Document
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Features
• • • • • • •
DC to DC Converter 1.9V / 2.5V (DCDC1) LDO Regulator 2.7V / 2.8V (LDO1) LDO Regulator 2.8V (LDO2) LDO Regulator 2.8V (LDO3) LDO Regulator 2.47V / 2.66 (LDO4) - Backup Battery Supply LDO Regulator 1.72V / 2.66 (LDO5) - RTC Supply Reset Generator
1. Description
The AT73C211 is a power management device for digital, analog, interface, and, in some cases, RF and backup sections of add-on modules used as accessories in popular handheld devices like mobile phones, digital still cameras, PDAs and a wide range of multimedia devices. The AT73C211 can also be used to supply the CPU with a high-efficiency DC-DC Converter, a radio frequency transceiver with high PSRR and noise performance LDO regulators, or memories and analog sections with independent LDO channels. In addition, the AT73C211 integrates LDO regulators to recharge backup elements and convert its voltage to microcontroller RTC supply. LDO regulators and DC-DC converters output voltage can be programmed by a mask change.
Power Management AT73C211
6199AS–PMGMT–20-Sep-05
Note: This is a summary document. A complete document is available on our Web site at www.atmel.com.
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2. Functional Block Diagram
Figure 2-1. AT73C211 Block Diagram
VPAD VPAD
VBATT VBATT
UP-ON/OFF ON/OFF
EN
POR
UP-ON/OFF ON/OFF
10KHz OSC
PMC State Machine LS SPI
VBATT >3.2V
RESET GENERATOR 35ms
State Machine Reset
RESET-B
RESET-B
DGND LX VCORE GND1 GND
en_vcore en_vpad
CORE DC/ DC
VIN LP LX
reset
DCDC
FB
CREF ECO-MODE
CREF
GND
EN
EN
VCORE 1.9/2.5V / 300 mA
Vref
Over-Temp
EN
GND
ECO-MODE
ANALOG LDO
VIN VOUT
AVCC
VBATT
AGND GND EN-ANALOG-B
AVCC 2.7/ 2.8V / 130 mA
en_vcore EN BB1
LDO1
2.8V GND
AGND AGND
EN-ANALOG-B VBATT VBATT
VIN-REG1 VIN-REG2
PAD LDO
VIN VOUT
V-PAD
RTC SUPPLY BLOCK
BAT-RTC 2.47 /2.66V 5 mA VCC-RTC 1.72 /2.66V 0.5mA
GND GND BAT-RTC VCC-RTC VBACK VIN
LP EN
LDO2
GND GND
V-PAD 2.8V / 80 mA
LDO4 LDO5
2.7V BB1
DEEP DISCHARGED EN 2.6V
GND
BB1
AGND1 GND GND
GND
EN
VVIB
VBATT
VIBRATOR LDO
VIN VOUT VIB -OUT
en_vcore
EN-VIB
EN GND BB1 TEST GND
V-VIB 2.8V /130 mA
LDO3
GND DGND GND GND
2
AT73C211
6199AS–PMGMT–20-Sep-05
AT73C211
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3. Revision History
Table 3-1.
Doc. Rev. 6199AS
Revision History
Comments First issue. Change Request Ref.
3
6199AS–PMGMT–20-Sep-05
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