參數(shù)資料
型號(hào)： ATR0621P1-7FQY
廠商： ATMEL CORP
元件分類： 無(wú)繩電話/電話
英文描述： TELECOM, CELLULAR, BASEBAND CIRCUIT, PBGA100
封裝： 9 X 9 MM, 0.80 MM PITCH, ROHS COMPLIANT, LFBGA-100
文件頁(yè)數(shù)： 21/31頁(yè)
文件大小： 477K
代理商： ATR0621P1-7FQY
28
4890C–GPS–10/06
ATR0621
12. LDOBAT and Backup Domain
The LDOBAT is a built in low dropout voltage regulator which provides the supply voltage
VBAT18 for the RTC, backup SRAM, P9, P13, P22, P31, NSLEEP and NSHDN. The LDOBAT
voltage regulator switches in battery mode if LDOBAT_IN falls below 1.5V.
Table 12-1.
Electrical Characteristics of LDOBAT
Parameter
Conditions
Min.
Typ.
Max.
Unit
Supply voltage
LDOBAT_IN
2.3
3.6
V
Supply voltage VBAT
1.5
3.6
V
Output voltage (VBAT18) If switch connects to LDOBAT_IN
1.65
1.8
1.95
V
Output current (VBAT18) No external load allowed
1.5
mA
Current consumption
LDOBAT_IN(1)
After startup (sleep/backup mode), at
room temperature
15
A
Current consumption
VBAT(1)
After startup (backup mode and
LDOBAT_IN = 0V), at room temperature
10
A
Current consumption
After startup (normal mode), at room
temperature
1.5
mA
Note:
1. If no current is caused by outputs (pad output current as well as current across internal
pull-up resistors)
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