19-4971; Rev 1; 2/10
TION KIT
EVALUA BLE
AVAILA
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 I
2
C serial interface and output current is guaranteed
up to 500mA.
LDO1, LDO4, and LDO5 offer low 45FV
RMS
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 I
2
C
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.
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
I
2
C Serial Interface
S
Overcurrent and Thermal Protection for All LDOs
S
3.0mm x 2.5mm x 0.64mm, 30-Bump WLP
MAX8893A/MAX8893B/MAX8893C
Ordering Information
PART
MAX8893AEWV+
MAX8893BEWV+
MAX8893CEWV+
TEMP RANGE
-40NC to +85NC
-40NC to +85NC
-40NC to +85NC
PIN-PACKAGE
30-Bump WLP
(3.0mm x 2.5mm)
30-Bump WLP
(3.0mm x 2.5mm)
30-Bump WLP
(3.0mm x 2.5mm)
Applications
Cellular Handsets
Smartphones and PDAs
+Denotes
a lead(Pb)-free/RoHS-compliant package.
Typical Operating Circuit appears at end of data sheet.
_______________________________________________________________
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 www.maxim-ic.com.
µPMICs for Multimedia Application Processors
in a 3.0mm x 2.5mm WLP
MAX8893A/MAX8893B/MAX8893C
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 (V
BATT
+ 0.3V)
LDO1, LDO4, LDO5 to AGND.................. -0.3V to (V
IN2
+ 0.3V)
PGND to AGND ....................................................-0.3V to +0.3V
LX Current ..................................................................... 1.5A
RMS
LX to AGND (Note 1)................................ -0.3V to (V
IN1
+ 0.3V)
Continuous Power Dissipation (T
A
= +70NC)
30-Bump, 3.0mm x 2.5mm WLP (derate 20.0mW/NC
above +70NC).............................................................1600mW
Junction-to-Ambient Thermal Resistance (θ
JA
)
(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-
layer board. For detailed information on package thermal considerations, refer to
www.maxim-ic.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,
V
IN
= 3.7V, C
BATT
= C
IN1
= C
IN2
= 2.2FF, C
REFBP
= 0.1FF, T
A
= -40NC to +85NC, unless otherwise noted.
Typical values are at T
A
= +25NC.) (Notes 3, 4)
PARAMETER
Input Supply Range
Shutdown Supply Current
No-Load Supply Current
Light-Load Supply Current
UNDERVOLTAGE LOCKOUT
Undervoltage Lockout (Note 5)
THERMAL SHUTDOWN
Thermal Shutdown Threshold
Thermal Shutdown Hysteresis
REFERENCE
Reference Bypass Output
Voltage
REF Supply Rejection
LOGIC AND CONTROL INPUTS
Input Low Level
Input High Level
ENLS, ENBUCK, ENLDO1, ENLDO2, ENLDO3,
ENLDO45,
ENUSB,
SDA, SCL, 2.7V
P
V
IN
P
5.5V
ENLS, ENBUCK, ENLDO1, ENLDO2, ENLDO3,
ENLDO45,
ENUSB,
SDA, SCL, 2.7V
P
V
IN
P
5.5V
1.4
0.4
V
V
2.7V
P
V
IN
P
5.5V
0.786
0.800
0.2
0.814
V
mV/V
T
A
rising
160
10
NC
NC
V
IN_
rising
V
IN_
falling
2.70
2.85
2.35
3.05
2.55
V
V
CB
= 0V or V
IN
, V
ENUSB
= V
IN
, V
ENLS
= V
ENBUCK
=
V
ENLDO1
= V
ENLDO2
= V
ENLDO3
= V
ENLDO45
= 0V
No load on BUCK, LDO1, LDO2, LDO3, LDO4, and
LDO5, V
ENUSB
= 0V, V
ENLS
= V
IN
BUCK on with 500FA load, all LDOs on with no load,
V
ENUSB
= 0V, V
ENLS
= V
IN
CONDITIONS
MIN
2.7
0.6
160
315
TYP
MAX
5.5
5
200
UNIT
V
FA
FA
FA
2
______________________________________________________________________________________
µPMICs for Multimedia Application Processors
in a 3.0mm x 2.5mm WLP
ELECTRICAL CHARACTERISTICS (continued)
(Typical
Operating Circuit,
V
IN
= 3.7V, C
BATT
= C
IN1
= C
IN2
= 2.2FF, C
REFBP
= 0.1FF, T
A
= -40NC to +85NC, unless otherwise noted.
Typical values are at T
A
= +25NC.) (Notes 3, 4)
PARAMETER
Logic Input Current
ENUSB
Pullup Resistor to BATT
ENLS, ENBUCK, ENLDO1,
ENLDO2, ENLDO3, ENLDO45,
Pulldown Resistor to AGND
STEP-DOWN DC-DC CONVERTER (BUCK)
Supply Current
I
LOAD
= 0A, no switching
0.776
0.97
25
0.800
0.90
1.00
1.10
1.20
1.30
1.40
Programmable Output Voltage
I
LOAD
= 100mA, programmable output voltage 0.8V to
2.4V in 100mV steps
1.50
1.60
1.70
1.80
1.90
2.00
2.10
2.20
2.231
2.328
Output-Voltage Line Regulation
LX Leakage Current
Current Limit
On-Resistance
Rectifier Off Current Threshold
Minimum On- and Off-Times
Shutdown Output Resistance
V
IN
= 2.7V to 5.5V
V
LX
= 0V or 5.5V
p-MOSFET switch
n-MOSFET rectifier
p-MOSFET switch, I
LX
= -40mA
n-MOSFET rectifier, I
LX
= 40mA
I
LXOFF
t
ON
, t
OFF
BUCK_ADEN = 1, V
ENBUCK
= 0V
T
A
= +25NC
T
A
= +85NC
600
400
-1
0.1
990
700
0.65
0.4
30
70
300
1500
1300
2.300
2.400
0.3
+1
2.369
2.472
%/V
FA
mA
I
mA
ns
I
V
1.03
0.824
FA
CONDITIONS
SDA, SCL, 0V < V
IN
< 5.5V
T
A
= +25NC
T
A
= +85NC
400
400
MIN
-1
0.1
800
800
1600
1600
TYP
MAX
+1
UNIT
FA
kI
kI
MAX8893A/MAX8893B/MAX8893C
_______________________________________________________________________________________
3
µPMICs for Multimedia Application Processors
in a 3.0mm x 2.5mm WLP
MAX8893A/MAX8893B/MAX8893C
ELECTRICAL CHARACTERISTICS (continued)
(Typical
Operating Circuit,
V
IN
= 3.7V, C
BATT
= C
IN1
= C
IN2
= 2.2FF, C
REFBP
= 0.1FF, T
A
= -40NC to +85NC, unless otherwise noted.
Typical values are at T
A
= +25NC.) (Notes 3, 4)
PARAMETER
LDO1
Input Voltage Range
2.7
1.552
1.600
1.70
1.80
1.90
2.00
2.10
2.20
2.30
Programmable Output Voltage
I
LOAD
= 25mA, programmable output voltage 1.6V to
3.3V in 100mV steps
2.40
2.50
2.60
2.70
2.80
2.90
2.910
3.000
3.1
3.2
3.201
V
IN
= 5.5V with I
LOAD
= 1mA, and
V
IN
= 3.2V with I
LOAD
= 300mA (MAX8893A)
Output Voltage Accuracy
V
IN
= 5.5V with I
LOAD
= 1mA, and
V
IN
= 3.0V with I
LOAD
= 300mA (MAX8893B)
V
IN
= 5.5V with I
LOAD
= 1mA, and
V
IN
= 2.7V with I
LOAD
= 300mA (MAX8893C)
Output Current
Current Limit
Dropout Voltage
Load Regulation
Power-Supply Rejection
DV
LDO1
/DV
IN2
Output Noise Voltage
Output Capacitor for Stable
Operation (Note 6)
Ground Current
Startup Time from Shutdown
Shutdown Output Resistance
V
LDO1
= 0V
I
LOAD
= 200mA, T
A
= +25NC
1mA < I
LOAD
< 300mA
V
ENLDO1
= V
BATT
10Hz to 10kHz, C
LDO1
= 1FF, I
LOAD
= 30mA
100Hz to 100kHz, C
LDO1
= 1FF, I
LOAD
= 30mA
0mA < I
LOAD
< 300mA
0mA < I
LOAD
< 150mA
I
LOAD
= 500FA
C
LDO1
= 2.2FF, I
LOAD
= 300mA
LDO1_ADEN = 1, V
ENLDO1
= 0V
1.4
0.7
550
200
25
75
45
2.2
1.0
21
40
300
2.716
2.522
1.746
3.300
2.800
2.600
1.800
3.399
2.884
2.678
1.854
300
mA
mA
mV
mV
dB
FV
RMS
FF
FA
Fs
I
V
3.090
V
5.5
1.648
V
CONDITIONS
MIN
TYP
MAX
UNIT
4
______________________________________________________________________________________
µPMICs for Multimedia Application Processors
in a 3.0mm x 2.5mm WLP
ELECTRICAL CHARACTERISTICS (continued)
(Typical
Operating Circuit,
V
IN
= 3.7V, C
BATT
= C
IN1
= C
IN2
= 2.2FF, C
REFBP
= 0.1FF, T
A
= -40NC to +85NC, unless otherwise noted.
Typical values are at T
A
= +25NC.) (Notes 3, 4)
PARAMETER
LDO2
Input Voltage Range
2.7
1.164
1.200
1.30
1.40
1.50
1.60
1.70
1.80
1.90
2.00
2.10
Programmable Output Voltage
I
LOAD
= 25mA, programmable output voltage 1.2V to
3.3V in 100mV steps
2.134
2.200
2.30
2.40
2.50
2.60
2.70
2.80
2.90
3.00
3.10
3.20
3.201
Output Voltage Accuracy
Output Current
Current Limit
Dropout Voltage
Load Regulation
Power-Supply Rejection
DV
LDO2
/DV
BATT
Output Noise Voltage
Output Capacitor for Stable
Operation (Note 6)
Ground Current
Startup Time from Shutdown
Shutdown Output Resistance
V
LDO2
= 0V
I
LOAD
= 200mA, T
A
= +25NC
1mA < I
LOAD
< 300mA
V
ENLDO2
= V
BATT
10Hz to 10kHz, C
LDO2
= 1FF, I
LOAD
= 30mA
100Hz to 100kHz, C
LDO2
= 1FF, I
LOAD
= 30mA
0mA < I
LOAD
< 300mA
0mA < I
LOAD
< 150mA
I
LOAD
= 500FA
C
LDO2
= 1FF, I
LOAD
= 300mA
LDO2_ADEN = 1, V
ENLDO2
= 0V
1.4
0.7
550
200
25
60
80
2.2
1.0
21
40
300
V
IN
= 5.5V with I
LOAD
= 1mA, and
V
IN
= 3.0V with I
LOAD
= 300mA
2.522
3.300
2.600
3.399
2.678
300
V
mA
mA
mV
mV
dB
FV
RMS
FF
FA
Fs
I
2.266
V
5.5
1.236
V
CONDITIONS
MIN
TYP
MAX
UNIT
MAX8893A/MAX8893B/MAX8893C
_______________________________________________________________________________________
5
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