Datasheet LT3582, LT3582-5, LT3582-12 (Analog Devices) - 3
| 制造商 | Analog Devices |
| 描述 | Boost and Single Inductor Inverting DC/DC Converters with Optional I2C Programing and OTP |
| 页数 / 页 | 28 / 3 — ELECTRICAL CHARACTERISTICS. The. denotes the specifi cations which apply … |
| 文件格式/大小 | PDF / 328 Kb |
| 文件语言 | 英语 |
ELECTRICAL CHARACTERISTICS. The. denotes the specifi cations which apply over the full operating
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LT3582/LT3582-5/LT3582-12
ELECTRICAL CHARACTERISTICS The
l
denotes the specifi cations which apply over the full operating temperature range, otherwise specifi cations are at TA = 25°C. VIN = 3.6V, VSHDN = VIN unless otherwise noted. (Note 3) Switching Regulator Characteristics SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
TON_MAX Maximum Switch On-Time Inverting and Boost Switches 10 μs ILIMIT_P Boost Switch Current Limit l 285 350 430 mA ILIMIT_N Inverting Switch Current Limit l 490 600 720 mA RON_P Boost Switch On-Resistance ISWP = 200mA 500 mΩ RON_N Inverting Switch On-Resistance ISWN = –400mA 560 mΩ IOFF_P Boost Switch Leakage Current into VSWP = 5V 0.01 0.5 μA SWP Pin IOFF_N Inverting Switch Leakage Current Out of VIN = 5.0, VSWN = 0.0 0.01 1 μA SWN Pin RON_DIS Output Disconnect Switch VCAPP = 10V, RAMPP > 1.4V 1.4 Ω On-Resistance ILIMIT_DIS Output Disconnect Current Limit l 124 155 186 mA IVOUTP_PDS VOUTP Power-Down Discharge Current VOUTP = 8V 2.4 4.8 8.8 mA ICAPP_PDS CAPP Power-Down Discharge Current CAPP = 8V 1.2 2.4 4.4 mA IVOUTN_PDS VOUTN Power-Down Discharge Current VOUTN = –8V –1.4 –2.8 –4.2 mA TSTART-UP Confi guration Start-Up Delay VIN> VIN_MIN and SHDN > VSHDN_VIH to I2C l 64 128 μs Enabled and Power-Up Sequencing Start
Programmable Output Characteristics (Note 6) SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
VVOUTP Positive Output Voltage LT3582-5 l 4.95 5 5.05 V LT3582-12 l 11.88 12 12.1 V N_VOUTP Positive VOUTP Resolution (Note 2) 9 Bits VVOUTP_LSB VOUTP LSB (Note 2) 25 mV VVOUTP_FS VOUTP Full-Scale Voltage (Note 2) Code = BFh, VPLUS = 1 l 12.56 12.775 12.94 V VVOUTP_MIN VOUTP Minimum Voltage (Note 2) Code = 00h, VPLUS = 0 l 3.152 3.20 3.248 V VVOUTP_LR VOUTP Line Regulation Code = BFh, 2.575 < VIN < 5.5 –0.02 %/V VVOUTN Negative Output Voltage LT3582-5 l –5.075 –5 –4.925 V LT3582-12 l –12.1 –12 –11.868 V N_VOUTN Negative VOUTN Resolution (Note 2) 8 Bits VVOUTN_LSB VOUTN LSB (Note 2) –50 mV VVOUTN_FS VOUTN Full-Scale Voltage (Note 2) Code = FFh l –14.2 –13.95 –13.7 V VVOUTN_MIN VOUTN Minimum Voltage (Note 2) Code = 00h l –1.23 –1.205 –1.18 V VVOUTN_LR VOUTN Line Regulation Code = FFh, 2.575 < VIN < 5.5 –0.01 %/V INL_VOUTP VOUTP Integral Nonlinearity (Notes 2, 4) l ±0.6 LSB DNL_VOUTP VOUTP Differential Nonlinearity (Notes 2, 4) l ±0.6 LSB INL_VOUTN VOUTN Integral Nonlinearity (Note 2) l ±0.85 LSB DNL_VOUTN VOUTN Differential Nonlinearity (Note 2) l ±0.85 LSB IRAMP00 RAMPP/RAMPN Pull-Up Current VRAMPP = 0.0V l 0.7 1.0 1.3 μA IRMP Code = 00 VRAMPN = 0.0V IRAMP01 RAMPP/RAMPN Pull-Up Current (Note 2) VRAMPP = 0.0V l 1.4 2.0 2.6 μA IRMP Code = 01 VRAMPN = 0.0V 3582512fb 3
ELECTRICAL CHARACTERISTICS The
l
denotes the specifi cations which apply over the full operating temperature range, otherwise specifi cations are at TA = 25°C. VIN = 3.6V, VSHDN = VIN unless otherwise noted. (Note 3) Switching Regulator Characteristics SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
TON_MAX Maximum Switch On-Time Inverting and Boost Switches 10 μs ILIMIT_P Boost Switch Current Limit l 285 350 430 mA ILIMIT_N Inverting Switch Current Limit l 490 600 720 mA RON_P Boost Switch On-Resistance ISWP = 200mA 500 mΩ RON_N Inverting Switch On-Resistance ISWN = –400mA 560 mΩ IOFF_P Boost Switch Leakage Current into VSWP = 5V 0.01 0.5 μA SWP Pin IOFF_N Inverting Switch Leakage Current Out of VIN = 5.0, VSWN = 0.0 0.01 1 μA SWN Pin RON_DIS Output Disconnect Switch VCAPP = 10V, RAMPP > 1.4V 1.4 Ω On-Resistance ILIMIT_DIS Output Disconnect Current Limit l 124 155 186 mA IVOUTP_PDS VOUTP Power-Down Discharge Current VOUTP = 8V 2.4 4.8 8.8 mA ICAPP_PDS CAPP Power-Down Discharge Current CAPP = 8V 1.2 2.4 4.4 mA IVOUTN_PDS VOUTN Power-Down Discharge Current VOUTN = –8V –1.4 –2.8 –4.2 mA TSTART-UP Confi guration Start-Up Delay VIN> VIN_MIN and SHDN > VSHDN_VIH to I2C l 64 128 μs Enabled and Power-Up Sequencing Start
Programmable Output Characteristics (Note 6) SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
VVOUTP Positive Output Voltage LT3582-5 l 4.95 5 5.05 V LT3582-12 l 11.88 12 12.1 V N_VOUTP Positive VOUTP Resolution (Note 2) 9 Bits VVOUTP_LSB VOUTP LSB (Note 2) 25 mV VVOUTP_FS VOUTP Full-Scale Voltage (Note 2) Code = BFh, VPLUS = 1 l 12.56 12.775 12.94 V VVOUTP_MIN VOUTP Minimum Voltage (Note 2) Code = 00h, VPLUS = 0 l 3.152 3.20 3.248 V VVOUTP_LR VOUTP Line Regulation Code = BFh, 2.575 < VIN < 5.5 –0.02 %/V VVOUTN Negative Output Voltage LT3582-5 l –5.075 –5 –4.925 V LT3582-12 l –12.1 –12 –11.868 V N_VOUTN Negative VOUTN Resolution (Note 2) 8 Bits VVOUTN_LSB VOUTN LSB (Note 2) –50 mV VVOUTN_FS VOUTN Full-Scale Voltage (Note 2) Code = FFh l –14.2 –13.95 –13.7 V VVOUTN_MIN VOUTN Minimum Voltage (Note 2) Code = 00h l –1.23 –1.205 –1.18 V VVOUTN_LR VOUTN Line Regulation Code = FFh, 2.575 < VIN < 5.5 –0.01 %/V INL_VOUTP VOUTP Integral Nonlinearity (Notes 2, 4) l ±0.6 LSB DNL_VOUTP VOUTP Differential Nonlinearity (Notes 2, 4) l ±0.6 LSB INL_VOUTN VOUTN Integral Nonlinearity (Note 2) l ±0.85 LSB DNL_VOUTN VOUTN Differential Nonlinearity (Note 2) l ±0.85 LSB IRAMP00 RAMPP/RAMPN Pull-Up Current VRAMPP = 0.0V l 0.7 1.0 1.3 μA IRMP Code = 00 VRAMPN = 0.0V IRAMP01 RAMPP/RAMPN Pull-Up Current (Note 2) VRAMPP = 0.0V l 1.4 2.0 2.6 μA IRMP Code = 01 VRAMPN = 0.0V 3582512fb 3