参数资料
型号: MAX1802EHJ+
厂商: Maxim Integrated Products
文件页数: 4/28页
文件大小: 0K
描述: IC PWR SPLY STEP DOWN 32-TQFP
产品培训模块: Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
标准包装: 360
应用: 控制器,数字式相机
输入电压: 2.5 V ~ 11 V
输出数: 5
输出电压: 1.25 V ~ 5.5 V
工作温度: 0°C ~ 85°C
安装类型: 表面贴装
封装/外壳: 32-TQFP
供应商设备封装: 32-TQFP(5x5)
包装: 托盘
Digital Camera Step-Down
Power Supply
ELECTRICAL CHARACTERISTICS (continued)
(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.)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
MAIN SOFT-START
Soft-Start Interval
OSC falling edge
1024
OSC
cycles
MAIN DRIVERS (DHM, DLM)
Output Low Voltage
Output High Voltage
I SINK = 10mA
I SOURCE = 10mA
V VDDM -
0.11
0.11
V
V
Driver Resistance
Drive Current
I DHM = 10mA, I DLM = 10mA
Sourcing or sinking,
V DHM or V VL = V VDDM / 2
4
400
11
?
mA
CORE DC-DC CONVERTER (V ONC = 3V)
Core Output Voltage Adjust
Range
V OUT
1.25
5.5
V
Core Idle Mode Threshold
Core Current-Sense Amplifier
Transresistance
Core Slope Compensation Gain
R CSC
A VSWC
V OSC = 0.625V
70
0.7
0.16
190
1.0
0.20
320
1.3
0.24
mA
V/A
V/V
CORE ERROR AMPLIFIER (V ON C = 3V)
FBC Regulation Voltage
Unity gain configuration, FBC = COMPC
1.233
1.248
1.263
V
FBC to COMPC
Transconductance
FBC Input Leakage Current
G EA
Unity gain configuration, FBC = COMPC,
-5 μ A < I LOAD < 5 μ A
V FBC = 1.35V
70
100
5
160
100
μ S
nA
COMPC Minimum Output
Voltage
V FBC = 1.35V, COMPC open
0.3
V
COMPC Maximum Output
Voltage
V COMPM(MAX)
V FBC = 1.15V, COMPC open
2.00
2.14
2.27
V
CORE SOFT-START (V ONC = 3V)
Soft-Start Interval
CORE POWER SWITCHES (V ON C = 3V)
1024
OSC
cycles
LXC Leakage Current
V LXC = 0, 5.5V
0.01
20
μ A
Switch On-Resistance
P-Channel Current Limit
N-Channel Turn-Off Current
R DSN
R DSP
N-channel, I LXC = 0.75A
P-channel, I LXC = 0.75A
V OSC = 0.625V
18
150
180
0.75
100
350
400
180
m ?
A
mA
4
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