部品番号
MAX1635A
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Maxim Integrated
MAX1635A データシート - Maxim Integrated
Maxim Integrated
General Description
The MAX1630A–MAX1635A are buck-topology, step down, switch-mode, power-supply controllers that gener
ate logic-supply voltages in battery-powered systems. These high-performance, dual-/triple-output devices include on-board power-up sequencing, power-good signaling with delay, digital soft-start, secondary winding control, low-dropout circuitry, internal frequency-compensation networks, and automatic bootstrapping.
FEATUREs
♦96% Efficiency
♦+4.2V to +30V Input Range
♦2.5V to 5.5V Dual Adjustable Outputs
♦Selectable 3.3V and 5V Fixed or Adjustable Outputs (Dual Mode™)
♦12V Linear Regulator
♦Adjustable Secondary Feedback
(MAX1631A/MAX1634A)
♦5V/50mA Linear Regulator Output
♦Precision 2.5V Reference Output
♦Programmable Power-Up Sequencing
♦Power-Good (RESET) Output
♦Output Overvoltage Protection
(MAX1630A/MAX1631A/MAX1632A)
♦Output Undervoltage Shutdown
(MAX1630A/MAX1631A/MAX1632A)
♦200kHz/300kHz Low-Noise, Fixed-Frequency Operation
♦Low-Dropout, 99% Duty-Factor Operation
♦2.5mW Typical Quiescent Power (+12V Input, Both SMPSs On)
♦4µA Typical Shutdown Current
♦28-Pin SSOP Package
APPLICATIONs
Notebook and Subnotebook Computers
PDAs and Mobile Communicators
Desktop CPU Local DC-DC Converters
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