参数资料
| 型号： | SC196ULTRT |
| 厂商： | Semtech |
| 文件页数： | 12/18页 |
| 文件大小： | 0K |
| 描述： | IC REG BUCK SYNC ADJ 1.5A 10MLPD |
| 标准包装： | 1 |
| 类型： | 降压（降压） |
| 输出类型： | 可调式 |
| 输出数： | 1 |
| 输出电压： | 0.8 V ~ 5.5 V |
| 输入电压： | 2.5 V ~ 5.5 V |
| PWM 型： | 电流模式 |
| 频率 - 开关： | 1MHz |
| 电流 - 输出： | 1.5A |
| 同步整流器： | 是 |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 10-UFDFN 裸露焊盘 |
| 包装： | 标准包装 |
| 供应商设备封装： | 10-MLPD-UT（3x3） |
| 产品目录页面： | 1357 (CN2011-ZH PDF) |
| 其它名称： | SC196ULDKR |
SC196
POWER MANAGEMENT
Typical Characteristics
Ef ? ciency vs. Load Current V OUT = 3.3V
PRELIMINARY
Ef ? ciency vs. Load Current V OUT = 2.5V
100
90
80
70
R FB1 +R FB2 =10K Ω
V IN =3.9V PSAVE
100
90
80
70
R FB1 +R FB2 =10K Ω
V IN =3.3V PSAVE
V IN =5.0V PSAVE
60
50 V IN =4.2V PSAVE
40
30
20
10
V IN =3.2V PWM
V IN =4.2V PWM
V IN =5.0V PWM
60
50 V IN =4.2V PSAVE
40 V IN =5.0V PSAVE
30
20
10
V IN =3.3V PWM
V IN =4.2V PWM
V IN =5.0V PWM
0
0.0001
0.001
0.01
I OUT (A)
0.1
1
10
0
0.0001
0.001
0.01
I OUT (A)
0.1
1
10
Ef ? ciency vs. Load Current V OUT = 1.8V
Ef ? ciency vs. Load Current V OUT = 1.0V
100
90
80
70
60
R FB1 +R FB2 =10K Ω
V IN =2.7V PSAVE
V IN =2.7V PWM
100
90
80
70
60
R FB1 +R FB2 =10K Ω
V IN =2.7V PSAVE
50
40
V IN =3.6V PSAVE
V IN =4.2V PSAVE
V IN =3.6V PWM
V IN =4.2V PWM
50
40
V IN =3.6V PSAVE
V IN =4.2V PSAVE
V IN =2.7V PWM
V IN =3.6V PWM
30
20
10
30
20
10
V IN =4.2V PWM
0
0.0001
0.001
0.01
I OUT (A)
0.1
1
10
0
0.0001
0.001
0.01
I OUT (A)
0.1
1
10
Ef ? ciency vs. Input Voltage
PWM to PSAVE Hysteresis
100
95
I OUT =750mA (PWM) / 50mA (PSAVE), R FB1 +R FB2 =10K Ω
V OUT =3.3V PWM
1.82
V IN =3.6V, V OUT =1.8V
1.815
90
V OUT =3.3V PSAVE
85
80
V OUT =1.0V PWM
1.81
75
V OUT =1.0V PSAVE
1.805
PSAVE Entry
I OUT Decreasing
PSAVE Exit
I OUT Increasing
70
65
1.8
60
2.4
2.8
3.2
3.6
4.0
V IN (V)
4.4
4.8
5.2
5.6
1.795
0
0.1
0.2
0.3
I OUT (A)
0.4
0.5
0.6
? 2007 Semtech Corp.
12
www.semtech.com
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