Datasheet TPS7A02 (Texas Instruments)
| 制造商 | Texas Instruments |
| 描述 | Nanopower IQ, 25-nA, 200-mA, Low-Dropout Voltage Regulator With Fast Transient Response |
| 页数 / 页 | 23 / 1 — TPS7A02. TPS7A02 Nanopower IQ, 25-nA, 200-mA, Low-Dropout Voltage … |
| 文件格式/大小 | PDF / 1.5 Mb |
| 文件语言 | 英语 |
TPS7A02. TPS7A02 Nanopower IQ, 25-nA, 200-mA, Low-Dropout Voltage Regulator With Fast. Transient Response. 1 Features
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TPS7A02
SBVS277 – JULY 2019
TPS7A02 Nanopower IQ, 25-nA, 200-mA, Low-Dropout Voltage Regulator With Fast Transient Response 1 Features 3 Description
• Ultra-low I The TPS7A02 is an ultra-small, ultra-low quiescent 1 Q: 25 nA (typ), even in dropout current low-dropout linear regulator (LDO) that can • Shutdown IQ: 3 nA (typ) source 200 mA with excellent transient performance. • Excellent transient response (1 mA to 50 mA) The TPS7A02, with an ultra-low I – < 10-µs settling time Q of 25 nA, is designed specifically for applications where very-low – 100-mV undershoot quiescent current is a critical parameter. This device • Packages: maintains low IQ consumption even in dropout mode to further increase the battery life. When in shutdown – 1.0-mm × 1.0-mm X2SON or disabled mode, the device consumes ultra-low, – SOT23-5 (preview) 3-nA IQ that helps increase the shelf life of the – 0.65-mm x 0.65-mm DSBGA (preview) battery. The TPS7A02 has an output range of 0.8 V to 5.0 V available in 50-mV steps to support the lower • Input voltage range: 1.5 V to 6.0 V core voltages of modern microcontrollers (MCUs). • Output voltage range: 0.8 V to 5.0 V (fixed) The TPS7A02 features a smart enable circuit with an • Output accuracy: 1.5% over temperature internally controlled pulldown resistor that keeps the • Smart enable pulldown LDO disabled even when the EN pin is left floating
TION
• Very low dropout: and helps minimize the external components used to – 205 mV (max) at 200 mA (V pulldown the EN pin. This circuit also helps minimize OUT = 3.3 V) the current drawn through the external pulldown • Stable with a 1-µF or larger capacitor circuit when the device is enabled.
2 Applications
The TPS7A02 is fully specified for TJ = –40°C to +125°C operation. • Wearables electronics • Thermostats, smoke and heat detectors
Device Information(1)
• Smart meters
PART NUMBER PACKAGE BODY SIZE (NOM)
• Wireless IOTs X2SON (4) 1.00 mm × 1.00 mm • Portable medical devices TPS7A02 DSBGA (4)(2) 0.65 mm × 0.65 mm SOT-23 (5)(2) 2.90 mm × 1.60 mm
ANCEINFORMA
• Building security and surveillance systems • Electronic point of sale (EPOS) (1) For all available packages, see the package option addendum at the end of the data sheet. (2) Preview package.
ADV Load Transient Response Quiescent Current vs Input Voltage (VIN = VOUT + 1 V, CIN = 0.47 µF, COUT = 1 µF, IOUT = (IOUT = 0 A, COUT = 1 µF) 1 mA to 50 mA in 1 µs)
240 150 400 220 TJ -55°C 0°C 85°C 100 IOUT 350 AC-Coupled Output Voltage (mV) V 200 -40°C 25°C 125°C OUT 50 300 ) 180 ) 0 250 t (nA 160 -50 200 rren 140 nt (mA -100 150 120 t Cu -150 100 n 100 -200 50 80 -250 0 Quiesce 60 Output Curre -300 -50 40 -350 -100 20 -400 -150 0 -450 -200 1.5 2 2.5 3 3.5 4 4.5 5 5.5 0 50 100 150 200 250 300 350 400 450 500 Input Voltage (V) Time (µs) D002 1 An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications, intellectual property matters and other important disclaimers. ADVANCE INFORMATION for pre-production products; subject to change without notice. Document Outline 1 Features 2 Applications 3 Description Table of Contents 4 Revision History 5 Pin Configuration and Functions 6 Specifications 6.1 Absolute Maximum Ratings 6.2 ESD Ratings 6.3 Recommended Operating Conditions 6.4 Thermal Information 6.5 Electrical Characteristics 6.6 Switching Characteristics 6.7 Typical Characteristics 7 Detailed Description 7.1 Overview 7.2 Functional Block Diagram 7.3 Feature Description 7.3.1 Excellent Transient Response 7.3.2 Active Discharge (P-Version Only) 7.3.3 Low IQ in Dropout 7.3.4 Smart Enable 7.3.5 Dropout Voltage 7.3.6 Foldback Current Limit 7.3.7 Undervoltage Lockout (UVLO) 7.3.8 Thermal Shutdown 7.4 Device Functional Modes 7.4.1 Device Functional Mode Comparison 7.4.2 Normal Operation 7.4.3 Dropout Operation 7.4.4 Disabled 8 Application and Implementation 8.1 Application Information 8.1.1 Recommended Capacitor Types 8.1.2 Input and Output Capacitor Requirements 8.1.3 Load Transient Response 8.1.4 Undervoltage Lockout (UVLO) Operation 8.1.5 Power Dissipation (PD) 8.1.5.1 Estimating Junction Temperature 8.1.5.2 Recommended Area for Continuous Operation 8.2 Typical Application 8.2.1 Design Requirements 8.2.2 Detailed Design Procedure 9 Power Supply Recommendations 10 Layout 10.1 Layout Guidelines 10.2 Layout Examples 11 Device and Documentation Support 11.1 Device Support 11.1.1 Device Nomenclature 11.2 Receiving Notification of Documentation Updates 11.3 Community Resources 11.4 Trademarks 11.5 Electrostatic Discharge Caution 11.6 Glossary 12 Mechanical, Packaging, and Orderable Information
TPS7A02
SBVS277 – JULY 2019
TPS7A02 Nanopower IQ, 25-nA, 200-mA, Low-Dropout Voltage Regulator With Fast Transient Response 1 Features 3 Description
• Ultra-low I The TPS7A02 is an ultra-small, ultra-low quiescent 1 Q: 25 nA (typ), even in dropout current low-dropout linear regulator (LDO) that can • Shutdown IQ: 3 nA (typ) source 200 mA with excellent transient performance. • Excellent transient response (1 mA to 50 mA) The TPS7A02, with an ultra-low I – < 10-µs settling time Q of 25 nA, is designed specifically for applications where very-low – 100-mV undershoot quiescent current is a critical parameter. This device • Packages: maintains low IQ consumption even in dropout mode to further increase the battery life. When in shutdown – 1.0-mm × 1.0-mm X2SON or disabled mode, the device consumes ultra-low, – SOT23-5 (preview) 3-nA IQ that helps increase the shelf life of the – 0.65-mm x 0.65-mm DSBGA (preview) battery. The TPS7A02 has an output range of 0.8 V to 5.0 V available in 50-mV steps to support the lower • Input voltage range: 1.5 V to 6.0 V core voltages of modern microcontrollers (MCUs). • Output voltage range: 0.8 V to 5.0 V (fixed) The TPS7A02 features a smart enable circuit with an • Output accuracy: 1.5% over temperature internally controlled pulldown resistor that keeps the • Smart enable pulldown LDO disabled even when the EN pin is left floating
TION
• Very low dropout: and helps minimize the external components used to – 205 mV (max) at 200 mA (V pulldown the EN pin. This circuit also helps minimize OUT = 3.3 V) the current drawn through the external pulldown • Stable with a 1-µF or larger capacitor circuit when the device is enabled.
2 Applications
The TPS7A02 is fully specified for TJ = –40°C to +125°C operation. • Wearables electronics • Thermostats, smoke and heat detectors
Device Information(1)
• Smart meters
PART NUMBER PACKAGE BODY SIZE (NOM)
• Wireless IOTs X2SON (4) 1.00 mm × 1.00 mm • Portable medical devices TPS7A02 DSBGA (4)(2) 0.65 mm × 0.65 mm SOT-23 (5)(2) 2.90 mm × 1.60 mm
ANCEINFORMA
• Building security and surveillance systems • Electronic point of sale (EPOS) (1) For all available packages, see the package option addendum at the end of the data sheet. (2) Preview package.
ADV Load Transient Response Quiescent Current vs Input Voltage (VIN = VOUT + 1 V, CIN = 0.47 µF, COUT = 1 µF, IOUT = (IOUT = 0 A, COUT = 1 µF) 1 mA to 50 mA in 1 µs)
240 150 400 220 TJ -55°C 0°C 85°C 100 IOUT 350 AC-Coupled Output Voltage (mV) V 200 -40°C 25°C 125°C OUT 50 300 ) 180 ) 0 250 t (nA 160 -50 200 rren 140 nt (mA -100 150 120 t Cu -150 100 n 100 -200 50 80 -250 0 Quiesce 60 Output Curre -300 -50 40 -350 -100 20 -400 -150 0 -450 -200 1.5 2 2.5 3 3.5 4 4.5 5 5.5 0 50 100 150 200 250 300 350 400 450 500 Input Voltage (V) Time (µs) D002 1 An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications, intellectual property matters and other important disclaimers. ADVANCE INFORMATION for pre-production products; subject to change without notice. Document Outline 1 Features 2 Applications 3 Description Table of Contents 4 Revision History 5 Pin Configuration and Functions 6 Specifications 6.1 Absolute Maximum Ratings 6.2 ESD Ratings 6.3 Recommended Operating Conditions 6.4 Thermal Information 6.5 Electrical Characteristics 6.6 Switching Characteristics 6.7 Typical Characteristics 7 Detailed Description 7.1 Overview 7.2 Functional Block Diagram 7.3 Feature Description 7.3.1 Excellent Transient Response 7.3.2 Active Discharge (P-Version Only) 7.3.3 Low IQ in Dropout 7.3.4 Smart Enable 7.3.5 Dropout Voltage 7.3.6 Foldback Current Limit 7.3.7 Undervoltage Lockout (UVLO) 7.3.8 Thermal Shutdown 7.4 Device Functional Modes 7.4.1 Device Functional Mode Comparison 7.4.2 Normal Operation 7.4.3 Dropout Operation 7.4.4 Disabled 8 Application and Implementation 8.1 Application Information 8.1.1 Recommended Capacitor Types 8.1.2 Input and Output Capacitor Requirements 8.1.3 Load Transient Response 8.1.4 Undervoltage Lockout (UVLO) Operation 8.1.5 Power Dissipation (PD) 8.1.5.1 Estimating Junction Temperature 8.1.5.2 Recommended Area for Continuous Operation 8.2 Typical Application 8.2.1 Design Requirements 8.2.2 Detailed Design Procedure 9 Power Supply Recommendations 10 Layout 10.1 Layout Guidelines 10.2 Layout Examples 11 Device and Documentation Support 11.1 Device Support 11.1.1 Device Nomenclature 11.2 Receiving Notification of Documentation Updates 11.3 Community Resources 11.4 Trademarks 11.5 Electrostatic Discharge Caution 11.6 Glossary 12 Mechanical, Packaging, and Orderable Information