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 (ldo 4) - 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 pop- ular 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 radi o frequency transceiver with high psrr and noise performance ldo regulators, or memories and analog sections with indepen- dent ldo channels. in addition, the AT73C211 integrates ldo r egulators 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 docu ment. a complete document is available on our web site at www.atmel.com.
2 6199as?pmgmt?20-sep-05 AT73C211 2. functional block diagram figure 2-1. AT73C211 block diagram reset generator 35ms vpad reset-b dgnd vin en fb gnd core dc/ dc gnd vcore 1.9/2.5v / 300 ma vcore gnd1 vin en vout gnd vin en vout gnd analog ldo avcc agnd vin en gnd pad ldo vback vbatt on/off up-on/off vin-reg1 vin-reg2 agnd rtc supply block vpad gnd vbatt 2.8v / 80 ma en-analog-b deep discharged 2.6v vin en vout gnd vib -out vvib en-vib gnd gnd lx v-vib 2.8v /130 ma eco-mode lx avcc 2.7/ 2.8v / 130 m a bb1 2.8v lp dcdc gnd lp vibrator ldo dgnd bb1 agnd1 gnd gnd en-analog-b vbatt pmc state machine ls spi por 10khz osc over-temp en up-on/off on/off eco-mode gnd en state machine reset reset bat-rtc 2.47 /2.66v 5 ma vcc-rtc 1.72 /2.66v 0.5ma vcc-rtc bat-rtc gnd gnd 2.7v bb1 gnd vref cref agnd v-pad vbatt cref reset-b en en_vcore en_vcore bb1 gnd test en_vpad vbatt>3.2v en gnd en_vcore ldo1 ldo2 ldo3 ldo4 ldo5 vbatt vbatt v-pad
3 6199as?pmgmt?20-sep-05 AT73C211 3. revision history table 3-1. revision history doc. rev. comments change request ref. 6199as first issue.
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