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参数资料
| 型号： | MAX1798EGP+T |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 2/19页 |
| 文件大小： | 0K |
| 描述： | IC POWER SUPPLY CDMA 20-QFN |
| 标准包装： | 2,500 |
| 应用： | 手机，CDMA 手持话机 |
| 电流 - 电源： | 367µA |
| 电源电压： | 2.5 V ~ 5.5 V |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 20-QFN 裸露焊盘 |
| 供应商设备封装： | 28-QFN/MLP 裸露焊盘（5x5） |
| 包装： | 带卷 (TR) |
CDMA Cellular/PCS System
Power Supplies
ABSOLUTE MAXIMUM RATINGS
OFF , DR1, DR2 to GND............................................-0.3V to +6V
IN1, IN2/3, IN4/5, DIN (SDA) to GND .......................-0.3V to +6V
SCLK (SCK), BP, ON to GND...................................-0.3V to +6V
RSO , ONO to GND .................................-0.3V to (V OUT1 + 0.3V)
PGND to GND.....................................................................±0.3V
OUT1, CS (AS) to GND ..............................-0.3V to (V IN1 + 0.3V)
OUT2, OUT3 to GND...............................-0.3V to (V IN2/3 + 0.3V)
OUT4, OUT5 to GND...............................-0.3V to (V IN4/5 + 0.3V)
Continuous Sink Current
RSO ................................................................................25mA
Continuous Power Dissipation (T A = +70°C)
20-Pin TQFN (derate 33.8mW/°C above +70°C) ...............2W
20-Pin TSSOP (derate 37.7mW/°C above +70°C) .............2W
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
Soldering Temperature (reflow) .......................................+260°C
DR1, DR2...............................................................100mA RMS
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.
-ELECTRICAL CHARACTERISTICS
(V IN1 = V IN2/3 = V IN4/5 = V SCLK (SCK) = V DIN (SDA) = V CS (AS) = V OFF = 3.6V; ON = GND = PGND = 0; RSO, ONO, DR1, DR2 =
open; BP bypassed with 0.01μF, OUT1 bypassed with 4.7μF; OUT2, OUT3, OUT4, OUT5 bypassed with 2.2μF; OUT1–5 set to 2.98V,
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
IN1, IN2/3, IN4/5 Operating
Voltage
2.5
5.5
V
Undervoltage Lockout IN1
Undervoltage Lockout IN2/3
Undervoltage Lockout IN4/5
Power-On Reset Threshold
Supply Current in Shutdown
Supply Current (Standby)
Supply Current (All Outputs On)
BP Voltage
BP Supply Rejection
V UVLO-1
V UVLO-2/3
V UVLO-4/5
I SHDN
I ON
IN1 rising edge
IN2/3 rising edge
IN4/5 rising edge
IN1 falling edge
OFF = 0, ON = IN1
OUT1 ON, other regulators OFF I OUT1 = 0
All regulators ON, I OUT_ = 0
I BP ≤ 1nA
2.5V ≤ V IN1 ≤ 5.5V
2.10
2.10
2.10
0.9
1.231
2.30
2.30
2.30
1
113
367
1.250
0.2
2.45
2.45
2.45
2.1
10
230
680
1.269
5
V
V
V
V
μA
μA
μA
V
mV
OUT1 REGULATOR
Output Accuracy
Output Accuracy
(Line and Load)
Nominal Voltage Adjust Range
Dropout Voltage
Load Regulation
I OUT1 = 70mA (Note 3)
1mA ≤ I OUT1 ≤ 300mA,
2.5V ≤ V IN1 ≤ 5.5V, V OUT1 = 1.8V (Note 3)
32 steps through serial interface; Tables 2, 3
I OUT1 = 1mA (Notes 1, 3)
I OUT1 = 200mA (Notes 1, 3)
0.1mA ≤ I OUT1 ≤ 300mA
-2
-3
1.8
1
73
-0.003
2
3
3.3
125
%
%
V
mV
%/mA
Line Regulation
2.5V ≤ V IN1 ≤ 5.5V, V OUT1 = 1.8V (Note 3)
-0.15
-0.03
0.11
%/V
Current Limit
Output-Discharge Switch
Resistance in Shutdown
Regulator output turned off
320
500
25
850
300
mA
?
OUT1 Reset Threshold
OUT1 rising and
falling
(MAX1798/MAX1799)
(MAX1798A/MAX1799A)
-9.5
-15
-7.5
-13
-5.5
-11
%
Output Voltage Noise
f = 10Hz to 100kHz, C OUT = 4.7μF
45
μV RMS
2
_______________________________________________________________________________________
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