Datasheet MAX1735 (Maxim)
| Fabricante | Maxim |
| Descripción | 200mA, Negative-Output, Low-Dropout Linear Regulator in SOT23 |
| Páginas / Página | 10 / 1 — 200mA, Negative-Output, Low-Dropout. Linear Regulator in SOT23. MAX1735. … |
| Formato / tamaño de archivo | PDF / 310 Kb |
| Idioma del documento | Inglés |
200mA, Negative-Output, Low-Dropout. Linear Regulator in SOT23. MAX1735. General Description. Features
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19-1783; Rev 1; 11/03
200mA, Negative-Output, Low-Dropout Linear Regulator in SOT23 MAX1735 General Description Features
The MAX1735 negative-output, low-dropout linear regu- ♦
Guaranteed 200mA Output Current
lator operates from a -2.5V to -6.5V input and delivers a guaranteed 200mA with a low 80mV dropout. The high- ♦
Low 80mV Dropout Voltage at 200mA
accuracy (±1%) output voltage is preset or can be ♦
Low 85µA Quiescent Supply Current
adjusted from -1.25V to -5.5V with an external resistive voltage-divider. ♦
Low 1nA Current Shutdown Mode
An internal N-channel MOSFET allows for a low 85µA ♦
Stable with 1µF COUT
quiescent current virtually independent of the load, ♦
PSRR >60dB at 100Hz
making this device ideal for battery-powered portable equipment, such as PDAs, mobile phones, cordless ♦
Thermal Overload Protection
phones, and wireless data modems. ♦
Short-Circuit Protection
The device is available in several preset output voltage versions: -5.0V, -3.0V, and -2.5V. All versions offer a ♦
-5.0V, -3.0V, or -2.5V Output Voltage
1nA low-power shutdown mode, short-circuit protec-
or Adjustable (-1.25V to -5.5V)
tion, and thermal overload protection. The device is ♦
Tiny SOT23-5 Package
offered in a tiny 5-pin SOT23 package.
Applications Ordering Information
Disk Drives
PIN- PART TEMP RANGE
Modems
PACKAGE
Instrumentation Amplifiers MAX1735EUK50-T -40°C to +85°C 5 SOT23-5 Notebook Computers MAX1735EUK30-T -40°C to +85°C 5 SOT23-5 Mobile and Cordless Telephones MAX1735EUK25-T -40°C to +85°C 5 SOT23-5 PCMCIA Cards GaAsFET Bias
Output-Voltage Selector Guide
Mobile Wireless Data Modems
PRESET OUTPUT SOT TOP
PDAs and Palmtop Computers
PART VOLTAGE MARK
MAX1735EUK50-T -5.0V or adj ADOZ MAX1735EUK30-T -3.0V or adj ADOY MAX1735EUK25-T -2.5V or adj ADOX
Typical Operating Circuit Pin Configuration
-5V, -3V, OR -2.5V TOP VIEW -6.5V TO -2.5V OUTPUT INPUT UP TO 200mA IN OUT GND 1 5 OUT CIN COUT MAX1735 MAX1735 IN 2 ON GND OFF SHDN SET ON SHDN 3 4 SET GND
SOT23-5 ________________________________________________________________ Maxim Integrated Products 1 For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at 1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.
200mA, Negative-Output, Low-Dropout Linear Regulator in SOT23 MAX1735 General Description Features
The MAX1735 negative-output, low-dropout linear regu- ♦
Guaranteed 200mA Output Current
lator operates from a -2.5V to -6.5V input and delivers a guaranteed 200mA with a low 80mV dropout. The high- ♦
Low 80mV Dropout Voltage at 200mA
accuracy (±1%) output voltage is preset or can be ♦
Low 85µA Quiescent Supply Current
adjusted from -1.25V to -5.5V with an external resistive voltage-divider. ♦
Low 1nA Current Shutdown Mode
An internal N-channel MOSFET allows for a low 85µA ♦
Stable with 1µF COUT
quiescent current virtually independent of the load, ♦
PSRR >60dB at 100Hz
making this device ideal for battery-powered portable equipment, such as PDAs, mobile phones, cordless ♦
Thermal Overload Protection
phones, and wireless data modems. ♦
Short-Circuit Protection
The device is available in several preset output voltage versions: -5.0V, -3.0V, and -2.5V. All versions offer a ♦
-5.0V, -3.0V, or -2.5V Output Voltage
1nA low-power shutdown mode, short-circuit protec-
or Adjustable (-1.25V to -5.5V)
tion, and thermal overload protection. The device is ♦
Tiny SOT23-5 Package
offered in a tiny 5-pin SOT23 package.
Applications Ordering Information
Disk Drives
PIN- PART TEMP RANGE
Modems
PACKAGE
Instrumentation Amplifiers MAX1735EUK50-T -40°C to +85°C 5 SOT23-5 Notebook Computers MAX1735EUK30-T -40°C to +85°C 5 SOT23-5 Mobile and Cordless Telephones MAX1735EUK25-T -40°C to +85°C 5 SOT23-5 PCMCIA Cards GaAsFET Bias
Output-Voltage Selector Guide
Mobile Wireless Data Modems
PRESET OUTPUT SOT TOP
PDAs and Palmtop Computers
PART VOLTAGE MARK
MAX1735EUK50-T -5.0V or adj ADOZ MAX1735EUK30-T -3.0V or adj ADOY MAX1735EUK25-T -2.5V or adj ADOX
Typical Operating Circuit Pin Configuration
-5V, -3V, OR -2.5V TOP VIEW -6.5V TO -2.5V OUTPUT INPUT UP TO 200mA IN OUT GND 1 5 OUT CIN COUT MAX1735 MAX1735 IN 2 ON GND OFF SHDN SET ON SHDN 3 4 SET GND
SOT23-5 ________________________________________________________________ Maxim Integrated Products 1 For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at 1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.