參數(shù)資料
型號： MAX1802EHJ
廠商： MAXIM INTEGRATED PRODUCTS INC
元件分類： 穩(wěn)壓器
英文描述： Digital Camera Step-Down Power Supply
中文描述： 0.75 A SWITCHING CONTROLLER, 1000 kHz SWITCHING FREQ-MAX, PQFP32
封裝： 5 X 5 MM, 1 MM HEIGHT, TQFP-32
文件頁數(shù)： 2/28頁
文件大?。?/td> 469K
代理商： MAX1802EHJ
M
Digital Camera Step-Down
Power Supply
2
_______________________________________________________________________________________
ABSOLUTE MAXIMUM RATINGS
VDDM, VH, ONM to GND.......................................-0.3V to +12V
PGNDM, PGND to GND........................................-0.3V to +0.3V
VH to VDDM .............................................................-6V to +0.3V
VL to VDDM............................................................-12V to +0.3V
VL, ONC, ON1, FB_, DCON_ to GND ......................-0.3V to +6V
VDDC, REF, OSC, COMP_ to GND ..............-0.3V to (VL + 0.3V)
DHM, DLM to PGNDM............................-0.3V to (VDDM + 0.3V)
LXM to PGNDM ......................................-0.6V to (VDDM + 0.6V)
ELECTRICAL CHARACTERISTICS
(Circuit of Figure 1, V
VDDM
= 6V, V
VDDC
= 3V, PGNDM = PGND = GND, DCON1 = REF, V
ONM
= 3V, V
ONC
= V
ON1
= V
DCON2
=
V
DCON3
= 0,
T
A
= 0°C to +85°C
, unless otherwise noted. Typical values are at T
A
= +25°C.)
SYMBOL
CONDITIONS
GENERAL
Input Voltage Range
V
IN
SUPPLY CURRENT
Shutdown Supply Current
(from VDDM and VDDC)
V
FBM
= 1.5V, V
VDDC
= 0
Main DC-DC Converter
Supply Current (from VDDM)
V
FBM
= 1.5V, V
VDDC
= 3V
Main DC-DC Converter
Supply Current (from VDDC)
Main plus Core Supply Current
(from VDDC)
Main plus Auxiliary 1
Supply Current (from VDDC)
Main plus Auxiliary 2
Supply Current (from VDDC)
Main plus Auxiliary 3
Supply Current (from VDDC)
Total Supply Current
(from VDDC)
V
ONC
= V
ON1
= V
DCON2
= V
DCON3
= 3V
VL REGULATOR
VL Output Voltage
6V < V
VDDM
< 11V, 0.1mA < I
LOAD
< 10mA
VL Supply Rejection
3.5V < V
VDDM
< 11V, V
VDDC
= 0
VL Undervoltage Lockout
Threshold
VL Switchover Voltage to
VDDC
VL to VDDC Switch Resistance
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional
operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to
absolute maximum rating conditions for extended periods may affect device reliability.
DL1, DL2, DL3, LXC to PGND ................-0.3V to (VDDC + 0.3V)
Continuous Power Dissipation (T
A
= +70
°
C)
32-Pin TQFP (derate 11.1mW/
°
C above +70
°
C)........889mW
Operating Temperature Range ...........................-40
°
C to +85
°
C
Junction Temperature......................................................+150
°
C
Storage Temperature Range.............................-65
°
C to +150
°
C
Lead Temperature (soldering, 10s).................................+300
°
C
PARAMETER
MIN
2.5
TYP
MAX
11
UNITS
V
V
ONM
= 0
3
20
μA
370
35
600
55
μA
V
FBM
= 1.5V, V
VDDC
= 3V
270
450
μA
V
FBM
= V
FBC
= 1.5V, V
ONC
= 3V
410
700
μA
V
FBM
= V
FB1
= 1.5V, V
ON1
= 3V
470
750
μA
V
FBM
= V
FB2
= 1.5V, V
DCON2
= 3V
470
750
μA
V
FBM
= V
FB3
= 1.5V, V
DCON3
= 3V
470
750
μA
V
FBM
= V
FBC
= V
FB1
= V
FB2
= V
FB3
= 1.5V,
960
1700
μA
2.83
3.00
3.12
3
V
%
VL rising, 40mV hysteresis
2.25
2.40
2.50
V
VL rising, 100mV hysteresis
2.3
2.4
2.5
V
7
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參數(shù)描述
MAX1802EHJ+ 功能描述:直流/直流開關轉換器 Step-Up Slave DC/DC Controller RoHS:否 制造商:STMicroelectronics 最大輸入電壓:4.5 V 開關頻率: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 安裝風格:SMD/SMT
MAX1802EHJ+T 功能描述:直流/直流開關轉換器 Step-Up Slave DC/DC Controller RoHS:否 制造商:STMicroelectronics 最大輸入電壓:4.5 V 開關頻率: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 安裝風格:SMD/SMT
MAX1802EHJ-T 功能描述:直流/直流開關轉換器 Step-Up Slave DC/DC Controller RoHS:否 制造商:STMicroelectronics 最大輸入電壓:4.5 V 開關頻率: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 安裝風格:SMD/SMT
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