參數(shù)資料
型號: MAX8867
廠商: Maxim Integrated Products, Inc.
英文描述: Low-Noise, Low-Dropout, 150mA Linear Regulators in SOT23
中文描述: 低噪聲、低壓差、150mA線性穩(wěn)壓器,SOT23封裝
文件頁數(shù): 12/20頁
文件大?。?/td> 257K
代理商: MAX8867
M
Wireless and S atellite Handset
Power-Management ICs
12
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Detailed Desc ription
The MAX886/MAX888 contain one high-efficiency, step-
down DC-DC converter, four low-dropout linear regula-
tors, and one regulated charge pump. The output
voltages of the switching regulator and the linear regula-
tors are software-programmable through the serial inter-
face. The regulated charge-pump output is factory set
at 5.25V. The devices also include reset and start-up
timers and a low-battery detect comparator (Figure 3).
500mA DC-DC Buc k Regulator 0
Regulator 0 is a low-noise, step-down, synchronous
DC-DC converter that can source a minimum of
500mA. High operating frequency (up to 925kHz) mini-
mizes output voltage ripple and reduces the size and
cost of external components. Guaranteed 100% duty-
cycle operation provides the lowest possible dropout
voltage, extending the useful life of the battery supply.
5
IN1
OUT1
IN2
OUT2
IN3
OUT3
IN5
OUT5
CVH
CVL
IN0
BATT
OUT0
C+
C-
PGND
IN4
OUT4
ONSTAT
LBO
ON1
ON2
ON5
ON0
LX
ON4
SDA
SCL
SYNC
RESET
ON
OFF
LBI
REF
LBHYS
DGND
LOGIC
DECODER
RESET AND
START UP
TIMER
REG4
CHARGE
PUMP
REGULATOR
OSCILLATOR
SWITCHING
REGULATOR
LINEAR
REG1
LINEAR
REG5
REF
DAC5
DAC0
DAC2
DAC1
LINEAR
REG2
DAC3
LINEAR
REG3
OUT2
10k
+
GND
ON2
Figure 3. Functional Diagram
相關(guān)PDF資料
PDF描述
MAX886_EUK25 Low-Noise, Low-Dropout, 150mA Linear Regulators in SOT23
MAX886_EUK28 Low-Noise, Low-Dropout, 150mA Linear Regulators in SOT23
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MAX886_EUK32 Low-Noise, Low-Dropout, 150mA Linear Regulators in SOT23
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