Datasheet MAX20343, MAX20344 (Maxim) - 9
| 制造商 | Maxim |
| 描述 | Ultra-Low Quiescent Current, Low Noise 3.5W Buck-Boost Regulator |
| 页数 / 页 | 43 / 9 — Electrical Characteristics (continued). PARAMETER. SYMBOL. CONDITIONS. … |
| 文件格式/大小 | PDF / 1.7 Mb |
| 文件语言 | 英语 |
Electrical Characteristics (continued). PARAMETER. SYMBOL. CONDITIONS. MIN. TYP. MAX. UNITS. DIGITAL
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MAX20343/MAX20344 Ultra-Low Quiescent Current, Low Noise 3.5W Buck-Boost Regulator
Electrical Characteristics (continued)
(VIN = +1.8V to +5.5V, CIN = 5µF, COUT = 8µF, TJ = -40°C to +125°C, unless otherwise noted. Typical values are at TA = +25°C, VIN = +3.7V, L = 1μH, Limits are 100% tested at TA = +25°C.) (Note 1)
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
V Line Transient OUT = 3.4V, VIN from 3.4V to 2.9V, 1μs V fall time, I 0 mV Response LINE_TRAN LOAD = 750mA, BBstIntegEn = 1, SwoFrcIN = 0 Load Transient V V OUT = 5V, VIN = 3.7V, ILOAD = 10µA to -150 mV Response LOAD_TRAN 700mA, BBstIntegEn = 1 Input Supply Current mA/ I During Startup IN_STUP VIN = 3.6V, VOUT = 5V, ILOAD = 0 1 COUT(µF) Maximum Output Power IPWR_MAX_ST BBstFETScale = 0 400 600 mW During Startup (Note 3) UP BBstFETScale = 1 200 300 I2C controlled 9.6 Time from V Startup Time t OUT = STARTUP ms 0V to final value RSEL, 32 BBstRampEn = 0 PGOOD Threshold VPGOOD 84.7 %VOUT PGOOD Threshold V Hysteresis PGOOD_HYS 2.25 %VOUT Active Discharge I Current ACTD 20 mA Passive Discharge R Resistance PSVD 1.2 kΩ Soft-start active, SwoFrcIN = 1, or 1.836 VOUT set below 3.3V Input UVLO Rising V V Threshold IN_UVLO_R VIN rising VOUT set higher than 3.3V, SwoFrcIN = 0, soft- 2.185 start period complete Soft-start active, SwoFrcIN = 1, or 1.782 VOUT set below 3.3V Input UVLO Falling V V Threshold IN_UVLO_F VIN falling VOUT set higher than 3.3V, SwoFrcIN = 0, soft- 2.101 start period complete Output UVLO Falling V Threshold OUT_UVLO_F VOUT falling 1.873 V Output UVLO Rising V Threshold OUT_UVLO_R VOUT rising 1.963 V
DIGITAL
SDA, EN, SCL, INT, PGOOD, INGOOD I FAST, RSEL Input LK_IO TJ = +25°C -1 +1 µA Leakage Current www.maximintegrated.com Maxim Integrated | 9 Document Outline General Description Applications Benefits and Features Simplified Block Diagram Absolute Maximum Ratings Package Information 16-BUMP WLP 12-Pin FC2QFN Electrical Characteristics Electrical Characteristics (continued) Typical Operating Characteristics Typical Operating Characteristics (continued) Pin Configurations I2C-Controlled WLP Single-Pin-Enabled WLP I2C-Controlled FC2QFN Single-Pin-Enabled FC2QFN Pin Description Pin Description (continued) Functional Diagram Functional Diagram Detailed Description Startup Voltage Architectural Description Switching Phases Buck-Boost Mode Buck-Only Mode Inductor Peak and Valley Current Limits Integrator Control Loop Disable Input Operating Voltage Output Operating Power and Other Optimizations Device Control I2C-Controlled Single-Pin-Enabled Dynamic Voltage Scaling (DVS) RSEL Voltage Setting Register Map MAX20343/MAX20344 Register Details ChipID (0x00) BBstCfg0 (0x01) BBstVSet (0x02) BBstISet (0x03) BBstCfg1 (0x04) Status (0x05) Int (0x06) Mask (0x07) LockMsk (0x50) LockUnlock (0x51) Applications Information Input and Output Capacitance Inductor Selection Soft-Start I2C Interface Slave Address Start, Stop, and Repeated Start Conditions Bit Transfer Single-Byte Write Burst Write Single Byte Read Burst Read Acknowledge Bits Register Values Typical Application Circuits Optical Heart Rate LED Supply LPWAN Radio Supply Ordering Information Revision History
Electrical Characteristics (continued)
(VIN = +1.8V to +5.5V, CIN = 5µF, COUT = 8µF, TJ = -40°C to +125°C, unless otherwise noted. Typical values are at TA = +25°C, VIN = +3.7V, L = 1μH, Limits are 100% tested at TA = +25°C.) (Note 1)
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
V Line Transient OUT = 3.4V, VIN from 3.4V to 2.9V, 1μs V fall time, I 0 mV Response LINE_TRAN LOAD = 750mA, BBstIntegEn = 1, SwoFrcIN = 0 Load Transient V V OUT = 5V, VIN = 3.7V, ILOAD = 10µA to -150 mV Response LOAD_TRAN 700mA, BBstIntegEn = 1 Input Supply Current mA/ I During Startup IN_STUP VIN = 3.6V, VOUT = 5V, ILOAD = 0 1 COUT(µF) Maximum Output Power IPWR_MAX_ST BBstFETScale = 0 400 600 mW During Startup (Note 3) UP BBstFETScale = 1 200 300 I2C controlled 9.6 Time from V Startup Time t OUT = STARTUP ms 0V to final value RSEL, 32 BBstRampEn = 0 PGOOD Threshold VPGOOD 84.7 %VOUT PGOOD Threshold V Hysteresis PGOOD_HYS 2.25 %VOUT Active Discharge I Current ACTD 20 mA Passive Discharge R Resistance PSVD 1.2 kΩ Soft-start active, SwoFrcIN = 1, or 1.836 VOUT set below 3.3V Input UVLO Rising V V Threshold IN_UVLO_R VIN rising VOUT set higher than 3.3V, SwoFrcIN = 0, soft- 2.185 start period complete Soft-start active, SwoFrcIN = 1, or 1.782 VOUT set below 3.3V Input UVLO Falling V V Threshold IN_UVLO_F VIN falling VOUT set higher than 3.3V, SwoFrcIN = 0, soft- 2.101 start period complete Output UVLO Falling V Threshold OUT_UVLO_F VOUT falling 1.873 V Output UVLO Rising V Threshold OUT_UVLO_R VOUT rising 1.963 V
DIGITAL
SDA, EN, SCL, INT, PGOOD, INGOOD I FAST, RSEL Input LK_IO TJ = +25°C -1 +1 µA Leakage Current www.maximintegrated.com Maxim Integrated | 9 Document Outline General Description Applications Benefits and Features Simplified Block Diagram Absolute Maximum Ratings Package Information 16-BUMP WLP 12-Pin FC2QFN Electrical Characteristics Electrical Characteristics (continued) Typical Operating Characteristics Typical Operating Characteristics (continued) Pin Configurations I2C-Controlled WLP Single-Pin-Enabled WLP I2C-Controlled FC2QFN Single-Pin-Enabled FC2QFN Pin Description Pin Description (continued) Functional Diagram Functional Diagram Detailed Description Startup Voltage Architectural Description Switching Phases Buck-Boost Mode Buck-Only Mode Inductor Peak and Valley Current Limits Integrator Control Loop Disable Input Operating Voltage Output Operating Power and Other Optimizations Device Control I2C-Controlled Single-Pin-Enabled Dynamic Voltage Scaling (DVS) RSEL Voltage Setting Register Map MAX20343/MAX20344 Register Details ChipID (0x00) BBstCfg0 (0x01) BBstVSet (0x02) BBstISet (0x03) BBstCfg1 (0x04) Status (0x05) Int (0x06) Mask (0x07) LockMsk (0x50) LockUnlock (0x51) Applications Information Input and Output Capacitance Inductor Selection Soft-Start I2C Interface Slave Address Start, Stop, and Repeated Start Conditions Bit Transfer Single-Byte Write Burst Write Single Byte Read Burst Read Acknowledge Bits Register Values Typical Application Circuits Optical Heart Rate LED Supply LPWAN Radio Supply Ordering Information Revision History