Features
•
•
•
•
•
•
•
•
300 mA/1.9V/2.5V DC to DC Converter
80 mA/2.8V Dual-mode LDO Regulator (LDO1)
130 mA/2.7V/2.8V LDO Regulator (LDO2)
130 mA/2.8V LDO Regulator (LDO3)
130 mA/2.8V LDO Regulator (LDO4)
10 mA/1.8/2.8V Dual-mode LDO Regulator (LDO5)
Available in a 5 mm x 5 mm 32-pin QFN or 5 mm x 5 mm 32-ball BGA Package
Applications: Mobile Phones, Digital Cameras, PDAs, SmartPhones, DECT Phones,
Handset Devices
Description
The AT73C212 provides a power management solution for integration of multimedia
features in mid-level mobile phone handsets. These features may include a camera
module (CMOS or CCD), audio generators for a polyphonic or MP3 ringer, a co-pro-
cessor for JPEG encoding and an external memory module.
The AT73C212 contains six power supplies: five linear voltage regulators providing
output voltage from 1.8V to 2.8V and output current from 10 mA to 130 mA and a DC -
DC converter supplying 300 mA from 1.9V or 2.5V.
The device is available in two compact, space-saving package options: 32-ball BGA or
32-pin QFN.
Power
Management for
Mobiles (PM)
AT73C212
2743A–PMGMT–05/04
Block Diagram
Figure 1.
AT73C212 Block Diagram
AT73C212
Internal
High Accuracy
Oscillator
DC - DC Buck
1.9V or 2.5V
300 mA
VOUT0
C
REF
Internal
Voltage
Reference
LDO1
2.8V
80 mA
High Power/Low Power
VOUT1
DM
DV
LDO2
2.7V or 2.8V
130 mA
VOUT2
LDO3
2.8V
130 mA
VOUT3
LDO4
2.8V
130 mA
VOUT4
Main Battery
LDO5
1.8V or 2.8V
10 mA
High Power/Low Power
VOUT5
V
BAT
Absolute Maximum Ratings
Storage Temperature ..................................... -55°C to +150°C
Operating Temperature.................................... -40°C to +85°C
Power Supply Input..............................................-0.3V to 5.5V
*NOTICE:
Stresses beyond those listed under “Absolute
Maximum Ratings” may cause permanent dam-
age to the device. This is a stress rating only and
functional operation of the device at these or
other conditions beyond those indicated in the
operational sections of this specification is not
implied. Exposure to absolute maximum rating
conditions for extended periods may affect
device reliability.
IO Input (all except power supply) ......................... -0.3 to 2.8V
2
AT73C212
2743A–PMGMT–05/04
AT73C212
Pin List
Table 1.
Pin List
Ball
A1
A2
A3
A4
A5
A6
A7
B1
B2
B3
B4
B5
B6
B7
C1
C2
C3
C4
C5
C6
C7
D1
D2
D3
D4
D5
D6
D7
E1
E2
E3
E4
E5
E6
GNDL
EN5
Ground
I
VIND
VINE
Supply
Supply
DV
ON
I
I
GNDG
EN4
GNDH
GNDI
CAP
GNDC
Ground
I
Ground
Ground
O
Ground
GNDF
Ground
VOUT2
EN2
VOUT1
O
I
O
Signal
VOUT4
GNDB
VINC
GNDD
VINB
VINT
GNDE
VOUT3
EN3
Type
O
Ground
Supply
Ground
Supply
O
Ground
O
I
Description
LDO4 output voltage
LDO3 and LDO4 ground
LDO3 and LDO4 input supply
Digital ground
LDO1 and LDO2 input supply
Decoupling capacitor for internal voltage supply
LDO1 and LDO2 ground
LDO3 output voltage
Enable LDO3
Not connected
LDO2 output voltage
Enable LDO2
LDO1 output voltage
Not connected
Analog ground
Not connected
Analog ground
Enable LDO4
Analog ground
Analog ground
Decoupling capacitor for voltage reference
LDO5 ground
Not connected
Not connected
Programmable Voltage Selection
Switch on PMU
Not connected
LDO5 input supply
Battery voltage
Not connected
Not connected
Not connected
Analog ground
Enable LDO5
3
2743A–PMGMT–05/04
Table 1.
Pin List
Ball
E7
F1
F2
F3
F4
F5
F6
F7
G1
G2
G3
G4
G5
G6
G7
VOUT0
DM
VINA
GNDA
O
I
Supply
Ground
Reset
LX
O
I
Signal
VOUT5
Type
O
Description
LDO5 output voltage
Not connected
Not connected
Not connected
Not connected
Not connected
PMU start up OK
Inductor connection
Not connected
Not connected
Not connected
DCDC output voltage
Dual power selection
DCDC input supply
DCDC ground
4
AT73C212
2743A–PMGMT–05/04
AT73C212
DC to DC Electrical Characteristics
T
AMB
= - 20°C to 85°C, V
BAT
= 3V to 4.2V unless otherwise specified. C
OUT
= 22µF - Tantalum - L
OUT
= 10 uH
Table 2.
DC to DC Electrical Characteristics
Symbol
V
BAT
V
OUT
V
OUT
V
OUT
I
OUT
I
SD
Eff
∆V
DCLD
∆V
TRLD
∆V
DCLE
∆V
TRLE
V
OUT
V
OUT
I
OUT
V
DROP
I
QC
∆V
DCLD
∆V
TRLD
∆V
DCLE
∆V
TRLE
PSRR
∆V
LPFP
∆V
FPLP
Parameter
Operating Supply Voltage
Output Voltage
Output Voltage
Output Voltage
Output Current
Shut DownCurrent
Efficiency
Static Load Regulation
Transient Load Regulation
Static Line Regulation
Transient Line Regulation
Output Voltage
Output Voltage
Output Current
Dropout Voltage
Quiescent Current
Static Load Regulation
Transient Load Regulation
Static Line Regulation
Transient Line Regulation
Ripple Rejection
Overshoot Voltage
Undershoot Voltage
I
OUT
= 10 mA to 200 mA @1.9V
DC - DC Mode (10% to 90% of I
OUT
max)
DM = 0
DC - DC Mode (10% to 90% of I
OUT
max)
T
R
=T
F
= 5 us; DM = 0
DC - DC Mode (10% to 90% of I
OUT
max,
3.2V to 4.2V) DM = 0
DC - DC Mode (10% to 90% of I
OUT
max,
3.2V to 4.2V) DM = 0
LDO Mode (DV = 0, DM = 1)
LDO Mode (DV = 1, DM = 1)
LDO Mode (DM = 1)
LDO Mode (DM = 1)
LDO Mode (DM = 1)
LDO Mode (0 to 10 mA); DM = 1
LDO Mode (0 to 10 mA) , T
R
= T
F
= 5 µs,
DM = 1
LDO Mode (3.2V to 4.2V); DM = 1
LDO Mode (3.2V to 4.2V); DM = 1
LDO Mode up to 1KHz; DM = 1
Voltage drop from LDO (LP) to DC - DC (FP)
Voltage drop from DC - DC (FP) to LDO (LP)
- 15
40
45
0
0
10
11
1.75
2.35
85
PWM Mode (DM = 0, DV = 0)
Overall accuracy
Initial Voltage after Trimming
PWM Mode (DV = 1, DM = 0)
PWM Mode (DM = 0)
2.45
Conditions
Min
3
1.80
1.90
1.9 ± 2%
2.50
150
0.1
90
7
30
20
35
1.80
2.40
1.85
2.45
10
400
14
50
10
8
15
2.55
300
1
Typ
Max
5.5
2.0
Unit
V
V
V
V
mA
µA
%
mV
mV
mV
mV
V
V
mA
mV
µA
mV
mV
mV
mV
dB
mV
mV
Table 3.
DC to DC External Components
Symbol
C
OUT
C
ESR
L
OUT
L
ESR
Parameter
Output Capacitor Value
Output Capacitor ESR
Output Inductor Value
Output Inductor ESR
At 100 kHz
8
10
Conditions
Min
17
Typ
22
Max
26
100
12
1.1
Unit
µF
mOhm
µH
Ohm
5
2743A–PMGMT–05/04
京公网安备 11010802033920号
EEWORLD
