Datasheet MAX17291 (Maxim) - 7
| 制造商 | Maxim |
| 描述 | High-Voltage, 1A Micropower Boost Converter with Short-Circuit Protection and True Shutdown |
| 页数 / 页 | 21 / 7 — Electrical Characteristics (continued). PARAMETER. SYMBOL. CONDITIONS. … |
| 文件格式/大小 | PDF / 520 Kb |
| 文件语言 | 英语 |
Electrical Characteristics (continued). PARAMETER. SYMBOL. CONDITIONS. MIN. TYP. MAX. UNITS
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文件文字版本
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Electrical Characteristics (continued)
(VIN = VEN = 3.6V, VOUT = 12V, TJ = -40°C to +125°C, typical values are at TJ = +25°C, unless otherwise noted. (Note 1))
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
V ACC FB falling, when LX switching frequency CCM -1.5 +1.5 % Feedback (FB) is 1MHz (Note 2) Accuracy V ACC FB falling, when LX switching frequency DCM 1.239 1.258 1.277 V is <1MHz (Note 2) Output Load Regulation ACCLDREG 10mA < IIN < 160mA 2.0 % Not switching, Quiescent Supply I V T Current into IN Q_IN OUT = 104% of J = +25°C 28 45 μA regulation Not switching, Quiescent Supply I V T Current into OUT Q_OUT OUT = 104% of J = +25°C 5 25 μA regulation Shutdown Current into I IN SD_IN VEN = 0V TJ = +25°C 50 200 nA V LX Leakage Current I LX = 5.5V, VEN = VOUT = 0V, LX_LK 10 500 nA TJ = +25°C Inductor Peak Current I Limit PEAK (Note 3) 0.8 1.0 1.2 A Soft-Start Time tSS VOUT = 12V 2.2 ms LX Maximum On-Time tON_MAX 1.9 3.4 6.1 μs VIN = 3.6V, 230 255 280 TJ = +25°C VIN = 5.5V 350 LX Off-Time tOFF (Note 4) ns VIN = 5.0V, 530 VOUT = 7.0V VIN = 3.0V, 147 VOUT = 18V VIN = 3.6V, VOUT = 12V 1.0 LX Switching Frequency fSW VIN = 5.0V, VOUT = 7.0V 1.0 MHz VIN = 3.0V, VOUT = 18V 1.0 n-Channel On- R Resistance DSON VIN = 3.6V 320 650 mΩ p-Channel On- R Resistance DSON VIN = 3.6V 320 650 mΩ Diode Forward Voltage VF VIN = 3.6V, ILX = 100mA 0.4 V VIN = 1.8V to 5.5V, when LX stops Enable Voltage VIL 400 800 switching, EN falling mV Threshold VIH VIN = 1.8V to 5.5V, EN rising 1200 1400 Enable Input Leakage IEN_LK VEN = 0 to 5.5V, TJ = +25°C 0.5 100 nA FB Leakage IFB_LK VFB = 1.25V, TJ = +25°C -100 0.5 100 nA POK Threshold (TDFN VOUT when POK VOUT rising 92 % Package Only) switches VOUT falling 89.5 www.maximintegrated.com Maxim Integrated | 7 Document Outline General Description Applications Benefits and Features Typical Application Circuit Absolute Maximum Ratings Package Information WLP TDFN Electrical Characteristics Electrical Characteristics (continued) Typical Operating Characteristics Typical Operating Characteristics (continued) Pin Configurations WLP TDFN Pin Description Functional Diagram Functional Block Diagram Detailed Description Undervoltage Lockout Enable and Disable Soft-Start Output Short-Circuit Protection Thermal Shutdown Device Functional Modes Light Load Efficiency Mode PWM Mode Applications Information Typical Application Design Requirements Detailed Design Procedure Programming the Output Voltage Inductor Selection Input and Output Capacitor Selection Layout Guidelines Ordering Information Revision History
Electrical Characteristics (continued)
(VIN = VEN = 3.6V, VOUT = 12V, TJ = -40°C to +125°C, typical values are at TJ = +25°C, unless otherwise noted. (Note 1))
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
V ACC FB falling, when LX switching frequency CCM -1.5 +1.5 % Feedback (FB) is 1MHz (Note 2) Accuracy V ACC FB falling, when LX switching frequency DCM 1.239 1.258 1.277 V is <1MHz (Note 2) Output Load Regulation ACCLDREG 10mA < IIN < 160mA 2.0 % Not switching, Quiescent Supply I V T Current into IN Q_IN OUT = 104% of J = +25°C 28 45 μA regulation Not switching, Quiescent Supply I V T Current into OUT Q_OUT OUT = 104% of J = +25°C 5 25 μA regulation Shutdown Current into I IN SD_IN VEN = 0V TJ = +25°C 50 200 nA V LX Leakage Current I LX = 5.5V, VEN = VOUT = 0V, LX_LK 10 500 nA TJ = +25°C Inductor Peak Current I Limit PEAK (Note 3) 0.8 1.0 1.2 A Soft-Start Time tSS VOUT = 12V 2.2 ms LX Maximum On-Time tON_MAX 1.9 3.4 6.1 μs VIN = 3.6V, 230 255 280 TJ = +25°C VIN = 5.5V 350 LX Off-Time tOFF (Note 4) ns VIN = 5.0V, 530 VOUT = 7.0V VIN = 3.0V, 147 VOUT = 18V VIN = 3.6V, VOUT = 12V 1.0 LX Switching Frequency fSW VIN = 5.0V, VOUT = 7.0V 1.0 MHz VIN = 3.0V, VOUT = 18V 1.0 n-Channel On- R Resistance DSON VIN = 3.6V 320 650 mΩ p-Channel On- R Resistance DSON VIN = 3.6V 320 650 mΩ Diode Forward Voltage VF VIN = 3.6V, ILX = 100mA 0.4 V VIN = 1.8V to 5.5V, when LX stops Enable Voltage VIL 400 800 switching, EN falling mV Threshold VIH VIN = 1.8V to 5.5V, EN rising 1200 1400 Enable Input Leakage IEN_LK VEN = 0 to 5.5V, TJ = +25°C 0.5 100 nA FB Leakage IFB_LK VFB = 1.25V, TJ = +25°C -100 0.5 100 nA POK Threshold (TDFN VOUT when POK VOUT rising 92 % Package Only) switches VOUT falling 89.5 www.maximintegrated.com Maxim Integrated | 7 Document Outline General Description Applications Benefits and Features Typical Application Circuit Absolute Maximum Ratings Package Information WLP TDFN Electrical Characteristics Electrical Characteristics (continued) Typical Operating Characteristics Typical Operating Characteristics (continued) Pin Configurations WLP TDFN Pin Description Functional Diagram Functional Block Diagram Detailed Description Undervoltage Lockout Enable and Disable Soft-Start Output Short-Circuit Protection Thermal Shutdown Device Functional Modes Light Load Efficiency Mode PWM Mode Applications Information Typical Application Design Requirements Detailed Design Procedure Programming the Output Voltage Inductor Selection Input and Output Capacitor Selection Layout Guidelines Ordering Information Revision History