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参数资料
| 型号： | MIC2182-5.0BSM |
| 厂商： | Micrel Inc |
| 文件页数： | 3/28页 |
| 文件大小： | 0K |
| 描述： | IC REG CTRLR BUCK PWM CM 16-SSOP |
| 标准包装： | 77 |
| PWM 型： | 电流模式 |
| 输出数： | 1 |
| 频率 - 最大： | 330kHz |
| 占空比： | 86% |
| 电源电压： | 4.5 V ~ 32 V |
| 降压： | 是 |
| 升压： | 无 |
| 回扫： | 无 |
| 反相： | 无 |
| 倍增器： | 无 |
| 除法器： | 无 |
| Cuk： | 无 |
| 隔离： | 无 |
| 工作温度： | -40°C ~ 85°C |
| 封装/外壳： | 16-SSOP（0.209"，5.30mm 宽） |
| 包装： | 管件 |
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MIC2182
Pin Description
Micrel
Pin Number
1
2
3
4
5
6
7 (fixed)
7 (adj)
8
9
10
11
12
13
14
15
16
Pin Name
SS
PWM
COMP
SGND
SYNC
EN/UVLO
VREF
FB
CSH
VOUT
VIN
VDD
PGND
LSD
BST
VSW
HSD
Pin Function
Soft-Start (External Component): Connect external capacitor to ground to
reduce inrush current by delaying and slowing the output voltage rise time.
Rise time is controlled by an internal 5 μ A current source that charges an
external capacitor to V DD .
PWM/Skip-Mode Select (Input): Low sets PWM-mode operation. 1nF
capacitor to ground sets automatic PWM/skip-mode selection.
Compensation (Output): Internal error amplifier output. Connect to capacitor
or series RC network to compensate the regulator control loop.
Small Signal Ground (Return): Route separately from other ground traces to
the ( – ) terminal of C OUT .
Frequency Synchronization (Input): Optional. Connect to external clock
signal to synchronize the oscillator. Leading edge of signal above the
threshold terminates the switching cycle. Connect to SGND if unused.
Enable/Undervoltage Lockout (Input): Low-level signal powers down the
controller. Input below the 2.5V threshold disables switching and functions
as an accurate undervoltage lockout (UVLO). Input below the threshold
forces complete micropower (< 0.1 μ A) shutdown.
Reference Voltage (Output): 1.245V output. Requires 0.1 μ f capacitor to
ground.
Feedback (Input): Regulates FB pin to 1.245V. See “ Application Information ”
for resistor divider calculations.
Current-Sense High (Input): Current-limit comparator noninverting input. A
built-in offset of 100mV between CSH and V OUT pins in conjunction with the
current-sense resistor set the current-limit threshold level. This is also the
positive input to the current sense amplifier.
Current-Sense Low (Input): Output voltage feedback input and inverting
input for the current limit comparator and the current sense amplifier.
[Battery] Unregulated Input (Input): +4.5V to +32V supply input.
5V Internal Linear-Regulator (Output): V DD is the external MOSFET gate
drive supply voltage and an internal supply bus for the IC. Bypass to SGND
with 4.7 μ F. V DD can supply up to 5mA for external loads.
MOSFET Driver Power Ground (Return): Connects to source of synchro-
nous MOSFET and the ( – ) terminal of C IN
Low-Side Drive (Output): High-current driver output for external synchronous
MOSFET. Voltage swing is between ground and V DD .
Boost (Input): Provides drive voltage for the high-side MOSFET driver. The
drive voltage is higher than the input voltage by V DD minus a diode drop.
Switch (Return): High-side MOSFET driver return.
High-Side Drive (Output): High-current driver output for high-side MOSFET.
This node voltage swing is between ground and V IN + 5V – V diode drop .
April 22, 2004
3
M9999-042204
相关PDF资料 |
PDF描述 |
|---|---|
| MIC2182-5.0BM TR | IC REG CTRLR BUCK PWM CM 16-SOIC |
| MIC2182-5.0BM | IC REG CTRLR BUCK PWM CM 16-SOIC |
| MIC2182-3.3BSM TR | IC REG CTRLR BUCK PWM CM 16-SSOP |
| MIC2182-3.3BSM | IC REG CTRLR BUCK PWM CM 16-SSOP |
| MIC2182-3.3BM TR | IC REG CTRLR BUCK PWM CM 16-SOIC |
相关代理商/技术参数 |
参数描述 |
|---|---|
| MIC2182BM | 功能描述:IC REG CTRLR BUCK PWM CM 16-SOIC RoHS:否 类别:集成电路 (IC) >> PMIC - 稳压器 - DC DC 切换控制器 系列:- 标准包装:4,000 系列:- PWM 型:电压模式 输出数:1 频率 - 最大:1.5MHz 占空比:66.7% 电源电压:4.75 V ~ 5.25 V 降压:是 升压:无 回扫:无 反相:无 倍增器:无 除法器:无 Cuk:无 隔离:无 工作温度:-40°C ~ 85°C 封装/外壳:40-VFQFN 裸露焊盘 包装:带卷 (TR) |
| MIC2182BM TR | 功能描述:IC REG CTRLR BUCK PWM CM 16-SOIC RoHS:否 类别:集成电路 (IC) >> PMIC - 稳压器 - DC DC 切换控制器 系列:- 标准包装:4,000 系列:- PWM 型:电压模式 输出数:1 频率 - 最大:1.5MHz 占空比:66.7% 电源电压:4.75 V ~ 5.25 V 降压:是 升压:无 回扫:无 反相:无 倍增器:无 除法器:无 Cuk:无 隔离:无 工作温度:-40°C ~ 85°C 封装/外壳:40-VFQFN 裸露焊盘 包装:带卷 (TR) |
| MIC2182BSM | 功能描述:DC/DC 开关控制器 High EfficiencySynchronous Buck Controller SSOP Pkg RoHS:否 制造商:Texas Instruments 输入电压:6 V to 100 V 开关频率: 输出电压:1.215 V to 80 V 输出电流:3.5 A 输出端数量:1 最大工作温度:+ 125 C 安装风格: 封装 / 箱体:CPAK |
| MIC2182BSM TR | 功能描述:DC/DC 开关控制器 High EfficiencySynchronous Buck Controller SSOP Pkg RoHS:否 制造商:Texas Instruments 输入电压:6 V to 100 V 开关频率: 输出电压:1.215 V to 80 V 输出电流:3.5 A 输出端数量:1 最大工作温度:+ 125 C 安装风格: 封装 / 箱体:CPAK |
| MIC2182BSMTR | 制造商:Rochester Electronics LLC 功能描述: 制造商:RF Micro Devices Inc 功能描述: |
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