(China (Mainland))
Product Summary
The max1907aetl-t is a buck-topology, step-down, switch-mode, power-supply controller that generates logic-supply voltages in battery-powered systems. The max1907aetl-t includes 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. The applications of the max1907aetl-t are Notebook and Subnotebook Computers, PDAs and Mobile Communicators and Desktop CPU Local DC-DC Converters.
Parametrics
max1907aetl-t absolute maximum ratings: (1)V+ to GND: -0.3V to +36V; (2)PGND to GND: ±0.3V; (3)VL to GND: -0.3V to +6V; (4)BST3, BST5 to GND: -0.3V to +36V; (5)CSH3, CSH5 to GND: -0.3V to +6V; (6)FB3 to GND: -0.3V to (CSL3 + 0.3V); (7)FB5 to GND: -0.3V to (CSL5 +0.3V); (8)LX3 to BST3: -6V to +0.3V; (9)LX5 to BST5: -6V to +0.3V; (10)REF, SYNC, SEQ, STEER, SKIP, TIME/ON5, SECFB, RESET to GND: -0.3V to (VL + 0.3V); (11)VDD to GND: -0.3V to +20V; (12)RUN/ON3, SHDN to GND: -0.3V to (V+ + 0.3V); (13)12OUT to GND: -0.3V to (VDD + 0.3V); (14)DL3, DL5 to PGND: -0.3V to (VL + 0.3V); (15)DH3 to LX3: -0.3V to (BST3 + 0.3V); (16)DH5 to LX5: -0.3V to (BST5 + 0.3V).
Features
max1907aetl-t features: (1)97% Efficiency; (2)4.2V to 30V Input Range; (3)2.5V to 5.5V Dual Adjustable Outputs; (4)Selectable 3.3V and 5V Fixed or Adjustable Outputs (Dual Mode); (5)12V Linear Regulator; (6)5V/50mA Linear Regulator Output; (7)Precision 2.5V Reference Output; (8)Programmable Power-Up Sequencing; (9)Power-Good (RESET) Output; (10)Output Overvoltage Protection; (11)Output Undervoltage Shutdown; (12)333kHz/500kHz Low-Noise, Fixed-Frequency Operation; (13)Low-Dropout, 98% Duty-Factor Operation; (14)2.5mW Typical Quiescent Power.
Diagrams
