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Maxim Integrated Semiconductor Electronic Components Datasheet

MAX8893B Datasheet

uPMICs

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EVALUATION KIT AVAILABLE
MAX8893A/MAX8893B/MAX8893C
µPMICs for Multimedia Application Processors
in a 3.0mm x 2.5mm WLP
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.
Cellular Handsets
Smartphones and PDAs
Applications
Features
S High-Efficiency Step-Down Converter
Guaranteed 500mA Output Current
Up to 4MHz Switching Frequency
Programmable Output Voltage from 0.8V to 2.4V
Dynamic 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
Ordering Information
PART
TEMP RANGE PIN-PACKAGE
MAX8893AEWV+
-40NC to +85NC
30-Bump WLP
(3.0mm x 2.5mm)
MAX8893BEWV+
-40NC to +85NC
30-Bump WLP
(3.0mm x 2.5mm)
MAX8893CEWV+
-40NC to +85NC
30-Bump WLP
(3.0mm x 2.5mm)
+Denotes a lead(Pb)-free/RoHS-compliant package.
Typical Operating Circuit appears at end of data sheet.
Visit www.maximintegrated.com/products/patents for
product patent marking information.
For pricing, delivery, and ordering information, please contact Maxim Direct
at 1-888-629-4642, or visit Maxim’s website at www.maximintegrated.com.
19-4971; Rev 1; 2/10


Maxim Integrated Semiconductor Electronic Components Datasheet

MAX8893B Datasheet

uPMICs

No Preview Available !

MAX8893A/MAX8893B/MAX8893C
µPMICs for Multimedia Application Processors
in a 3.0mm x 2.5mm WLP
ABSOLUTE MAXIMUM RATINGS
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)................................................................+200NC
Vapor Phase (20s)........................................................+215NC
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.
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
(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)
PARAMETER
Input Supply Range
CONDITIONS
MIN TYP MAX UNIT
2.7 5.5 V
Shutdown Supply Current
VCB = 0V or VIN, VENUSB = VIN, VENLS = VENBUCK =
VENLDO1 = VENLDO2 = VENLDO3 = VENLDO45 = 0V
0.6 5 FA
No-Load Supply Current
No load on BUCK, LDO1, LDO2, LDO3, LDO4, and
LDO5, VENUSB = 0V, VENLS = VIN
160 200
FA
Light-Load Supply Current
UNDERVOLTAGE LOCKOUT
BUCK on with 500FA load, all LDOs on with no load,
VENUSB = 0V, VENLS = VIN
315 FA
Undervoltage Lockout (Note 5)
THERMAL SHUTDOWN
Thermal Shutdown Threshold
Thermal Shutdown Hysteresis
REFERENCE
VIN_ rising
VIN_ falling
TA rising
2.70
2.85
2.35
3.05
2.55
160
10
V
NC
NC
Reference Bypass Output
Voltage
0.786 0.800 0.814
V
REF Supply Rejection
2.7V P VIN P 5.5V
LOGIC AND CONTROL INPUTS
0.2 mV/V
Input Low Level
ENLS, ENBUCK, ENLDO1, ENLDO2, ENLDO3,
ENLDO45, ENUSB, SDA, SCL, 2.7V P VIN P 5.5V
0.4 V
Input High Level
ENLS, ENBUCK, ENLDO1, ENLDO2, ENLDO3,
ENLDO45, ENUSB, SDA, SCL, 2.7V P VIN P 5.5V
1.4
V
2   Maxim Integrated


Part Number MAX8893B
Description uPMICs
Maker Maxim Integrated Products
Total Page 30 Pages
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