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| 型号： | MAX8510ETA33+T |
| 厂商： | Maxim Integrated |
| 文件页数： | 6/10页 |
| 文件大小： | 0K |
| 描述： | IC REG LDO 3.3V .12A 8-TDFN |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 2,500 |
| 稳压器拓扑结构： | 正，固定式 |
| 输出电压： | 3.3V |
| 输入电压： | 最高 6V |
| 电压 - 压降（标准）： | 0.12V @ 120mA |
| 稳压器数量： | 1 |
| 电流 - 输出： | 120mA（最小） |
| 电流 - 限制（最小）： | 130mA |
| 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 |
| 供应商设备封装： | 8-TDFN-EP（2x2） |
| 包装： | 带卷 (TR) |
Ultra-Low-Noise, High PSRR,
Low-Dropout, 120mA Linear Regulators
Pin Description
PIN
MAX8510
MAX8511
MAX8512
NAME
FUNCTION
SC70
TDFN
-EP
SC70
TDFN
-EP
SC70
TDFN
-EP
1
2
3
4
—
5
—
5
3
4
2
—
7
1, 6, 8
1
2
3
—
—
5
4
5
3
4
—
—
7
1, 2, 6,
1
2
3
—
4
5
—
5
3
4
—
2
7
1, 6, 8
IN
GND
SHDN
BP
FB
OUT
N.C.
Unregulated Input Supply
Ground
Shutdown. Pull low to disable the regulator.
Noise Bypass for Low-Noise Operation. Connect a 10nF capacitor
from BP to OUT. BP is shorted to OUT in shutdown mode.
Adjustable Output Feedback Point
Regulated Output Voltage. Bypass with a capacitor to GND. See the
Capacitor Selection and Regulator Stability section for more details.
No connection. Not internally connected.
Exposed Pad (TDFN Only). Internally connected to GND. Connect
—
—
—
—
—
—
EP
to a large ground plane to maximize thermal performance. Not
intended as an electrical connection point.
Detailed Description
The MAX8510/MAX8511/MAX8512 are ultra-low-noise,
low-dropout, low-quiescent current linear regulators
designed for space-restricted applications. The parts
are available with preset output voltages ranging from
1.5V to 4.5V in 100mV increments. These devices can
supply loads up to 120mA. As shown in the Functional
Diagram, the MAX8510/MAX8511 consist of an innova-
tive bandgap core and noise bypass circuit, error
amplifier, P-channel pass transistor, and internal feed-
back voltage-divider. The MAX8512 allows for
adjustable output with an external feedback network.
The 1.225V bandgap reference is connected to the
error amplifier’s inverting input. The error amplifier com-
pares this reference with the feedback voltage and
amplifies the difference. If the feedback voltage is
lower than the reference voltage, the pass-transistor
gate is pulled low. This allows more current to pass to
the output and increases the output voltage. If the feed-
back voltage is too high, the pass transistor gate is
pulled high, allowing less current to pass to the output.
The output voltage is fed back through an internal resis-
Internal P-Channel Pass Transistor
The MAX8510/MAX8511/MAX8512 feature a 1 Ω (typ)
P-channel MOSFET pass transistor. This provides seve-
ral advantages over similar designs using a PNP pass
transistor, including longer battery life. The P-channel
MOSFET requires no base drive, which considerably
reduces quiescent current. PNP-based regulators waste
considerable current in dropout when the pass transis-
tor saturates. They also use high base-drive current
under heavy loads. The MAX8510/MAX8511/MAX8512
do not suffer from these problems and consume only
40μA of quiescent current in light load and 220μA in
dropout (see the Typical Operating Characteristics).
Output Voltage Selection
The MAX8510/MAX8511 are supplied with factory-set
output voltages from 1.5V to 4.5V, in 100mV increments
(see Ordering Information). The MAX8512 features a
user-adjustable output through an external feedback
network (see the Typical Operating Circuits).
To set the output of the MAX8512, use the following
equation:
R 1 = R 2 X ?
- 1 ?
tor voltage-divider connected to the OUT pin.
An external bypass capacitor connected to BP
(MAX8510) reduces noise at the output. Additional
? V OUT
? V REF
?
?
blocks include a current limiter, thermal sensor, and
shutdown logic.
where R2 is chosen to be less than 240k Ω and V REF =
1.225V. Use 1% or better resistors.
6
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| MAX8510ETA45+ | 制造商:Rochester Electronics LLC 功能描述: 制造商:Maxim Integrated Products 功能描述: |
| MAX8510ETA45+T | 制造商:Rochester Electronics LLC 功能描述: 制造商:Maxim Integrated Products 功能描述: |
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| MAX8510EXK12+T | 功能描述:低压差稳压器 - LDO 120mA Linear Regulator RoHS:否 制造商:Texas Instruments 最大输入电压:36 V 输出电压:1.4 V to 20.5 V 回动电压（最大值）:307 mV 输出电流:1 A 负载调节:0.3 % 输出端数量: 输出类型:Fixed 最大工作温度:+ 125 C 安装风格:SMD/SMT 封装 / 箱体:VQFN-20 |
| MAX8510EXK15+T | 功能描述:低压差稳压器 - LDO 120mA Linear Regulator RoHS:否 制造商:Texas Instruments 最大输入电压:36 V 输出电压:1.4 V to 20.5 V 回动电压（最大值）:307 mV 输出电流:1 A 负载调节:0.3 % 输出端数量: 输出类型:Fixed 最大工作温度:+ 125 C 安装风格:SMD/SMT 封装 / 箱体:VQFN-20 |
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