MAX17116EVC+

MAX17116EVC+ Datasheet

MAX17116

Part	Datasheet
MAX17116EVC+	MAX17116EVC+ (pdf)

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MAX17116 Dual-Output DC/DC Power Supply for AMOLED The MAX17116 includes two current-mode 1.4MHz switch mode power-supply SMPS regulators for activematrix organic light-emitting diode AMOLED displays. The positive supply is provided by a step-up regulator with a synchronous rectifier. The negative supply is provided by an inverting regulator with a synchronous rectifier. The step-up DC-DC converter is a high-accuracy 250mA regulator with an integrated power MOSFET switch and synchronous rectifier. The synchronous rectifier improves efficiency and also provides True ShutdownTM. Its 4.6V fixed output efficiency exceeds 85% at 150mA from a 3.7V input. A built-in, 7-bit, digital soft-start function controls startup inrush currents. The inverting DC-DC converter is a high-accuracy 250mA regulator with a built-in power MOSFET switch and synchronous rectifier. Its -5.4V to -1.5V output efficiency exceeds 80% at 150mA from a 3.7V input. A builtin, 7-bit, digital soft-start function controls startup inrush currents. The internally set output voltage is adjusted through a unique communication protocol through the single EN pin. The IC is available in a 12-pin, 3mm x 3mm x 0.5mm, ultra-thin DFN package with exposed pad and 0.5mm lead spacing to facilitate placement on extremely narrow circuit boards and a 24-pin, 4mm x 4mm, thin QFN package with exposed pad. OLED Displays Phone, DSC Displays Automobile Navigation S 2.3V to 4.2V Input Operating Voltage Range S High-Performance PWM Step-Up Regulator Fixed 4.6V, 250mA Output High Accuracy ±1% 1.4MHz Switching Frequency Built-In 6V/0.25I n-Channel MOSFET with Lossless Current Sensing Built-In 6V/0.5I p-Channel MOSFET Synchronous Rectifier Cycle-by-Cycle Current Limit More than 85% Efficiency at 150mA Good Low-Duty Factor Operation S High-Performance PWM Inverting Regulator Programmable 250mA Output High Accuracy ±1% Adjustable Controlled-Output-Voltage Slew Rate 1.4MHz Switching Frequency Built-In 14V/0.25I p-Channel Power MOSFET with Lossless Current Sensing Built-In 14V/0.25I n-Channel Power MOSFET Synchronous Rectifier Cycle-by-Cycle Current Limit More than 80% Efficiency at 150mA S True Shutdown for Both Outputs S Timer-Delayed Output Undervoltage Shutdown for Both Outputs S Thermal-Overload Protection S 12-Pin, 3mm x 3mm Ultra-Thin DFN Package and 24-Pin, 4mm x 4mm TQFN Package Ordering Information PART MAX17116EVC+ MAX17116ETG+* TEMP RANGE -40NC to +85NC -40NC to +85NC PIN-PACKAGE 12 UTDFN 24 TQFN +Denotes a lead Pb -free/RoHS-compliant package. Future factory for availability. *Exposed pad. True Shutdown is a trademark of Maxim Integrated Products, Inc. Maxim Integrated Products 1 For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642, or visit Maxim’s website at MAX17116 Dual-Output DC/DC Power Supply for AMOLED ABSOLUTE MAXIMUM RATINGS IN, EN, IC, OUTP, LXP to AGND.............................-0.3V to +6V LXN to +0.3V STEP to VIN + 0.3V PGND to +0.3V OUTN to +0.3V LXN to +14V LXP, LXN, OUTP, OUTN, IN RMS Current Rating................1.6A Continuous Power Dissipation TA = +70NC 12-Pin UTDFN derate 15.1mW/NC above +70NC .....1206.6W 24-Pin TQFN derate 19mW/NC above +70NC .......1520.9mW Operating Temperature Range........................... -40NC to +85NC Junction Storage Temperature Range............................ -65NC to +160NC Lead Temperature soldering, Soldering Temperature Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability. ELECTRICAL CHARACTERISTICS VIN = +3.7V, Circuit of Figure 2, VOUTP = +4.9V, VOUTN = -4.9V, TA = 0°C to +85°C, unless otherwise noted. Typical values are at TA = +25NC. Note 1 PARAMETER IN Input Supply Range IN Undervoltage-Lockout Threshold IN Quiescent Current OUTP Quiescent Current VIN Quiescent Current IN Shutdown Current STEP-UP REGULATOR OUTP Regulation Voltage OUTP Fault Trip Level OUTP Load Regulation Oscillator Frequency Maximum Load Current LXP/OUTP Peak Current Limit LXP nMOS N1 On-Resistance LXP pMOS1 P1 On-Resistance LXP pMOS2 P2 On-Resistance LXP Damping Switch On-Resistance OUTP Discharge Resistance Soft-Start Period INVERTING REGULATOR OUTN Default Regulation Voltage CONDITIONS VIN rising, hysteresis = 200mV EN = IN, no load, not switching EN = IN, no load, not switching EN = IN, no load EN = AGND, TA = +25NC ILOAD = 10mA to 200mA, VIN = 2.3V to 4.2V Falling edge, no hysteresis Falling edge, no hysteresis, no timer 0 < ILOAD < 200mA, DC regulation VIN = 2.9V to 4.2V Note 2 Duty cycle = 35% ILXP1 = 200mA, Figure 3 ILXP1 = 200mA, Figure 3 ILXP2 = 200mA, Figure 3 OUTP to PGND 7-bit voltage ramp with filtering to prevent high peak currents At startup ILOAD 10mA to 200mA VIN = 2.3V to 4.2V MIN TYP MAX UNITS 1190 1400 1610 kHz 850 1100 1350 mA OUTN Minimum Regulation Voltage Lowest DAC code ILOAD 10mA to 200mA VIN = 2.3V to 4.2V MAX17116 Dual-Output DC/DC Power Supply for AMOLED ELECTRICAL CHARACTERISTICS continued VIN = +3.7V, Circuit of Figure 2, VOUTP = +4.9V, VOUTN = -4.9V, TA = 0°C to +85°C, unless otherwise noted. Typical values are at TA = +25NC. Note 1 PARAMETER CONDITIONS MIN TYP MAX UNITS OUTN Maximum Regulation Voltage Highest DAC code ILOAD 10mA to 200mA VIN = 2.3V to 4.2V OUTN Fault Trip Level Rising edge, no hysteresis, relative to current DAC step Rising edge, no hysteresis, relative to current DAC step, no timer Oscillator Frequency Maximum Load Current OUTN/LXN Peak Current Limit LXN-to-IN pMOS On-Resistance LXN-to-OUTN nMOS On-Resistance VIN = 2.9V to 4.2V Note 2 Duty cycle = 65% ILXN = 200mA

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MAX17116

Dual-Output DC/DC Power Supply for AMOLED

The MAX17116 includes two current-mode 1.4MHz switch mode power-supply SMPS regulators for activematrix organic light-emitting diode AMOLED displays. The positive supply is provided by a step-up regulator with a synchronous rectifier. The negative supply is provided by an inverting regulator with a synchronous rectifier.

The step-up DC-DC converter is a high-accuracy 250mA regulator with an integrated power MOSFET switch and synchronous rectifier. The synchronous rectifier improves efficiency and also provides True ShutdownTM. Its 4.6V fixed output efficiency exceeds 85% at 150mA from a 3.7V input. A built-in, 7-bit, digital soft-start function controls startup inrush currents.

The inverting DC-DC converter is a high-accuracy 250mA regulator with a built-in power MOSFET switch and synchronous rectifier. Its -5.4V to -1.5V output efficiency exceeds 80% at 150mA from a 3.7V input. A builtin, 7-bit, digital soft-start function controls startup inrush currents. The internally set output voltage is adjusted through a unique communication protocol through the single EN pin.

The IC is available in a 12-pin, 3mm x 3mm x 0.5mm, ultra-thin DFN package with exposed pad and 0.5mm lead spacing to facilitate placement on extremely narrow circuit boards and a 24-pin, 4mm x 4mm, thin QFN package with exposed pad.

OLED Displays Phone, DSC Displays Automobile Navigation

S 2.3V to 4.2V Input Operating Voltage Range

S High-Performance PWM Step-Up Regulator Fixed 4.6V, 250mA Output High Accuracy ±1% 1.4MHz Switching Frequency Built-In 6V/0.25I n-Channel MOSFET with Lossless Current Sensing Built-In 6V/0.5I p-Channel MOSFET Synchronous Rectifier Cycle-by-Cycle Current Limit More than 85% Efficiency at 150mA Good Low-Duty Factor Operation

S High-Performance PWM Inverting Regulator Programmable 250mA Output High Accuracy ±1% Adjustable Controlled-Output-Voltage Slew Rate 1.4MHz Switching Frequency Built-In 14V/0.25I p-Channel Power MOSFET with Lossless Current Sensing Built-In 14V/0.25I n-Channel Power MOSFET Synchronous Rectifier Cycle-by-Cycle Current Limit More than 80% Efficiency at 150mA

S True Shutdown for Both Outputs

S Timer-Delayed Output Undervoltage Shutdown for Both Outputs

S Thermal-Overload Protection

S 12-Pin, 3mm x 3mm Ultra-Thin DFN Package and 24-Pin, 4mm x 4mm TQFN Package
Ordering Information

PART MAX17116EVC+ MAX17116ETG+*

TEMP RANGE -40NC to +85NC -40NC to +85NC

PIN-PACKAGE 12 UTDFN** 24 TQFN**
+Denotes a lead Pb -free/RoHS-compliant package. *Future factory for availability. **Exposed pad.

True Shutdown is a trademark of Maxim Integrated Products, Inc.

Maxim Integrated Products 1
For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642, or visit Maxim’s website at

MAX17116

Dual-Output DC/DC Power Supply for AMOLED

ABSOLUTE MAXIMUM RATINGS

IN, EN, IC, OUTP, LXP to AGND.............................-0.3V to +6V LXN to +0.3V STEP to VIN + 0.3V PGND to +0.3V OUTN to +0.3V LXN to +14V LXP, LXN, OUTP, OUTN, IN RMS Current Rating................1.6A

Continuous Power Dissipation TA = +70NC 12-Pin UTDFN derate 15.1mW/NC above +70NC .....1206.6W 24-Pin TQFN derate 19mW/NC above +70NC .......1520.9mW

Operating Temperature Range........................... -40NC to +85NC Junction Storage Temperature Range............................ -65NC to +160NC Lead Temperature soldering, Soldering Temperature

Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability.

ELECTRICAL CHARACTERISTICS

VIN = +3.7V, Circuit of Figure 2, VOUTP = +4.9V, VOUTN = -4.9V, TA = 0°C to +85°C, unless otherwise noted. Typical values are at TA = +25NC. Note 1

PARAMETER IN Input Supply Range IN Undervoltage-Lockout Threshold IN Quiescent Current OUTP Quiescent Current VIN Quiescent Current IN Shutdown Current STEP-UP REGULATOR

OUTP Regulation Voltage

OUTP Fault Trip Level

OUTP Load Regulation Oscillator Frequency Maximum Load Current LXP/OUTP Peak Current Limit LXP nMOS N1 On-Resistance LXP pMOS1 P1 On-Resistance LXP pMOS2 P2 On-Resistance LXP Damping Switch On-Resistance OUTP Discharge Resistance

Soft-Start Period

INVERTING REGULATOR OUTN Default Regulation Voltage

CONDITIONS

VIN rising, hysteresis = 200mV EN = IN, no load, not switching EN = IN, no load, not switching EN = IN, no load EN = AGND, TA = +25NC

ILOAD = 10mA to 200mA, VIN = 2.3V to 4.2V Falling edge, no hysteresis Falling edge, no hysteresis, no timer 0 < ILOAD < 200mA, DC regulation

VIN = 2.9V to 4.2V Note 2 Duty cycle = 35% ILXP1 = 200mA, Figure 3 ILXP1 = 200mA, Figure 3 ILXP2 = 200mA, Figure 3

OUTP to PGND 7-bit voltage ramp with filtering to prevent high peak currents

At startup ILOAD 10mA to 200mA VIN = 2.3V to 4.2V

MIN TYP MAX UNITS
1190 1400 1610 kHz
850 1100 1350 mA

OUTN Minimum Regulation Voltage

Lowest DAC code ILOAD 10mA to 200mA VIN = 2.3V to 4.2V

MAX17116

Dual-Output DC/DC Power Supply for AMOLED

ELECTRICAL CHARACTERISTICS continued

VIN = +3.7V, Circuit of Figure 2, VOUTP = +4.9V, VOUTN = -4.9V, TA = 0°C to +85°C, unless otherwise noted. Typical values are at TA = +25NC. Note 1

PARAMETER

CONDITIONS

MIN TYP MAX UNITS

OUTN Maximum Regulation Voltage

Highest DAC code ILOAD 10mA to 200mA VIN = 2.3V to 4.2V

OUTN Fault Trip Level

Rising edge, no hysteresis, relative to current DAC step

Rising edge, no hysteresis, relative to current DAC step, no timer

Oscillator Frequency Maximum Load Current OUTN/LXN Peak Current Limit LXN-to-IN pMOS On-Resistance LXN-to-OUTN nMOS On-Resistance

VIN = 2.9V to 4.2V Note 2 Duty cycle = 65% ILXN = 200mA

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Datasheet ID: MAX17116EVC+ 647257