L9758 Datasheet, PDF (1/29 Pages) STMicroelectronics – Multiple supply for engine control

L9758
Multiple supply for engine control
Features
■ Buck converter pre-regulated supply rated for a
minimum of 2 A (RMS)
■ Optional Boost converter for low battery
conditions
■ 5 V, 2% @ 1 A, V_DD5 low dropout (LDO)
regulator
■ Programmable 3.3 V or 2.6 V, 2% @ 1 A, V_DDL
LDO regulator with external pass transistor
■ Programmable microcontroller core voltage
LDO regulator, V_CORE 2% @ 1 A with external
voltage divider and pass transistor
■ Programmable 1 V or 1.5 V, 10% @ 10 mA,
standby memory regulator (V_KAM)
■ Programmable 3.3 V or 2.6 V, 10% @ 10 mA
alternate standby regulator (VSTBY)
■ Four 5 V ± 7 mV @ 50 mA protected tracking
regulators, one of them with selectable external
voltage reference.
■ Independent reset signals, RST5 and RSTL for
the V_DD5, V_DDL supplies.
■ Independent standby voltage monitor
STANDBY_OK
■ Two power supply enable signals for different
voltage level signals
Table 1. Device summary
Order code
Temperature range
L9758
-40 °C to +125 °C
PowerSO-36
■ Battery voltage thresholding - IGN
■ Logic level thresholding - PSU_EN
Description
The L9758 is a multiple output voltage regulator
utilizing linear, switchmode (buck and boost) and
tracking regulators to support high end
automotive microcontrollers used in powertrain
applications.
The L9758 provides two standby power regulators
as well as controllable LDO regulators.
The L9758 has power on reset functionality and
controlled slew rate of the V_DD5, V_DDL and
V_CORE.
Package
PowerSO-36
Packing
Tube
November 2010
Doc ID 14273 Rev 3
1/29
www.st.com
1