MAX851 MAXIM [Maxim Integrated Products], MAX851 Datasheet
MAX851
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MAX851 Summary of contents
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... With a well-filtered control voltage (V ), the MAX853 achieves typical output ripple of CTRL less than 1mVp-p. Supply current is 3mA max, and shutdown current is less than 1µA max over temperature (5µA max for MAX851). ________________________Applications Cellular Phones Negative Regulated Power Supplies Personal Communicators, PDAs Wireless Data Loggers ...
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... FB = ∞ or 820Ω, Figure MAX853 4.1V, CTRL = ∞ or 820Ω, Figure MAX850–MAX852, no load, Figure 2b MAX850/MAX853 10V, SHDN = 0V IN MAX851, SHDN = 2V MAX852, OSC low MAX850–MAX852 0V ∞ or 820Ω, Figure MAX853 4.1V, CTRL = ∞ or 820Ω, Figure MAX850–MAX852 ...
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Charge-Pump Power Supplies for GaAsFET Bias __________________________________________Typical Operating Characteristics (Circuit of Figure 2a 6V +25°C, unless otherwise noted OUTPUT VOLTAGE vs. OUTPUT CURRENT -4.16 -4.15 -4.14 -4.13 -4.12 -4.11 -4.10 2.0 4.0 6.0 8.0 ...
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Low-Noise, Regulated, Negative Charge-Pump Power Supplies for GaAsFET Bias _____________________________Typical Operating Characteristics (continued) (Circuit of Figure 2a 6V +25°C, unless otherwise noted MAX850–MAX852 OUTPUT NOISE AND RIPPLE 10 s/div V = 6.0V ...
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... Charge-Pump Power Supplies for GaAsFET Bias _____________________________Typical Operating Characteristics (continued) (Circuit of Figure 2a 6V +25°C, unless otherwise noted MAX850/MAX851/MAX853 START-UP FROM SHUTDOWN 200 s/div CIRCUIT OF FIGURE 2a 6.0V -4.1V OUT LINE-TRANSIENT RESPONSE 2ms/div V = -4.08V 5mA, AC COUPLED OUT OUT _______________________________________________________________________________________ Low-Noise, Regulated, Negative ...
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... NEGOUT by a capacitive charge pump. This voltage is then regulated by an internal lin- C1+ CHARGE PUMP C1- MAX850 MAX851 MAX852 NEGOUT N SHDN (MAX850) SHDN (MAX851) OSC (MAX852) -1.28V REF GND Figure 1a. MAX850–MAX852 Block Diagram 6 ______________________________________________________________________________________ NAME FUNCTION C1+ Positive terminal for C1 C1- ...
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... MAX851). The MAX850 and MAX853 have an active-low TTL logic level SHDN input, whereas the MAX851 has an active-high SHDN input. To shut down the MAX852, set the OCSC input to a logic-low level. The device is powered up by the resumption of the clock signal. ...
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... Information 0.127mm 0.004in ______________________________________________________________________________________ ___________________Chip Topography C1+ C1- NEGOUT SHDN (MAX850/853) SHDN (MAX851) OSC (MAX852) 0.085" (2.159mm) TRANSISTOR COUNT: 164 SUBSTRATE CONNECTED TO IN DIM MIN A 0.053 A1 0.004 B 0.014 C 0.007 D 0.189 E ...