参数资料
| 型号： | ISL80121IR50Z |
| 厂商： | Intersil |
| 文件页数： | 7/12页 |
| 文件大小： | 0K |
| 描述： | IC REG LDO 5V 1A 10DFN |
| 标准包装： | 100 |
| 稳压器拓扑结构： | 正，固定式 |
| 输出电压： | 5V |
| 输入电压： | 最高 6V |
| 电压 - 压降（标准）： | 0.09V @ 1A |
| 稳压器数量： | 1 |
| 电流 - 输出： | 1A（最小值） |
| 电流 - 限制（最小）： | 660mA |
| 工作温度： | -40°C ~ 125°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 10-VFDFN 裸露焊盘 |
| 供应商设备封装： | 10-DFN（3x3） |
| 包装： | 管件 |
ISL80121-5
Typical Operating Performance
T J = +25°C, I L = 0A. (Continued)
Unless otherwise noted: V IN = 5.4V, V OUT = 5.0V, C IN = C OUT = 10μF,
1.0
0.9
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
R SET = 20k ?
R SET = OPEN
I OUT = 10mA
I OUT = 500mA
V OUT (50mV/DI V)
0
-40
10
60
110
TEMPERATURE (°C)
FIGURE 7. CURRENT LIMIT vs TEMPERATURE
60
TIME (50μs/DIV)
FIGURE 8. LOAD TRANSIENT RESPONSE
LOAD = 100mA
40
100mA LOAD
1A LOAD
50
40
C OUT = 100μF
C OUT = 47μF
30
30
20
20
10
10
C OUT = 22μF
C OUT = 10μF
0
10
100
1k 10k
100k
1M
0
10
100
1k 10k
100k
1M
(EQ. 1)
I LIMIT = 0.75 + --------------------------
FREQUENCY (Hz)
FIGURE 9. PSRR vs LOAD
Functional Description
Input Voltage Requirements
The ISL80121-5 is optimized for 5V output, and can operate from
input voltages of 5V to 6V. Due to the nature of an LDO, V IN must
be some margin higher than V OUT plus dropout at the maximum
rated current of the application if active filtering (PSRR) is
expected from V IN to V OUT . The generous dropout specification of
this family of LDOs allows applications to design for a level of
efficiency that can accommodate profiles smaller than the
TO220/263.
Programmable Current Limit
The ISL80121-5 protects against overcurrent due to short-circuit
and overload conditions applied to the output. When this
happens, the LDO performs as a constant current source. If the
short-circuit or overload condition is removed, the output returns
to normal voltage regulation operation.
7
FREQUENCY (Hz)
FIGURE 10. PSRR vs C OUT
The current limit is set at 0.75A by default when the I SET pin is
left floating.
This limit can be increased by tying a resistor R SET from the I SET pin to
ground. The current limit is determined by R SET as shown in
Equation 1:
2.9
R SET ( k Ω )
Figure 11 shows the relationship between R SET and the current
limit when the R SET is tied from I SET pin to GND. Do not short this
pin to ground. Increasing the current limit past 1.75A may cause
damage to the part and is highly discouraged.
FN7713.5
June 22, 2012
相关PDF资料 |
PDF描述 |
|---|---|
| ISL8012IRZ-T7A | IC REG BUCK SYNC ADJ 2A 10DFN |
| ISL8013AIRZ-T7A | IC REG BUCK SYNC ADJ 3A 16QFN |
| ISL8013IRZ | IC REG BUCK SYNC ADJ 3A 16QFN |
| ISL8014AIRZ-T7A | IC REG BUCK SYNC ADJ 4A 16QFN |
| ISL8014IRZ | IC REG BUCK SYNC ADJ 4A 16QFN |
相关代理商/技术参数 |
参数描述 |
|---|---|
| ISL80121IR50Z-T | 功能描述:IC REG LDO 5V 1A 10DFN RoHS:是 类别:集成电路 (IC) >> PMIC - 稳压器 - 线性 系列:- 标准包装:2,000 系列:- 稳压器拓扑结构:正，可调式 输出电压:1.2 V ~ 5 V 输入电压:2.5 V ~ 7 V 电压 - 压降（标准）:0.24V @ 800mA 稳压器数量:1 电流 - 输出:800mA 电流 - 限制（最小）:1.2A 工作温度:-40°C ~ 125°C 安装类型:表面贴装 封装/外壳:TO-261-5，TO-261AB 供应商设备封装:SOT-223-5 包装:带卷 (TR) 其它名称:*LP3964EMPX-ADJLP3964EMPX-ADJLP3964EMPX-ADJ-NDLP3964EMPX-ADJ/NOPBTR |
| ISL80121IR50Z-T7A | 制造商:Intersil Corporation 功能描述:SINGLE 0.75A, 5.0V VOUT LDO W/ PROG OCP-3X3 10LD DFN PB-FREE - Tape and Reel 制造商:Intersil Corporation 功能描述:IC REG LDO 5V 1A 10DFN 制造商:INTERSIL 功能描述:ISL80121 Series 2.2 - 6 V Single 0.75 A 0.8 - 5.0 Vout LDO - DFN-10 制造商:Intersil 功能描述:Single, 0.75A, 5V, LDO IC |
| ISL8012EVAL1Z | 功能描述:EVALUATION BOARD FOR ISL8012 RoHS:是 类别:编程器，开发系统 >> 评估板 - DC/DC 与 AC/DC（离线）SMPS 系列:- 产品培训模块:Obsolescence Mitigation Program 标准包装:1 系列:True Shutdown™ 主要目的:DC/DC，步升 输出及类型:1，非隔离 功率 - 输出:- 输出电压:- 电流 - 输出:1A 输入电压:2.5 V ~ 5.5 V 稳压器拓扑结构:升压 频率 - 开关:3MHz 板类型:完全填充 已供物品:板 已用 IC / 零件:MAX8969 |
| ISL8012IRZ | 功能描述:IC REG BUCK SYNC ADJ 2A 10DFN RoHS:是 类别:集成电路 (IC) >> PMIC - 稳压器 - DC DC 开关稳压器 系列:- 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:2,500 系列:- 类型:降压（降压） 输出类型:两者兼有 输出数:1 输出电压:5V，1 V ~ 10 V 输入电压:3.5 V ~ 28 V PWM 型:电流模式 频率 - 开关:220kHz ~ 1MHz 电流 - 输出:600mA 同步整流器:无 工作温度:-40°C ~ 125°C 安装类型:表面贴装 封装/外壳:16-SSOP（0.154"，3.90mm 宽） 包装:带卷 (TR) 供应商设备封装:16-QSOP |
| ISL8012IRZ-T | 功能描述:IC REG BUCK SYNC ADJ 2A 10DFN RoHS:是 类别:集成电路 (IC) >> PMIC - 稳压器 - DC DC 开关稳压器 系列:- 标准包装:1 系列:EZBuck™ 类型:降压（降压） 输出类型:可调式 输出数:1 输出电压:0.8 V ~ 22.1 V 输入电压:3 V ~ 26 V PWM 型:电流模式 频率 - 开关:1.5MHz 电流 - 输出:1.8A 同步整流器:无 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:8-WFDFN 裸露焊盘 包装:剪切带 (CT) 供应商设备封装:8-DFN（2x2） 其它名称:785-1276-1 |
发布紧急采购，3分钟左右您将得到回复。