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| 型号： | MAX1616EUK+T |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 6/8页 |
| 文件大小： | 0K |
| 描述： | IC REG LDO ADJ 30MA SOT23-5 |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 1 |
| 稳压器拓扑结构： | 正，可调式 |
| 输出电压： | 1.24 V ~ 28 V |
| 输入电压： | 4 V ~ 28 V |
| 稳压器数量： | 1 |
| 电流 - 输出： | 30mA |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | SC-74A，SOT-753 |
| 供应商设备封装： | SOT-23-5 |
| 包装： | 标准包装 |
| 产品目录页面： | 1410 (CN2011-ZH PDF) |
| 其它名称： | MAX1616EUK+TDKR |
High-Voltage, Low-Power Linear Regulators
for Notebook Computers
tion is P = I OUT (V IN - V OUT ). The power dissipation at
+70°C ambient is 571mW (see Absolute Maximum
Ratings ). The thermal resistance junction-to-case of the
IN
OUT
OUTPUT
VOLTAGE
SOT23-5 package is 81°C/W, and the maximum safe
junction temperature is +150°C.
MAX1616
R1
The GND pin performs the dual function of providing an
electrical connection to ground and channeling heat
away. Connect GND to ground using a large pad or
ground plane.
6V TO
28V
0.1 μ F
SHDN
GND
FB
R2
6.8 μ F*
__________Applications Information
Setting the MAX1616 Output Voltage
R1 = R2 ? OUT ? 1 ?
Set the MAX1616’s output voltage with two resistors, R1
and R2 (Figure 2). Choose R2 = 250k ? to maintain a
5μA minimum load and calculate R1 using the following
equation:
? V ?
? V FBT ?
where V FBT = 1.24V (typical).
*15 μ F for V OUT <3.3V
Figure 2. MAX1616 Typical Application Circuit
Table 1. Surface-Mount Capacitor
Manufacturers
Capacitor Selection
Use a 0.1μF minimum capacitor on the input. Higher
values will improve line-transient response.
Use 1μF minimum on the output, or 4.7μF for the full
30mA load current (6.8μF, MAX1616). Otherwise, use
1μF plus 0.125μF/mA (0.2μF/μA, MAX1616). For output
voltages less than 3.3V, use 15μF instead of 6.8μF. The
output capacitor’s effective series resistance (ESR) must
be less than 1 ? for stable operation.
TYPE
Electrolytic
Ceramic
MANUFACTURER
AVX
Matsuo
Sprague
AVX
Matsuo
CAPACITOR
TPS series
267 series
593D, 595 series
X7R
X7R
Output Voltage Noise
The MAX1615/MAX1616 typically exhibit 5mVp-p of
noise during normal operation. This is negligible in
Table 2. Component Suppliers
most applications. In applications that include analog-
to-digital converters (ADCs) of more than 12 bits, con-
sider the ADC’s power-supply-rejection specifications.
Transient Response
The Typical Operating Characteristics show the
MAX1615/MAX1616’s load-transient response. Two of
SUPPLIER
AVX
Matsuo
Sprague
PHONE
(803) 946-0690
(714) 969-2491
(603) 224-1961
FAX
(803) 626-3123
(714) 960-6492
(603) 224-1430
the output response’s components can be observed on
the load-transient graph: a DC shift from the output
impedance due to the different load currents, and the
transient response. Typical step changes in the load
current from 10mA to 20mA produce 50mV transients.
Increasing the output capacitor’s value attenuates tran-
sient spikes.
___________________Chip Information
TRANSISTOR COUNT: 386
6
_______________________________________________________________________________________
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