Datasheet TPS7A02 (Texas Instruments) - 6

TPS7A02
SBVS277 – JULY 2019
www.ti.com 6.5 Electrical Characteristics
Specified at TJ = –40°C to +125°C, VIN = VOUT(nom) + 0.5 V or 2.0 V (whichever is greater), IOUT = 1 mA, VEN = VIN, and CIN = COUT = 1 µF (unless otherwise noted). Typical values are at TJ = 25°C.
PARAMETER TEST CONDITIONS MIN TYP MAX UNIT
TJ = 25°C, VOUT ≥ 1.0 V, 1 µA ≤ IOUT ≤ 1 mA –1 1 % Nominal accuracy TJ = 25°C; VOUT < 1.0 V –10 10 mV TJ = –40°C to +85°C –1.5 1.5 VOUT ≥ 1.0 V % Accuracy over TJ = –40°C to +125°C –3 3 temperature TJ = –40°C to +85°C –15 15 VOUT < 1.0 V mV TJ = –40°C to +125°C –30 30 V ΔV OUT(nom) + 0.5 V ≤ VIN ≤ 6.0 V (1) TJ = –40°C to +85°C 2.2 3 OUT/ΔVIN Line regulation mV/V TJ = –40°C to +125°C 4 1 mA ≤ I T OUT ≤ 200 mA, J = –40°C to +85°C 20 38 ΔVOUT(ΔIOUT) Load regulation(2) VIN = VOUT(nom) + 0.5 V(1) mV TJ = –40°C to +125°C 50 TJ = 25°C 25 46 I nA
ADV
GND Ground current IOUT = 0 mA TJ = –40°C to +85°C 60 5 µA ≤ I 1 Ground current OUT < 1 mA IGND/IOUT efficiency vs load 1 mA ≤ I T OUT ≤ 100 mA J = 25°C 0.25 %
ANCEINFORMA
current IOUT > 100 mA 0.15 Ground current in I I OUT = 0 mA, GND(DO) T dropout(3) 1.5 V ≤ V J = –40°C to +85°C 25 120 nA IN < 6.0 V, ISHDN Shutdown current VEN = 0 V, 1.5 V ≤ VIN ≤ 6.0 V, TJ = 25°C 3 10 nA ICL Output current limit VOUT = 90% × VOUT(nom), VIN = VOUT(nom) + VDO(max) + 0.1 V 240 450 650 mA Short-circuit current ISC V limit OUT = 0 V 65 mA 0.8 V ≤ VOUT < 1.0 V 1046 1.0 V ≤ VOUT < 1.2 V 876 1.2 V ≤ VOUT < 1.5 V 670 TJ = –40°C to +85°C 1.5 V ≤ VOUT < 1.8 V 446
TION
1.8 V ≤ VOUT < 2.5 V 400 2.5 V ≤ VOUT < 3.3 V 250 3.3 V ≤ VOUT < 5.0 V 204 VDO Dropout voltage(4) mV 0.8 V ≤ VOUT < 1.0 V 1114 1.0 V ≤ VOUT < 1.2 V 953 1.2 V ≤ VOUT < 1.5 V 803 TJ = –40°C to +125°C 1.5 V ≤ VOUT < 1.8 V 535 1.8 V ≤ VOUT < 2.5 V 430 2.5 V ≤ VOUT < 3.3 V 299 3.3 V ≤ VOUT < 5.0 V 245 Power-supply PSRR f = 1 kHz, I rejection ratio OUT = 30 mA 55 dB Output voltage VN BW = 10 Hz to 100 kHz, V noise OUT = 0.8 V, IOUT = 30 mA 115 µVRMS VIN rising 1.23 1.3 1.47 VUVLO UVLO threshold V VIN falling 1.17 1.12 1.26 VUVLO(HYST) UVLO hysteresis VIN hysteresis 180 mV (1) VIN = 2.0 V for VOUT ≤ 0.9 V. (2) Load Regulation is normalized to the output voltage at IOUT = 1 mA. (3) VIN = 95% x VOUT(NOM). (4) Dropout is measured by ramping VIN down until VOUT = VOUT(nom) x 95%, with IOUT = 200 mA. 6 Submit Documentation Feedback Copyright © 2019, Texas Instruments Incorporated 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