Datasheet ISL9122A (Renesas) - 6
| 制造商 | Renesas |
| 描述 | Ultra-Low IQ Buck-Boost Regulator with Bypass |
| 页数 / 页 | 21 / 6 |
| 文件格式/大小 | PDF / 902 Kb |
| 文件语言 | 英语 |
该数据表的模型线
文件文字版本
ISL9122A 2. Specifications VIN = VEN = 3.6V, VOUT = 3.3V, I2C pull-up voltage = VIN, L1 = 1µH, C1 = 10µF, effective C2 = 6µF, TA = +25°C.
Boldface limits apply across the recommended operating temperature range (-40°C to +85°C) and input voltage range (1.8V to 5.5V), unless specified otherwise. (Continued) Min Max Parameter Symbol Test Conditions (Note 4) Typ (Note 4) Unit
VIN Supply Current, Shutdown ISD VIN = 3.6V, EN = GND 8 450 nA VIN Supply Current, Soft Shutdown ISSD VIN = 3.6V, shutdown using I2C register. 40 450 nA EN_AND = CONV_CFG[7] = 0 VIN Supply Current, Forced Bypass IBYP VIN = 3.6V, IOUT = 0A, averaged > 1ms 120 850 nA Mode
Output Voltage Regulation
Output Voltage Range VOUT 1.8V < VIN < 5.5V, IOUT = 1mA
1.8 5.375
V Output Voltage Accuracy VOUT_ACC VIN = 3.6V, VOUT = 3.3V, IOUT = 0A, forced -2.5 +2.5 % PWM VIN = 3.6V, VOUT = 3.3V, IOUT = 1mA, PFM -3.6 +3.6 %
Soft-Start and Soft Discharge
Time to Read OTP tOTP Time from when VIN > VUVLO and EN signal 125 µs asserts until switching starts VOUT Ramp Rate for Soft-Start and DVSRATE Default at POR 3.125 mV/µs During Dynamic Voltage Scaling (applicable only for V Programmable using I2C after POR 6.25 mV/µs OUT ramp-up, not ramp-down) 0.78125 1.5625 VOUT Soft Discharge ON-Resistance rDISCHG EN < ENIL 160 Ω
Power MOSFET (WLCSP Package)
P-Channel MOSFET ON-Resistance rDSON_A VIN = 3.6V, VOUT = 3.6V 40 mΩ (Buck) N-Channel MOSFET ON-Resistance rDSON_B 40 mΩ (Buck) P-Channel MOSFET ON-Resistance rDSON_D 40 mΩ (Boost) N-Channel MOSFET ON-Resistance rDSON_C 40 mΩ (Boost)
Power MOSFET (DFN Package)
P-Channel MOSFET ON-Resistance rDSON_A VIN = 3.6V, V
OUT = 3.6V 50 mΩ (Buck) N-Channel MOSFET ON-Resistance rDSON_B 50 mΩ (Buck) P-Channel MOSFET ON-Resistance rDSON_D 50 mΩ (Boost) N-Channel MOSFET ON-Resistance rDSON_C 50 mΩ (Boost)
Bypass Mode
Auto Bypass Thresholds VIN_BYP Auto bypass thresholds - input voltage range. ±1% V IOUT = 10mA VOUT
Inductor Peak Current Limit
Peak Current Limit ILIM 2.5V < VIN < 5.5V 2.5 A 1.8V < VIN < 2.5V 2.5 A
Efficiency
Efficiency η IOUT = 50mA, VIN = 3.7V, VOUT = 3.3V 97 % IOUT = 10µA, VIN = 3.7V, VOUT = 3.3V 84 % FN8947 Rev.1.00 Page 6 of 20 Sep.14.20 Document Outline Features Applications Related Literature Contents 1. Overview 1.1 Block Diagram 1.2 Ordering Information 1.3 Pin Configurations 1.4 Pin Descriptions 2. Specifications 2.1 Absolute Maximum Ratings 2.2 Thermal Information 2.3 Recommended Operation Conditions 2.4 Analog Specifications 2.5 I2C Interface Timing Specifications 3. Typical Performance Curves 4. Functional Description 4.1 Enable Input 4.2 Soft Discharge 4.3 Start-Up 4.4 Overcurrent/Short-Circuit Protection 4.5 Thermal Shutdown 4.6 Buck-Boost Conversion Topology 4.7 PWM Operation 4.8 PFM Operation 4.9 Operation With VIN Close to VOUT 4.10 Forced Operating Modes 4.11 I2C Serial Interface 4.12 Protocol Conventions 4.13 Write Operation 4.14 Read Operation 4.15 Register Descriptions 4.15.1 RO_REG1 4.15.2 INTFLG_REG 4.15.3 VSET 4.15.4 CONV_CFG 4.15.5 INTFLG_MASK 5. Revision History 6. Package Outline Drawings
Boldface limits apply across the recommended operating temperature range (-40°C to +85°C) and input voltage range (1.8V to 5.5V), unless specified otherwise. (Continued) Min Max Parameter Symbol Test Conditions (Note 4) Typ (Note 4) Unit
VIN Supply Current, Shutdown ISD VIN = 3.6V, EN = GND 8 450 nA VIN Supply Current, Soft Shutdown ISSD VIN = 3.6V, shutdown using I2C register. 40 450 nA EN_AND = CONV_CFG[7] = 0 VIN Supply Current, Forced Bypass IBYP VIN = 3.6V, IOUT = 0A, averaged > 1ms 120 850 nA Mode
Output Voltage Regulation
Output Voltage Range VOUT 1.8V < VIN < 5.5V, IOUT = 1mA
1.8 5.375
V Output Voltage Accuracy VOUT_ACC VIN = 3.6V, VOUT = 3.3V, IOUT = 0A, forced -2.5 +2.5 % PWM VIN = 3.6V, VOUT = 3.3V, IOUT = 1mA, PFM -3.6 +3.6 %
Soft-Start and Soft Discharge
Time to Read OTP tOTP Time from when VIN > VUVLO and EN signal 125 µs asserts until switching starts VOUT Ramp Rate for Soft-Start and DVSRATE Default at POR 3.125 mV/µs During Dynamic Voltage Scaling (applicable only for V Programmable using I2C after POR 6.25 mV/µs OUT ramp-up, not ramp-down) 0.78125 1.5625 VOUT Soft Discharge ON-Resistance rDISCHG EN < ENIL 160 Ω
Power MOSFET (WLCSP Package)
P-Channel MOSFET ON-Resistance rDSON_A VIN = 3.6V, VOUT = 3.6V 40 mΩ (Buck) N-Channel MOSFET ON-Resistance rDSON_B 40 mΩ (Buck) P-Channel MOSFET ON-Resistance rDSON_D 40 mΩ (Boost) N-Channel MOSFET ON-Resistance rDSON_C 40 mΩ (Boost)
Power MOSFET (DFN Package)
P-Channel MOSFET ON-Resistance rDSON_A VIN = 3.6V, V
OUT = 3.6V 50 mΩ (Buck) N-Channel MOSFET ON-Resistance rDSON_B 50 mΩ (Buck) P-Channel MOSFET ON-Resistance rDSON_D 50 mΩ (Boost) N-Channel MOSFET ON-Resistance rDSON_C 50 mΩ (Boost)
Bypass Mode
Auto Bypass Thresholds VIN_BYP Auto bypass thresholds - input voltage range. ±1% V IOUT = 10mA VOUT
Inductor Peak Current Limit
Peak Current Limit ILIM 2.5V < VIN < 5.5V 2.5 A 1.8V < VIN < 2.5V 2.5 A
Efficiency
Efficiency η IOUT = 50mA, VIN = 3.7V, VOUT = 3.3V 97 % IOUT = 10µA, VIN = 3.7V, VOUT = 3.3V 84 % FN8947 Rev.1.00 Page 6 of 20 Sep.14.20 Document Outline Features Applications Related Literature Contents 1. Overview 1.1 Block Diagram 1.2 Ordering Information 1.3 Pin Configurations 1.4 Pin Descriptions 2. Specifications 2.1 Absolute Maximum Ratings 2.2 Thermal Information 2.3 Recommended Operation Conditions 2.4 Analog Specifications 2.5 I2C Interface Timing Specifications 3. Typical Performance Curves 4. Functional Description 4.1 Enable Input 4.2 Soft Discharge 4.3 Start-Up 4.4 Overcurrent/Short-Circuit Protection 4.5 Thermal Shutdown 4.6 Buck-Boost Conversion Topology 4.7 PWM Operation 4.8 PFM Operation 4.9 Operation With VIN Close to VOUT 4.10 Forced Operating Modes 4.11 I2C Serial Interface 4.12 Protocol Conventions 4.13 Write Operation 4.14 Read Operation 4.15 Register Descriptions 4.15.1 RO_REG1 4.15.2 INTFLG_REG 4.15.3 VSET 4.15.4 CONV_CFG 4.15.5 INTFLG_MASK 5. Revision History 6. Package Outline Drawings