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参数资料
| 型号： | SP6651AER-L |
| 厂商： | Exar Corporation |
| 文件页数： | 3/16页 |
| 文件大小： | 0K |
| 描述： | IC REG BUCK SYNC ADJ 0.8A 10DFN |
| 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： | 1 V ~ 5.5 V |
| 输入电压： | 2.7 V ~ 5.5 V |
| 电流 - 输出： | 800mA |
| 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-VFDFN 裸露焊盘 |
| 包装： | 散装 |
| 供应商设备封装： | 10-DFN（3x3） |
| 其它名称： | 1016-1404 |
PIN DESCRIPTION
PIN NUMBER
1
2
3
4
5
6
7
8
9
10
D1
D0
PIN NAME
PV IN
V IN
BLON
D1
D0
FB
V OUT
GND
P GND
LX
DESCRIPTION
Input voltage power pin. Inductor charging current passes through this pin.
Internal supply voltage. Control circuitry powered from this pin.
Open drain battery low output. (V IN -V O ) less than 300mV pulls this
node to ground. (V IN -V O ) above threshold, this node is open.
Digital mode control input. See table I for definition.
Digital mode control input. See table I for definition.
External feedback network input connection. Connect a resistor from
FB to ground and FB to V OUT to set the output voltage. This pin
regulates to the internal bandgap reference voltage of 0.8V.
Output voltage sense pin. Used by the timing circuit to set minimum on
and off times.
Internal ground pin. Control circuitry returns current to this pin.
Power ground pin. Synchronous rectifier current returns through this pin.
Inductor switching node. Inductor tied between this pin and the output
capacitor to create regulated output voltage.
0
0
1
1
0
1
0
1
Shutdown. All internal circuitry is disabled and the power switches are opened.
Device enabled, falling UVLO threshold =2.70V
Device enabled, falling UVLO threshold =2.85V
Device enabled, falling UVLO threshold =3.00V
Table 1. Operating Mode Definition
FUNCTIONAL DIAGRAM
DRVON
VOLOW
Vin
V OUT
PV IN
TONOVER
MIN Ton
Internal Supply
TONOVER Min Ton
Min Ton = K ON /(V IN -V OUT )
M
1
OVR_I
Vos
REF + - REF'
V RAMP
VOLOW
+
C
-
R
S
Q
_
Q
DRVON
DRIVER
ILIM/M
+
-
C
FB
+
- FB'
RST
DRVON
OVR_I
LX
D0
D1
Ref
Block
REF
UVLO
TSD
BLANK
One-Shot
=100ns
+
-
C
Zero_X
P GND
GND
ILIM/M
DRVON
T OFF =
K OFF /V OUT
OVR_I
V OUT
V IN
300mV
- +
+
-
C
BLON
BLANK
BLANK = Tblank(=100ns) or Toff = Koff/Vout
UVLO
Date: 5/25/04
SP6651A High Efficiency 800mA Synchronous Buck Regulator
3
? Copyright 2004 Sipex Corporation
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相关代理商/技术参数 |
参数描述 |
|---|---|
| SP6651AER-L/TR | 功能描述:DC/DC 开关控制器 High Eff 800mA Synchronous 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 |
| SP6651AEU | 制造商:SIPEX 制造商全称:Sipex Corporation 功能描述:Evaluation Board Manual |
| SP6651AEU/TR | 制造商:SIPEX 制造商全称:Sipex Corporation 功能描述:High Efficiency 800mA Synchronous Buck Regulator Ideal for portable designs powered with Li Ion battery |
| SP6651AEU-L | 功能描述:DC/DC 开关控制器 High Eff 800mA Synchronous 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 |
| SP6651AEU-L/TR | 功能描述:DC/DC 开关控制器 High Eff 800mA Synchronous 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 |
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