1.5 mA		0.55 V		Adjustable	20 V
Analog Devices Inc LT1963ET#31PBF	125 °C	-40 °C	Enable	1.21 V	20 V	63 dB	1.5 A	120 mA	TO-220-5 Flow 31	Positive	1	Over Current, Over Temperature, Reverse Polarity		TO-220-5 Formed Leads		Through Hole	1.5 mA		0.55 V		Adjustable	20 V
Analog Devices Inc LT1963ET-1.5#PBF	125 °C	-40 °C	Enable	1.5 V	20 V	63 dB	1.5 A	120 mA	TO-220-5	Positive	1	Over Current, Over Temperature, Reverse Polarity		TO-220-5		Through Hole	1.5 mA	27.03 °C/W	0.55 V
Analog Devices Inc LT1963ET-1.8#PBF	125 °C	-40 °C	Enable	1.8 V	20 V	63 dB	1.5 A	120 mA	TO-220-5	Positive	1	Over Current, Over Temperature, Reverse Polarity		TO-220-5		Through Hole	1.5 mA	27.03 °C/W	0.55 V
Analog Devices Inc LT1963AIT#PBF	125 °C	-40 °C	Enable	1.21 V	20 V	63 dB	1.5 A	120 mA	TO-220-5	Positive	1	Over Current, Over Temperature, Reverse Polarity		TO-220-5		Through Hole	1.5 mA		0.55 V		Adjustable	20 V
Analog Devices Inc LT1963ET-3.3#06PBF	125 °C	-40 °C	Enable	3.3 V	20 V	63 dB	1.5 A	120 mA	TO-220-5 Flow 6	Positive	1	Over Current, Over Temperature, Reverse Polarity		TO-220-5		Through Hole	1.5 mA	27.03 °C/W	0.55 V
Analog Devices Inc LT1963AEFE-2.5#PBF	125 °C	-40 °C	Enable	2.5 V	20 V	63 dB	1.5 A	120 mA	16-TSSOP-EP	Positive	1	Over Current, Over Temperature, Reverse Polarity	4.4 mm	16-TSSOP, Exposed Pad	0.173 "	Surface Mount	1.5 mA	27.03 °C/W	0.55 V
Analog Devices Inc LT1963AET-3.3#30PBF	125 °C	-40 °C	Enable	3.3 V	20 V	63 dB	1.5 A	120 mA	TO-220-5	Positive	1	Over Current, Over Temperature, Reverse Polarity		TO-220-5		Through Hole	1.5 mA	27.03 °C/W	0.55 V
Analog Devices Inc LT1963EFE#TRPBF	125 °C	-40 °C	Enable	1.21 V	20 V	63 dB	1.5 A	120 mA	16-TSSOP-EP	Positive	1	Over Current, Over Temperature, Reverse Polarity	4.4 mm	16-TSSOP, Exposed Pad	0.173 "	Surface Mount	1.5 mA		0.55 V		Adjustable	20 V
Analog Devices Inc LT1963EQ-3.3#PBF	125 °C	-40 °C	Enable	3.3 V	20 V	63 dB	1.5 A	120 mA	DDPAK-5	Positive	1	Over Current, Over Temperature, Reverse Polarity		D2PAK (5 Leads + Tab), TO-263-6, TO-263BA		Surface Mount	1.5 mA	27.03 °C/W	0.55 V
Analog Devices Inc LT1963EFE-1.8#PBF	125 °C	-40 °C	Enable	1.8 V	20 V	63 dB	1.5 A	120 mA	16-TSSOP-EP	Positive	1	Over Current, Over Temperature, Reverse Polarity	4.4 mm	16-TSSOP, Exposed Pad	0.173 "	Surface Mount	1.5 mA	27.03 °C/W	0.55 V
Analog Devices Inc LT1963AEQ-2.5#PBF	125 °C	-40 °C	Enable	2.5 V	20 V	63 dB	1.5 A	120 mA	DDPAK-5	Positive	1	Over Current, Over Temperature, Reverse Polarity		D2PAK (5 Leads + Tab), TO-263-6, TO-263BA		Surface Mount	1.5 mA	27.03 °C/W	0.55 V
Analog Devices Inc LT1963AEST-1.5#TRPBF	125 °C	-40 °C	Enable	1.5 V	20 V	63 dB	1.5 A	120 mA	SOT-223-3	Positive	1	Over Current, Over Temperature, Reverse Polarity		TO-261-4, TO-261AA		Surface Mount	1.5 mA	27.03 °C/W	0.55 V
Analog Devices Inc LT1963EQ#PBF	125 °C	-40 °C	Enable	1.21 V	20 V	63 dB	1.5 A	120 mA	DDPAK-5	Positive	1	Over Current, Over Temperature, Reverse Polarity		D2PAK (5 Leads + Tab), TO-263-6, TO-263BA		Surface Mount	1.5 mA		0.55 V		Adjustable	20 V
Analog Devices Inc LT1963EST-3.3#PBF	125 °C	-40 °C	Enable	3.3 V	20 V	63 dB	1.5 A	120 mA	SOT-223-3	Positive	1	Over Current, Over Temperature, Reverse Polarity		TO-261-4, TO-261AA		Surface Mount	1.5 mA	27.03 °C/W	0.55 V
Analog Devices Inc LT1963AMPQ#TRPBF	125 °C	-55 °C	Enable	1.21 V	20 V	63 dB	1.5 A	120 mA	DDPAK-5	Positive	1	Over Current, Over Temperature, Reverse Polarity		D2PAK (5 Leads + Tab), TO-263-6, TO-263BA		Surface Mount	1.5 mA		0.55 V		Adjustable	20 V
Analog Devices Inc LT1963EFE-2.5#TRPBF	125 °C	-40 °C	Enable	2.5 V	20 V	63 dB	1.5 A	120 mA	16-TSSOP-EP	Positive	1	Over Current, Over Temperature, Reverse Polarity	4.4 mm	16-TSSOP, Exposed Pad	0.173 "	Surface Mount	1.5 mA	27.03 °C/W	0.55 V
Analog Devices Inc LT1963AET-1.8#06PBF	125 °C	-40 °C	Enable	1.8 V	20 V	63 dB	1.5 A	120 mA	TO-220-5 Flow 6	Positive	1	Over Current, Over Temperature, Reverse Polarity		TO-220-5		Through Hole	1.5 mA	27.03 °C/W	0.55 V
Analog Devices Inc LT1963AEFE-1.8#PBF	125 °C	-40 °C	Enable	1.8 V	20 V	63 dB	1.5 A	120 mA	16-TSSOP-EP	Positive	1	Over Current, Over Temperature, Reverse Polarity	4.4 mm	16-TSSOP, Exposed Pad	0.173 "	Surface Mount	1.5 mA	27.03 °C/W	0.55 V
Analog Devices Inc LT1963AEST-2.5#PBF	125 °C	-40 °C	Enable	2.5 V	20 V	63 dB	1.5 A	120 mA	SOT-223-3	Positive	1	Over Current, Over Temperature, Reverse Polarity		TO-261-4, TO-261AA		Surface Mount	1.5 mA	27.03 °C/W	0.55 V
Analog Devices Inc LT1963EST-1.5#TRPBF	125 °C	-40 °C	Enable	1.5 V	20 V	63 dB	1.5 A	120 mA	SOT-223-3	Positive	1	Over Current, Over Temperature, Reverse Polarity		TO-261-4, TO-261AA		Surface Mount	1.5 mA	27.03 °C/W	0.55 V
Analog Devices Inc LT1963AET-1.5#PBF	125 °C	-40 °C	Enable	1.5 V	20 V	63 dB	1.5 A	120 mA	TO-220-5	Positive	1	Over Current, Over Temperature, Reverse Polarity		TO-220-5		Through Hole	1.5 mA	27.03 °C/W	0.55 V
Analog Devices Inc LT1963EQ-1.8#PBF	125 °C	-40 °C	Enable	1.8 V	20 V	63 dB	1.5 A	120 mA	DDPAK-5	Positive	1	Over Current, Over Temperature, Reverse Polarity		D2PAK (5 Leads + Tab), TO-263-6, TO-263BA		Surface Mount	1.5 mA	27.03 °C/W	0.55 V
Analog Devices Inc LT1963EFE-3.3#PBF	125 °C	-40 °C	Enable	3.3 V	20 V	63 dB	1.5 A	120 mA	16-TSSOP-EP	Positive	1	Over Current, Over Temperature, Reverse Polarity	4.4 mm	16-TSSOP, Exposed Pad	0.173 "	Surface Mount	1.5 mA	27.03 °C/W	0.55 V
Analog Devices Inc LT1963AET-1.5#06PBF	125 °C	-40 °C	Enable	1.5 V	20 V	63 dB	1.5 A	120 mA	TO-220-5 Flow 6	Positive	1	Over Current, Over Temperature, Reverse Polarity		TO-220-5		Through Hole	1.5 mA	27.03 °C/W	0.55 V
Analog Devices Inc LT1963AMPQ#PBF	125 °C	-55 °C	Enable	1.21 V	20 V	63 dB	1.5 A	120 mA	DDPAK-5	Positive	1	Over Current, Over Temperature, Reverse Polarity		D2PAK (5 Leads + Tab), TO-263-6, TO-263BA		Surface Mount	1.5 mA		0.55 V		Adjustable	20 V
Analog Devices Inc LT1963ES8#TRPBF	125 °C	-40 °C	Enable	1.21 V	20 V	63 dB	1.5 A	120 mA	8-SO	Positive	1	Over Current, Over Temperature, Reverse Polarity		8-SOIC		Surface Mount	1.5 mA		0.55 V	3.9 mm	Adjustable	20 V
Analog Devices Inc LT1963AIFE#TRPBF	125 °C	-40 °C	Enable	1.21 V	20 V	63 dB	1.5 A	120 mA	16-TSSOP-EP	Positive	1	Over Current, Over Temperature, Reverse Polarity	4.4 mm	16-TSSOP, Exposed Pad	0.173 "	Surface Mount	1.5 mA		0.55 V		Adjustable	20 V
Analog Devices Inc LT1963EQ-1.5#PBF	125 °C	-40 °C	Enable	1.5 V	20 V	63 dB	1.5 A	120 mA	DDPAK-5	Positive	1	Over Current, Over Temperature, Reverse Polarity		D2PAK (5 Leads + Tab), TO-263-6, TO-263BA		Surface Mount	1.5 mA	27.03 °C/W	0.55 V
Analog Devices Inc LT1963EST-2.5#PBF	125 °C	-40 °C	Enable	2.5 V	20 V	63 dB	1.5 A	120 mA	SOT-223-3	Positive	1	Over Current, Over Temperature, Reverse Polarity		TO-261-4, TO-261AA		Surface Mount	1.5 mA	27.03 °C/W	0.55 V
Analog Devices Inc LT1963AEQ-1.8#TRPBF	125 °C	-40 °C	Enable	1.8 V	20 V	63 dB	1.5 A	120 mA	DDPAK-5	Positive	1	Over Current, Over Temperature, Reverse Polarity		D2PAK (5 Leads + Tab), TO-263-6, TO-263BA		Surface Mount	1.5 mA	27.03 °C/W	0.55 V
Analog Devices Inc LT1963ES8-2.5#TRPBF	125 °C	-40 °C	Enable	2.5 V	20 V	63 dB	1.5 A	120 mA	8-SO	Positive	1	Over Current, Over Temperature, Reverse Polarity		8-SOIC		Surface Mount	1.5 mA	27.03 °C/W	0.55 V	3.9 mm
Analog Devices Inc LT1963ET#30PBF	125 °C	-40 °C	Enable	1.21 V	20 V	63 dB	1.5 A	120 mA	TO-220-5 Flow 30	Positive	1	Over Current, Over Temperature, Reverse Polarity		TO-220-5 Formed Leads		Through Hole	1.5 mA		0.55 V		Adjustable	20 V

Key Features

• Optimized for Fast Transient Response

• Output Current: 1.5A

• Dropout Voltage: 340mV

• Low Noise: 40μVRMS(10Hz to 100kHz)

• 1mA Quiescent Current

• No Protection Diodes Needed

• Controlled Quiescent Current in Dropout

• Fixed Output Voltages: 1.5V, 1.8V, 2.5V, 3.3V

• Adjustable Output from 1.21V to 20V

• <1μA Quiescent Current in Shutdown

• Stable with 10μF Output Capacitor

• Reverse Battery Protection

• No Reverse Current

• Thermal Limiting

• 5-Lead TO-220, DD, 3-Lead SOT-223, 8-Lead SO and 16-Lead TSSOP Packages

Description

The LT1963 series are low dropout regulators optimized for fast transient response. The devices are capable of supplying 1.5A of output current with a dropout voltage of 340mV. Operating quiescent current is 1mA, dropping to <1μA in shutdown. Quiescent current is well controlled; it does not rise in dropout as it does with many other regulators. In addition to fast transient response, the LT1963 regulators have very low output noise which makes them ideal for sensitive RF supply applications.Output voltage range is from 1.21V to 20V. The LT1963 regulators are stable with output capacitors as low as 10µF. Internal protection circuitry includes reverse battery protection, current limiting, thermal limiting and reverse current protection. The devices are available in fixed output voltages of 1.5V, 1.8V, 2.5V, 3.3V and as an adjustable device with a 1.21V reference voltage. The LT1963 regulators are available in 5-lead TO-220, DD, 3-lead SOT-223, 8-lead SO, and Exposed Pad 16-lead TSSOP packages.FeaturesLT1963-LT1963AStable With Ceramic Output CapacitorsApplications3.3V to 2.5V Logic Power SuppliesPost Regulator for Switching Supplies