參數(shù)資料
型號(hào)： MAX8588ETM
廠商： MAXIM INTEGRATED PRODUCTS INC
元件分類(lèi)： 電源管理
英文描述： High-Efficiency, Low-IQ PMIC with Dynamic Core for PDAs and Smartphones
中文描述： 7-CHANNEL POWER SUPPLY SUPPORT CKT, QCC48
封裝： 6 X 6 MM, 0.80 MM HEIGHT, TQFN-48
文件頁(yè)數(shù)： 19/31頁(yè)
文件大?。?/td> 572K
代理商： MAX8588ETM
M
High-Efficiency, Low-I
Q
PMIC with
Dynamic Core for PDAs and Smartphones
______________________________________________________________________________________
19
V3 (VCC_CORE) Step-Down
DC-DC Converter
V3 is a 1MHz current-mode step-down converter. It sup-
plies loads up to 500mA.
The V3 output is set by the I
2
C serial interface to
between 0.7V and 1.475V in 25mV increments. The
default output voltage on power-up, and after a reset, is
1.3V. See the
Serial Interface
section for programming
details. See the
Applications Information
for instructions
on how to increase the V3 output voltage.
Forced PWM on REG3
Under moderate to heavy loading, the V3 always operates
in a low-noise PWM mode with constant frequency and
modulated pulse width. Switching harmonics generated by
fixed-frequency operation are consistent and easily filtered.
With light loads (<30mA) and PWM3 low, V3 operates
in an enhanced-efficiency idle mode during which the
converter switches only as needed to service the load.
With PWM3 high, V3 operates in low-noise forced-PWM
mode under all load conditions.
Linear Regulators (V4, V5, and V6)
V4 (VCC_PLL)
V4 is a linear regulator that provides a fixed 1.3V output
and supplies loads up to 35mA. The power input for the
V4 and V5 linear regulators is IN45, which is typically
connected to V2. To enable V4, drive ON4 high, or drive
ON4 low for shutdown. V4 is intended to connect to
VCC_PLL.
V5 (VCC_SRAM)
V5 is a linear regulator that provides a fixed 1.1V output
and supplies loads up to 35mA. The power input for the
V4 and V5 linear regulators is IN45, which is typically
connected to V2. To enable V5, drive ON5 high, or drive
ON5 low for shutdown. V5 is intended to connect to
VCC_SRAM.
V6 (VCC_USIM)
V6 is a linear regulator that supplies loads up to 35mA.
The V6 output voltage is programmed with the I
2
C seri-
al interface to 0V, 1.8V, 2.5V, or 3.0V. The power-up
default for V6 is 0V. See the
Serial Interface
section for
details on changing the voltage. The power input for the
V6 linear regulator is IN6, which is typically connected
to V1. To enable V6, drive ON6 high, or drive ON6 low
for shutdown. V6 is intended to connect to VCC_USIM.
V7 Always-On Output (VCC_BATT)
The V7 output is always active if V1 is enabled and in
regulation or if backup power is present. When ON1 is
high and V1 is in regulation, V7 is sourced from V1 by
an internal MOSFET switch. When ON1 is low or V1 is
out of regulation, V7 is sourced from BKBT by a second
on-chip MOSFET. V7 can supply loads up to 30mA. V7
is intended to connect to VCC_BATT on Intel CPUs.
Due to variations in system implementation, BKBT and
V7 can be utilized in different ways. See the
Backup-
Battery Configurations
section for information on how to
use BKBT and V7.
Quiescent Operating Current
in Various States
The MAX8588 is designed for optimum efficiency and
minimum operating current for all typical operating
modes, including sleep and deep sleep. These states
are outlined in Table 1.
Table 1. Quiescent Operating Current in Various States
OPERATING
POWER MODE
DESCRIPTION
TYPICAL NO-LOAD
OPERATING CURRENT
RUN
IDLE
SENSE
STANDBY
All supplies on and running.
All supplies on and running, peripherals on.
All supplies on, minimal loading, peripherals monitored.
All supplies on, minimal loading, peripherals not monitored.
225μA
SLEEP
P W R_E N contr ol ed vol ag es ( V 3, V 4, V 5) ar e off. V 1 and V 2 on.
60μA if V1 and V2 SLEEP LDOs on;
130μA if V1, V2 step-down DC-DCs enabled
DEEP SLEEP
All supplies off except V7. V7 biased from backup battery.
32μA if IN > DBI threshold;
4μA if IN < DBI threshold
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
MAX8588ETM+ 功能描述:PMIC 解決方案 High-Efficiency Low IQ PMIC RoHS:否 制造商:Texas Instruments 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:QFN-24 封裝:Reel
MAX8588ETM+T 功能描述:PMIC 解決方案 High-Efficiency Low IQ PMIC RoHS:否 制造商:Texas Instruments 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:QFN-24 封裝:Reel
MAX8588ETM-T 功能描述:PMIC 解決方案 High-Efficiency Low IQ PMIC RoHS:否 制造商:Texas Instruments 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:QFN-24 封裝:Reel
MAX858C/D 功能描述:直流/直流開(kāi)關(guān)轉(zhuǎn)換器 DICE SALES DICE RoHS:否 制造商:STMicroelectronics 最大輸入電壓:4.5 V 開(kāi)關(guān)頻率:1.5 MHz 輸出電壓:4.6 V 輸出電流:250 mA 輸出端數(shù)量:2 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT
MAX858CPA 功能描述:直流/直流開(kāi)關(guān)轉(zhuǎn)換器 RoHS:否 制造商:STMicroelectronics 最大輸入電壓:4.5 V 開(kāi)關(guān)頻率:1.5 MHz 輸出電壓:4.6 V 輸出電流:250 mA 輸出端數(shù)量:2 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT
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