Datasheet LT3503 (Analog Devices) - 5
| 制造商 | Analog Devices |
| 描述 | 1A, 2.2MHz Step-Down Switching Regulator in 2mm x 3mm DFN |
| 页数 / 页 | 20 / 5 — TYPICAL PERFOR A CE CHARACTERISTICS TA = 25. C unless otherwise noted. … |
| 文件格式/大小 | PDF / 438 Kb |
| 文件语言 | 英语 |
TYPICAL PERFOR A CE CHARACTERISTICS TA = 25. C unless otherwise noted. Typical Minimum Input Voltage. SHDN Pin Current
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LT3503
W U TYPICAL PERFOR A CE CHARACTERISTICS TA = 25
°
C unless otherwise noted. Typical Minimum Input Voltage Typical Minimum Input Voltage SHDN Pin Current (VOUT = 3.3V) (VOUT = 5V)
50 5.5 7.7 45 40 7.2 5.0 35 µA) 30 6.7 ( 25 4.5 I SHDN 20 6.2 15 INPUT VOLTAGE (V) INPUT VOLTAGE (V) 4.0 10 5.7 5 0 3.5 5.2 0 2 4 6 8 10 12 14 16 18 20 1 10 1OO 1000 1 10 100 1000 VSHDN (V) LOAD CURRENT (mA) LOAD CURRENT (mA) 3503 G12 3503 G13 3503 G14
Switch Current Limit Switch Current Limit
2.0 1.8 1.9 1.7 1.8 1.6 1.7 TYPICAL 1.5 1.6 1.5 1.4 1.4 1.3 1.3 MINIMUM 1.2 SWITCH CURRENT LIMIT (A) 1.2 SWITCH CURRENT LIMIT (A) 1.1 1.1 1.0 1.0 –45 –25 -5 15 35 55 75 0 20 40 60 80 100 TEMPERATURE (°C) DUTY CYCLE (%) !#! /# 3503 G16 3503f 5
W U TYPICAL PERFOR A CE CHARACTERISTICS TA = 25
°
C unless otherwise noted. Typical Minimum Input Voltage Typical Minimum Input Voltage SHDN Pin Current (VOUT = 3.3V) (VOUT = 5V)
50 5.5 7.7 45 40 7.2 5.0 35 µA) 30 6.7 ( 25 4.5 I SHDN 20 6.2 15 INPUT VOLTAGE (V) INPUT VOLTAGE (V) 4.0 10 5.7 5 0 3.5 5.2 0 2 4 6 8 10 12 14 16 18 20 1 10 1OO 1000 1 10 100 1000 VSHDN (V) LOAD CURRENT (mA) LOAD CURRENT (mA) 3503 G12 3503 G13 3503 G14
Switch Current Limit Switch Current Limit
2.0 1.8 1.9 1.7 1.8 1.6 1.7 TYPICAL 1.5 1.6 1.5 1.4 1.4 1.3 1.3 MINIMUM 1.2 SWITCH CURRENT LIMIT (A) 1.2 SWITCH CURRENT LIMIT (A) 1.1 1.1 1.0 1.0 –45 –25 -5 15 35 55 75 0 20 40 60 80 100 TEMPERATURE (°C) DUTY CYCLE (%) !#! /# 3503 G16 3503f 5