FUJITSU MICROELECTRONICS
DATA SHEET
DS04–27266–2E
ASSP (for Mobile Terminals)
Power Management IC for Mobile Terminals
3ch DC/DC Converter
+
4ch LDO
MB39C316
■
DESCRIPTION
The MB39C316 is equipped with the 3 ch DC/DC converter and the 4 ch linear regulator (LDO), and is the
power supply LSI for mobile terminals which operate in the range of power supply voltage with 1-cell Li-ion
power by 1ch high efficiency voltage step-up/down DC/DC.
The MB39C316 contains the 2ch synchronous rectification DC/DC converter with current mode system and
the 1ch voltage step-up/down DC/DC converter. Detecting load current by each DC/DC converter alternates
the Normal mode (PWM) with the ECO mode (PFM) automatically.
MB39C316 has the built-in 4ch LDO which is suitable to supply voltage to the system block and the built-in
1ch LDO which generates stable internal reference voltage.
It is possible to control a notice of internal condition, the power supply and reset in order to support the
communication interface which is compliant with the I
2
C bus standard.
■
FEATURES
•
•
•
•
•
•
•
•
•
Input voltage range
: 2.7 V to 5.5 V
Step-down regulators
: 2 channels
Step-up/down regulator
: 1 channel
Linear regulator (LDO)
: 4 channels
Possible to select output voltage : LDO3 1.2 V/1.3 V (register setting)
On/Off control of LDO and DC/DC converter by external signals and register settings
Compliant with I
2
C bus standard (Max 400 kbps)
Possible to output the 32.768 kHz clock by connecting crystal oscillator
Protection function:Over current protection (OCP), Output short circuit protection (SCP),
Under voltage lock out protection (UVLO), Over temperature protection (OTP)
• Package
: 49 pin, WL-CSP (3.14 mm
×
3.11 mm
×
0.8 mm)
■
APPLICATIONS
• Mobile WiMAX terminals
• Other mobile terminals etc.
Copyright©2009 FUJITSU MICROELECTRONICS LIMITED All rights reserved
2009.1
MB39C316
■
PIN ASSIGNMENT
(BOTTOM VIEW)
G
F
E
D
C
B
A
7
NC3
VDD31
SWOUT31
DGND31
SWIN31
DDOUT31
NC2
7
6
FB3
VDD32
SWOUT32
DGND32
SWIN32
DDOUT32
OSCIN
6
5
AGND
VCC_D
LDOCNT1
LDOCNT2
VIN_RTC
GND1
OSCOUT
5
4
SWOUT1
VDD1
FB1
SCL
V24IO
VFIL2
VFIL1
4
3
DGND1
DGND2
FB2
SDA
ONOFF
VCC1
LDOOUT2
3
2
SWOUT2
VDD2
XRST2
GND2
VCC4
VCC2
VCC3
2
1
NC4
RTC_CLK
XRST1
LDOOUT4
LDOOUT1
LDOOUT3
NC1
1
G
F
E
D
C
B
A
2
DS04–27266–2E
MB39C316
■
PIN DISCRIPTIONS
Block
Pin No.
B3
B2
A2
External
power
supply
C2
F5
F4
F2
F7
F6
C5
E5
D5
D1
B1
C1
A3
G4
Constant
voltage
power
supply
E4
G2
E3
E7
E6
C7
C6
B7
B6
G6
I
2
C
interface
D4
D3
A6
RTC
A5
F1
C3
Start/Stop
E1
E2
C4
Reference
voltage
A4
B4
Pin name
VCC1
VCC2
VCC3
VCC4
VCC_D
VDD1
VDD2
VDD31
VDD32
VIN_RTC
LDOCNT1
LDOCNT2
LDOOUT4
LDOOUT3
LDOOUT1
LDOOUT2
SWOUT1
FB1
SWOUT2
FB2
SWOUT31
SWOUT32
SWIN31
SWIN32
DDOUT31
DDOUT32
FB3
SCL
SDA
OSCIN
OSCOUT
RTC_CLK
ONOFF
XRST1
XRST2
V24IO
VFIL1
VFIL2
I/O
I
I
I
I
I
I
I
I
I
I
I
I
O
O
O
O
O
I
O
I
⎯
⎯
⎯
⎯
O
O
I
I
I/O
I
O
O
I
O
O
O
O
O
Descriptions
Power supply input, Power supply input pin for LDO2, LDO3
control
Power supply input pin for LDO2 power
Power supply input pin for LDO3 power
Power supply input pin for LDO1, LDO4 control/power
Power supply input pin for DC/DC converter control
Power supply input pin for DC/DC1 converter power
Power supply input pin for DC/DC2 converter power
Power supply input pin 1 for DC/DC3 converter power
Power supply input pin 2 for DC/DC3 converter power
Power supply input pin for RTC
LDO output control input pin 1
LDO output control input pin 2
LDO4 output pin (
+
2.9 V)
LDO3 output pin (
+
1.2 V/1.3 V)
LDO1 output pin (
+
2.9 V)
LDO2 output pin (
+
1.2 V)
DC/DC1 converter inductance connection output pin
DC/DC1 converter output voltage feedback input pin (1.2 V)
DC/DC2 converter inductance connection output pin
DC/DC2 converter output voltage feedback input pin (1.8 V)
DC/DC3 converter inductance connection pin 1
DC/DC3 converter inductance connection pin 2
DC/DC3 converter inductance connection pin 1
DC/DC3 converter inductance connection pin 2
DC/DC3 converter output pin 1
DC/DC3 converter output pin 2
DC/DC3 converter output voltage feedback input pin (3.3 V)
I
2
C interface clock input pin
I
2
C interface data I/O pin
Input pin for crystal oscillator connection
Output pin for crystal oscillator connection
32.768 kHz Clock output pin
Enable pin for the MB39C316
Reset output pin 1
Reset output pin 2
Power supply output pin for internal 2.4 V I/O
Reference voltage output pin 1 (0.47
µF
connected )
Reference voltage output pin 2 (0.47
µF
connected )
(Continued)
DS04–27266–2E
3
MB39C316
(Continued)
Block
Pin No.
A1
TEST
A7
G7
G1
B5
D2
G5
GND
G3
F3
D7
D6
Pin name
NC1
NC2
NC3
NC4
GND1
GND2
AGND
DGND1
DGND2
DGND31
DGND32
I/O
⎯
⎯
⎯
⎯
⎯
⎯
⎯
⎯
⎯
⎯
⎯
Descriptions
Pin for TEST (Set to Non Connect. Prohibited to connect to others.)
Pin for TEST (Set to Non Connect. Prohibited to connect to others.)
Pin for TEST (Set to Non Connect. Prohibited to connect to others.)
Pin for TEST (Set to Non Connect. Prohibited to connect to others.)
Ground pin (COMMON, RTC)
Ground pin (LDO, INPUT_IF, OUTPUT_IF)
Ground pin (DC/DC converter control block)
DC/DC1 converter ground pin
DC/DC2 converter ground pin
DC/DC3 converter ground pin 1
DC/DC3 converter ground pin 2
4
DS04–27266–2E
MB39C316
■
BLOCK DIAGRAM
MB39C316
VCC1
ONOFF
XRST1
XRST2
I
2
C interface
Control start/stop
RTC
SCL
SDA
VIN_RTC
OSCIN
OSCOUT
RTC_CLK
LDOCNT1
LDOCNT2
VCC4
Constant voltage power supply
VCC_D
DC/DC1 converter
step down
1.200 V 800 mA
LDO1
2.875 V 200 mA
VDD1
SWOUT1
FB1
DGND1
VDD2
SWOUT2
LDOOUT1
DC/DC2 converter
step down
1.825 V 600 mA
FB2
DGND2
VDD31
VDD32
SWOUT31
SWOUT32
SWIN31
SWIN32
DDOUT31
DDOUT32
FB3
DGND31
DGND32
LDOOUT4
LDO4
2.925 V 6.5 mA
VCC2
LDOOUT2
LDO2
1.225 V 260 mA
DC/DC3 converter
step up/down
3.300 V 650 mA
VCC3
LDOOUT3
LDO3
1.200 V, 1.300 V
84
mA
Reference voltage output
Protection circuit
(UVLO, OTP, SCP, OCP)
LDO5
NC1
NC2
NC3
NC4
V24IO
VFIL1
VFIL2
Test circuit
GND1
GND2
AGND
DS04–27266–2E
5
