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MAX8893CEWV+T
µPMICs for Multimedia Application Processors in a 3.0mm x 2.5mm WLP
µPMICs for Multimedia Application Processors
in a 3.0mm x 2.5mm WLP
MAX8893A/MAX8893B/MAX8893C
EVALUATION KIT AVAILABLE General Description
The MAX8893A/MAX8893B/MAX8893C power-manage-
ment integrated circuits (PMICs) are designed for a
variety of portable devices including cellular handsets.
The PMICs include a high-efficiency step-down DC-DC
converter, five low-dropout linear regulators (LDOs) with
programmable output voltages, individual power-on/
off control inputs, a load switch, and a USB high-speed
switch. These devices maintain high efficiency with a low
no-load supply current, and the small 3.0mm x 2.5mm
WLP package makes them ideal for portable devices.
The step-down DC-DC converter utilizes a proprietary
4MHz hysteretic PWM control scheme that allows for
ultra-small external components. Internal synchronous
rectification improves efficiency and eliminates the exter-
nal Schottky diode that is required in conventional step-
down converters. Its output voltage is programmable by
the I2C serial interface and output current is guaranteed
up to 500mA.
LDO1, LDO4, and LDO5 offer low 45FVRMS output noise
and low dropout of only 100mV at 100mA. They deliver
up to 300mA, 150mA, and 200mA continuous output cur-
rents, respectively. LDO2 and LDO3 each deliver 300mA
continuous output current with very low ground current.
All LDO output voltages are programmable by the I2C
serial interface. Three standard versions of the PMIC are
available with different LDO default startup voltages (see
Table 1).
The MAX8893A/MAX8893B/MAX8893C are available in
a 3.0mm x 2.5mm, 30-bump WLP package.
Applications
Cellular Handsets
Smartphones and PDAs
Features
S High-Efficiency Step-Down ConverterGuaranteed 500mA Output CurrentUp to 4MHz Switching FrequencyProgrammable Output Voltage from 0.8V to 2.4VDynamic Voltage Scaling with Programmable
Ramp Rate
S Three Low-Noise LDOs with Programmable
Output Voltages
S Two Low Supply Current LDOs with
Programmable Output Voltages
S Low On-Resistance Load Switch
S USB High-Speed Switch with ±15kV ESD
S Individual Enable Control for All Regulators and
Switches
S I2C Serial Interface
S Overcurrent and Thermal Protection for All LDOs
S 3.0mm x 2.5mm x 0.64mm, 30-Bump WLP
+Denotes a lead(Pb)-free/RoHS-compliant package.
Typical Operating Circuit appears at end of data sheet.
Ordering Information
Visit www.maximintegrated.com/products/patents for
product patent marking information.
PARTTEMP RANGEPIN-PACKAGE
MAX8893AEWV+-40NC to +85NC30-Bump WLP
(3.0mm x 2.5mm)
MAX8893BEWV+-40NC to +85NC30-Bump WLP
(3.0mm x 2.5mm)
MAX8893CEWV+-40NC to +85NC30-Bump WLP
(3.0mm x 2.5mm)
µPMICs for Multimedia Application Processors
in a 3.0mm x 2.5mm WLP
MAX8893A/MAX8893B/MAX8893C
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.
IN1, IN2, BATT, COM1, COM2 to AGND .............-0.3V to +6.0V
BUCK, LS, ENLS, ENBUCK, ENLDO1, ENLDO2,
ENLDO3, ENLDO45, REFBP, LDO2, LDO3,
SCL, SDA, ENUSB, CB, NC1, NC2,
NO1, NO2 to AGND ..........................-0.3V to (VBATT + 0.3V)
LDO1, LDO4, LDO5 to AGND ..................-0.3V to (VIN2 + 0.3V)
PGND to AGND ....................................................-0.3V to +0.3V
LX Current .....................................................................1.5ARMS
LX to AGND (Note 1) ................................-0.3V to (VIN1 + 0.3V)
Continuous Power Dissipation (TA = +70NC)
30-Bump, 3.0mm x 2.5mm WLP (derate 20.0mW/NC
above +70NC).............................................................1600mW
Junction-to-Ambient Thermal Resistance (θJA)
(Note 2) ........................................................................50NC/W
Operating Temperature Range ..........................-40NC to +85NC
Junction Temperature .....................................................+150NC
Storage Temperature Range ............................-65NC to +150NC
Bump Temperature (soldering)Infrared (15s) ...............................................................+200NCVapor Phase (20s) .......................................................+215NC
ELECTRICAL CHARACTERISTICS
(Typical Operating Circuit, VIN = 3.7V, CBATT = CIN1 = CIN2 = 2.2FF, CREFBP = 0.1FF, TA = -40NC to +85NC, unless otherwise noted.
Typical values are at TA = +25NC.) (Notes 3, 4)
ABSOLUTE MAXIMUM RATINGS
Note 1: LX has internal clap diodes to PGND and IN1. Applications that forward bias these diodes should take care not to exceed
the IC’s package-dissipation limits.
Note 2: Package thermal resistances were obtained using the method described in JEDEC specification JESD51-7, using a four-lay-
er board. For detailed information on package thermal considerations, refer to www.maximintegrated.com/thermal-tutorial.
PARAMETERCONDITIONSMINTYPMAXUNIT
Input Supply Range2.75.5V
Shutdown Supply CurrentVCB = 0V or VIN, VENUSB = VIN, VENLS = VENBUCK =
VENLDO1 = VENLDO2 = VENLDO3 = VENLDO45 = 0V0.65FA
No-Load Supply CurrentNo load on BUCK, LDO1, LDO2, LDO3, LDO4, and
LDO5, VENUSB = 0V, VENLS = VIN160200FA
Light-Load Supply CurrentBUCK on with 500FA load, all LDOs on with no load,
VENUSB = 0V, VENLS = VIN315FA
UNDERVOLTAGE LOCKOUT
Undervoltage Lockout (Note 5)VIN_ rising2.702.853.05VVIN_ falling2.352.55
THERMAL SHUTDOWN
Thermal Shutdown ThresholdTA rising160NC
Thermal Shutdown Hysteresis10NC
REFERENCE
Reference Bypass Output
Voltage0.7860.8000.814V
REF Supply Rejection2.7V P VIN P 5.5V0.2mV/V
LOGIC AND CONTROL INPUTS
Input Low LevelENLS, ENBUCK, ENLDO1, ENLDO2, ENLDO3,
ENLDO45, ENUSB, SDA, SCL, 2.7V P VIN P 5.5V0.4V
Input High Level ENLS, ENBUCK, ENLDO1, ENLDO2, ENLDO3,
ENLDO45, ENUSB, SDA, SCL, 2.7V P VIN P 5.5V1.4V
µPMICs for Multimedia Application Processors
in a 3.0mm x 2.5mm WLP
MAX8893A/MAX8893B/MAX8893C
ELECTRICAL CHARACTERISTICS (continued)
(Typical Operating Circuit, VIN = 3.7V, CBATT = CIN1 = CIN2 = 2.2FF, CREFBP = 0.1FF, TA = -40NC to +85NC, unless otherwise noted.
Typical values are at TA = +25NC.) (Notes 3, 4)
PARAMETERCONDITIONSMINTYPMAXUNIT
Logic Input CurrentSDA, SCL, 0V < VIN < 5.5VTA = +25NC-1+1FATA = +85NC0.1
ENUSB Pullup Resistor to BATT4008001600kI
ENLS, ENBUCK, ENLDO1,
ENLDO2, ENLDO3, ENLDO45,
Pulldown Resistor to AGND
4008001600kI
STEP-DOWN DC-DC CONVERTER (BUCK)
Supply CurrentILOAD = 0A, no switching25FA
Programmable Output Voltage ILOAD = 100mA, programmable output voltage 0.8V to
2.4V in 100mV steps
Output-Voltage Line RegulationVIN = 2.7V to 5.5V0.3%/V
LX Leakage CurrentVLX = 0V or 5.5VTA = +25NC-1+1FATA = +85NC0.1
Current Limitp-MOSFET switch 6009901500mAn-MOSFET rectifier4007001300
On-Resistancep-MOSFET switch, ILX = -40mA0.65In-MOSFET rectifier, ILX = 40mA0.4
Rectifier Off Current ThresholdILXOFF30mA
Minimum On- and Off-TimestON, tOFF70ns
Shutdown Output ResistanceBUCK_ADEN = 1, VENBUCK = 0V300I
µPMICs for Multimedia Application Processors
in a 3.0mm x 2.5mm WLP
MAX8893A/MAX8893B/MAX8893C
ELECTRICAL CHARACTERISTICS (continued)
(Typical Operating Circuit, VIN = 3.7V, CBATT = CIN1 = CIN2 = 2.2FF, CREFBP = 0.1FF, TA = -40NC to +85NC, unless otherwise noted.
Typical values are at TA = +25NC.) (Notes 3, 4)
PARAMETERCONDITIONSMINTYPMAXUNIT
LDO1
Input Voltage Range2.75.5V
Programmable Output VoltageILOAD = 25mA, programmable output voltage 1.6V to
3.3V in 100mV steps
Output Voltage Accuracy
VIN = 5.5V with ILOAD = 1mA, and
VIN = 3.2V with ILOAD = 300mA (MAX8893A)2.7162.8002.884VIN = 5.5V with ILOAD = 1mA, and
VIN = 3.0V with ILOAD = 300mA (MAX8893B)2.5222.6002.678
VIN = 5.5V with ILOAD = 1mA, and
VIN = 2.7V with ILOAD = 300mA (MAX8893C)1.7461.8001.854
Output Current300mA
Current LimitVLDO1 = 0V550mA
Dropout VoltageILOAD = 200mA, TA = +25NC200mV
Load Regulation1mA < ILOAD < 300mA
VENLDO1 = VBATT25mV
Power-Supply Rejection DVLDO1/DVIN210Hz to 10kHz, CLDO1 = 1FF, ILOAD = 30mA75dB
Output Noise Voltage100Hz to 100kHz, CLDO1 = 1FF, ILOAD = 30mA45FVRMS
Output Capacitor for Stable
Operation (Note 6)
0mA < ILOAD < 300mA1.42.2FF0mA < ILOAD < 150mA0.71.0
Ground CurrentILOAD = 500FA21FA
Startup Time from ShutdownCLDO1 = 2.2FF, ILOAD = 300mA40Fs
Shutdown Output ResistanceLDO1_ADEN = 1, VENLDO1 = 0V300I
µPMICs for Multimedia Application Processors
in a 3.0mm x 2.5mm WLP
MAX8893A/MAX8893B/MAX8893C
ELECTRICAL CHARACTERISTICS (continued)
(Typical Operating Circuit, VIN = 3.7V, CBATT = CIN1 = CIN2 = 2.2FF, CREFBP = 0.1FF, TA = -40NC to +85NC, unless otherwise noted.
Typical values are at TA = +25NC.) (Notes 3, 4)
PARAMETERCONDITIONSMINTYPMAXUNIT
LDO2
Input Voltage Range2.75.5V
Programmable Output VoltageILOAD = 25mA, programmable output voltage 1.2V to
3.3V in 100mV steps
Output Voltage AccuracyVIN = 5.5V with ILOAD = 1mA, and
VIN = 3.0V with ILOAD = 300mA2.5222.6002.678V
Output Current300mA
Current LimitVLDO2 = 0V550mA
Dropout VoltageILOAD = 200mA, TA = +25NC200mV
Load Regulation1mA < ILOAD < 300mA
VENLDO2 = VBATT25mV
Power-Supply Rejection DVLDO2/DVBATT10Hz to 10kHz, CLDO2 = 1FF, ILOAD = 30mA60dB
Output Noise Voltage100Hz to 100kHz, CLDO2 = 1FF, ILOAD = 30mA80FVRMS
Output Capacitor for Stable
Operation (Note 6)
0mA < ILOAD < 300mA1.42.2FF0mA < ILOAD < 150mA0.71.0
Ground CurrentILOAD = 500FA21FA
Startup Time from ShutdownCLDO2 = 1FF, ILOAD = 300mA40Fs
Shutdown Output ResistanceLDO2_ADEN = 1, VENLDO2 = 0V300I
