参数资料
| 型号： | MAX1515ETG+ |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 3/24页 |
| 文件大小： | 0K |
| 描述： | IC REG DDR LV 24-TQFN |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 75 |
| 应用： | 转换器，DDR |
| 输入电压： | 1.3 V ~ 3.6 V |
| 输出数： | 2 |
| 输出电压： | 0.5 V ~ 2.7 V |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 24-WFQFN 裸露焊盘 |
| 供应商设备封装： | 24-TQFN-EP（4x4） |
| 包装： | 管件 |
Low-Voltage, Internal Switch,
Step-Down/DDR Regulator
ELECTRICAL CHARACTERISTICS (continued)
(Circuit of Figure 1, V IN = +3.3V, V CC = V DD = SHDN = MODE = +3.3V, V REFIN = V REF , SKIP = GND, T A = 0°C to +85°C , unless oth-
erwise noted. Typical values are at T A = +25°C.)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
Sink-Mode Detect Threshold
Source-Mode Detect Threshold
MOSFET On-Resistance
V FB -
V REFIN
V FB -
V REFIN
R NMOS
MODE = V CC , V REFIN = +0.5V to +1.5V
MODE = V CC , V REFIN = +0.5V to +1.5V
V CC = V DD = V IN = +3.3V, I LOAD = 0.5A
+18
-32
0.04
+32
-18
0.10
mV
mV
Ω
Switching Frequency
Maximum Output Current
f SW
I OUT(RMS)
(Note 2)
(Note 3)
3.3
1
MHz
A
Current-Limit Threshold
I LIMIT_P
V IN = +3.3V, MODE = GND or V CC ,
positive or sourcing mode
3.60
4.2
4.85
A
I LIMIT_N
MODE = V CC , negative or sinking mode
-3.0
Pulse-Skipping Current Threshold
Zero Cross Current Threshold
I SKIP_P
I ZX_P
V IN = +3.3V, MODE = GND or V CC , positive
or sourcing mode
V IN = +3.3V, MODE = GND or V CC , positive
or sourcing mode
0.5
0.8
200
1.1
A
mA
I ZX_N
MODE = V CC , negative or sinking mode
-350
FB Input Bias Current
FB = 1.01 x V TARGET (Note 4)
-50
+50
nA
Off-Time
t OFF
V FB > 0.3 x V TARGET
(Note 4)
R TOFF = 33.2k Ω
R TOFF = 110k Ω
R TOFF = 499k Ω
0.270
0.85
3.8
0.34
1.00
4.5
0.405
1.15
5.2
μs
Extended Off-Time
Minimum On-Time
Maximum On-Time
t OFF(EXT)
t ON(MIN)
t ON(MAX)
V FB < 0.3 x V TARGET (Notes 2, 4)
(Note 2)
5
4x
t OFF
180
11
μs
ns
μs
SS Source Current
SS Sink Current
I SS(SRC)
I SS(SNK)
3.50
100
5.25
6.75
μA
μA
MODE = GND,
FBSEL0 = GND,
FBSEL1 = GND,
450
800
No-Load Supply Current
I CC + I DD
+ I IN
V IN = 3.3V
(not switching) (Note 4)
V FB = 1.01 x
V TARGET
MODE = V CC ,
V FB = V TARGET
700
1200
μA
Shutdown Supply Currents
I CC + I DD
+ I IN
I IN
I LX
SHDN = MODE = GND, LX = 0V or 3.3V
SHDN = MODE = GND, LX = 0V
SHDN = MODE = GND, LX = 3.3V
0.2
0.2
0.1
20
20
20
μA
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