Datasheet ADP5023 (Analog Devices) - 3
| 制造商 | Analog Devices |
| 描述 | Dual 3 MHz, 800 mA Buck Regulator with One 300 mA LDO |
| 页数 / 页 | 28 / 3 — Data Sheet. ADP5023. SPECIFICATIONS GENERAL SPECIFICATIONS. Table 2. … |
| 修订版 | F |
| 文件格式/大小 | PDF / 773 Kb |
| 文件语言 | 英语 |
Data Sheet. ADP5023. SPECIFICATIONS GENERAL SPECIFICATIONS. Table 2. Parameter Symbol. Test. Conditions/Comments. Min. Typ. Max. Unit
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Data Sheet ADP5023 SPECIFICATIONS GENERAL SPECIFICATIONS
VAVIN = VIN1 = VIN2 = 2.3 V to 5.5 V; VIN3 = 1.7 V to 5.5 V; TJ = −40°C to +125°C for minimum/maximum specifications, and TA = 25°C for typical specifications, unless otherwise noted.
Table 2. Parameter Symbol Test Conditions/Comments Min Typ Max Unit
INPUT VOLTAGE RANGE VAVIN, VIN1, VIN2 2.3 5.5 V THERMAL SHUTDOWN Threshold TSSD TJ rising 150 °C Hysteresis TSSD-HYS 20 °C START-UP TIME1 BUCK1, LDO tSTART1 250 μs BUCK2 tSTART2 300 μs EN1, EN2, EN3, MODE INPUTS Input Logic High VIH 1.1 V Input Logic Low VIL 0.4 V Input Leakage Current VI-LEAKAGE 0.05 1 μA INPUT CURRENT All Channels Enabled ISTBY-NOSW No load, no buck switching 108 175 μA All Channels Disabled ISHUTDOWN TJ = −40°C to +85°C 0.3 1 μA VIN1 UNDERVOLTAGE LOCKOUT High UVLO Input Voltage Rising UVLOVIN1RISE 3.9 V High UVLO Input Voltage Falling UVLOVIN1FALL 3.1 V Low UVLO Input Voltage Rising UVLOVIN1RISE 2.275 V Low UVLO Input Voltage Falling UVLOVIN1FALL 1.95 V 1 Start-up time is defined as the time from EN1 = EN2 = EN3 from 0 V to VAVIN to VOUT1, VOUT2, and VOUT3 reaching 90% of their nominal level. Start-up times are shorter for individual channels if another channel is already enabled. See the Typical Performance Characteristics section for more information. Rev. F | Page 3 of 28 Document Outline Features Applications General Description Typical Application Circuit Table of Contents Revision History Specifications General Specifications BUCK1 and BUCK2 Specifications LDO Specifications Input and Output Capacitor, Recommended Specifications Absolute Maximum Ratings Thermal Resistance ESD Caution Pin Configuration and Function Descriptions Typical Performance Characteristics Theory of Operation Power Management Unit Thermal Protection Undervoltage Lockout Enable/Shutdown BUCK1 and BUCK2 Control Scheme PWM Mode Power Save Mode (PSM) PSM Current Threshold Oscillator/Phasing of Inductor Switching Short-Circuit Protection Soft Start Current Limit 100% Duty Operation Active Pull-Downs LDO Applications Information Buck External Component Selection Feedback Resistors Inductor Output Capacitor Input Capacitor LDO External Component Selection Feedback Resistors Output Capacitor Input Bypass Capacitor Input and Output Capacitor Properties Power Dissipation and Thermal Considerations Buck Regulator Power Dissipation LDO Regulator Power Dissipation Junction Temperature PCB Layout Guidelines Typical Application Schematics Bill of Materials Outline Dimensions Ordering Guide
Data Sheet ADP5023 SPECIFICATIONS GENERAL SPECIFICATIONS
VAVIN = VIN1 = VIN2 = 2.3 V to 5.5 V; VIN3 = 1.7 V to 5.5 V; TJ = −40°C to +125°C for minimum/maximum specifications, and TA = 25°C for typical specifications, unless otherwise noted.
Table 2. Parameter Symbol Test Conditions/Comments Min Typ Max Unit
INPUT VOLTAGE RANGE VAVIN, VIN1, VIN2 2.3 5.5 V THERMAL SHUTDOWN Threshold TSSD TJ rising 150 °C Hysteresis TSSD-HYS 20 °C START-UP TIME1 BUCK1, LDO tSTART1 250 μs BUCK2 tSTART2 300 μs EN1, EN2, EN3, MODE INPUTS Input Logic High VIH 1.1 V Input Logic Low VIL 0.4 V Input Leakage Current VI-LEAKAGE 0.05 1 μA INPUT CURRENT All Channels Enabled ISTBY-NOSW No load, no buck switching 108 175 μA All Channels Disabled ISHUTDOWN TJ = −40°C to +85°C 0.3 1 μA VIN1 UNDERVOLTAGE LOCKOUT High UVLO Input Voltage Rising UVLOVIN1RISE 3.9 V High UVLO Input Voltage Falling UVLOVIN1FALL 3.1 V Low UVLO Input Voltage Rising UVLOVIN1RISE 2.275 V Low UVLO Input Voltage Falling UVLOVIN1FALL 1.95 V 1 Start-up time is defined as the time from EN1 = EN2 = EN3 from 0 V to VAVIN to VOUT1, VOUT2, and VOUT3 reaching 90% of their nominal level. Start-up times are shorter for individual channels if another channel is already enabled. See the Typical Performance Characteristics section for more information. Rev. F | Page 3 of 28 Document Outline Features Applications General Description Typical Application Circuit Table of Contents Revision History Specifications General Specifications BUCK1 and BUCK2 Specifications LDO Specifications Input and Output Capacitor, Recommended Specifications Absolute Maximum Ratings Thermal Resistance ESD Caution Pin Configuration and Function Descriptions Typical Performance Characteristics Theory of Operation Power Management Unit Thermal Protection Undervoltage Lockout Enable/Shutdown BUCK1 and BUCK2 Control Scheme PWM Mode Power Save Mode (PSM) PSM Current Threshold Oscillator/Phasing of Inductor Switching Short-Circuit Protection Soft Start Current Limit 100% Duty Operation Active Pull-Downs LDO Applications Information Buck External Component Selection Feedback Resistors Inductor Output Capacitor Input Capacitor LDO External Component Selection Feedback Resistors Output Capacitor Input Bypass Capacitor Input and Output Capacitor Properties Power Dissipation and Thermal Considerations Buck Regulator Power Dissipation LDO Regulator Power Dissipation Junction Temperature PCB Layout Guidelines Typical Application Schematics Bill of Materials Outline Dimensions Ordering Guide