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參數(shù)資料
| 型號(hào)： | MAX1935ETA |
| 廠商： | MAXIM INTEGRATED PRODUCTS INC |
| 元件分類： | 基準(zhǔn)電壓源/電流源 |
| 英文描述： | Fixed-Point Digital Signal Processor 532-FCBGA |
| 中文描述： | 0.8 V-4.5 V ADJUSTABLE POSITIVE LDO REGULATOR, 0.4 V DROPOUT, PDSO6 |
| 封裝： | 3 X 3 MM, 0.80 MM PITCH, THIN, DUAL, QFN-6 |
| 文件頁(yè)數(shù)： | 8/10頁(yè) |
| 文件大?。?/td> | 245K |
| 代理商： | MAX1935ETA |
M
500mA, Low-Voltage Linear Regulator
in Tiny QFN
8
_______________________________________________________________________________________
a direct heat conduction path from the die to the PC
board. Connect the exposed backside pad and GND to
the system ground using a large pad or ground plane,
or multiple vias to the ground plane layer.
The MAX1935 delivers up to 0.5A(RMS) and operates
with input voltages up to 5.5V, but not simultaneously.
High output currents can only be sustained when input-
output differential is within the limits outlined.
Applications Information
Capacitor Selection and Regulator
Stability
Connect a 1μF capacitor between IN and ground and a
10μF low equivalent series-resistance (ESR) capacitor
between OUT and ground. The input capacitor (C
IN
)
lowers the source impedance of the input supply.
Reduce noise and improve load-transient response,
stability, and power-supply rejection by using larger
output capacitors. The output capacitor
’
s (C
OUT
) ESR
affects stability and output noise. Use output capacitors
with an ESR of 0.1
or less to ensure stability and opti-
mum transient response. Surface-mount ceramic
capacitors have very low ESR and are commonly avail-
able in values up to 10μF. Connect C
IN
and C
OUT
as
close to the MAX1935 as possible.
Noise, PSRR, and Transient Response
The MAX1935 is designed to operate with low dropout
voltages and low quiescent currents, while still
maintaining good noise, transient response, and AC
rejection. See the
Typical Operating Characteristics
for
a plot of Power-Supply Rejection Ratio (PSRR) vs.
Frequency. When operating from noisy sources,
improved supply-noise rejection and transient response
can be achieved by increasing the values of the input
and output bypass capacitors and through passive-
filtering techniques. The MAX1935 load-transient
80mV
SHDN
IN
IN
POK
ON
OFF
C
IN
1
μ
F
OUT
OUT
C
OUT
10
μ
F
THERMAL
SENSOR
V
OUT
0.8V TO 3.3V
SET
MOSFET
DRIVER WITH
I
LIM
SHUTDOWN
LOGIC
V
0.8V
ERROR
AMPLIFIER
GND
R
POK
100k
LOGIC SUPPLY
VOLTAGE (V
OUT
)
93% V
REF
TO
μ
C
MAX1935
PRESET MODE
V
IN
2.25V TO 5.5V
Figure 1. Functional Diagram
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| MAX1937 | Two-Phase Desktop CPU Core Supply Controllers with Controlled VID Change |
| MAX1937EEI | Two-Phase Desktop CPU Core Supply Controllers with Controlled VID Change |
| MAX1938 | Two-Phase Desktop CPU Core Supply Controllers with Controlled VID Change |
| MAX1938EEI | Two-Phase Desktop CPU Core Supply Controllers with Controlled VID Change |
| MAX1939 | Two-Phase Desktop CPU Core Supply Controllers with Controlled VID Change |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MAX1935ETA+ | 制造商:Maxim Integrated Products 功能描述:LDO REG 0.8V TO 4.5V 0.5A 8TDFN EP - Rail/Tube |
| MAX1935ETA+T | 功能描述:低壓差穩(wěn)壓器 - LDO 500mA RoHS:否 制造商:Texas Instruments 最大輸入電壓:36 V 輸出電壓:1.4 V to 20.5 V 回動(dòng)電壓（最大值）:307 mV 輸出電流:1 A 負(fù)載調(diào)節(jié):0.3 % 輸出端數(shù)量: 輸出類型:Fixed 最大工作溫度:+ 125 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-20 |
| MAX1935ETA15 | 制造商:Maxim Integrated Products 功能描述:500MA LOW VOLTAGE LINEAR REGULATOR IN TINY QF - Rail/Tube |
| MAX1935ETA15+ | 制造商:Maxim Integrated Products 功能描述:REG LDO LIN FIX POS 1.5V 0.5A 8TDFN EP - Rail/Tube |
| MAX1935ETA15+T | 功能描述:低壓差穩(wěn)壓器 - LDO 500mA RoHS:否 制造商:Texas Instruments 最大輸入電壓:36 V 輸出電壓:1.4 V to 20.5 V 回動(dòng)電壓（最大值）:307 mV 輸出電流:1 A 負(fù)載調(diào)節(jié):0.3 % 輸出端數(shù)量: 輸出類型:Fixed 最大工作溫度:+ 125 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-20 |
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