Search for LDO input negative

richard armitage

Prodigy 50 points

Other Parts Discussed in Thread: LM9070, LM9071, LP2957A, LP2957, LP2952-N, LP2953

How do I search for LDOs that support significant negative voltages like LM9070 with -26V

over 3 years ago

0 Prakash Lakhit over 3 years ago

TI__Expert 5346 points

Richard,

You can use our webpage and choose the filter option Vin (Min) (V)

https://www.ti.com/power-management/linear-regulators-ldo/products.html#p182=Negative%20Output;Negative%20and%20Positive&p238min=-40;-26&sort=p238min;asc

Regards,

Prakash L

0 richard armitage over 3 years ago in reply to Prakash Lakhit

Prodigy 50 points

I want +5V out but input to be tolerant of -26V like LM9070

+1 Prakash Lakhit over 3 years ago in reply to richard armitage

TI__Expert 5346 points

Richard,

The lowest we have with that criteria is -20V. Below are the devices.

https://www.ti.com/power-management/linear-regulators-ldo/products.html#p238max=5;125&p238min=-26;-20&sort=p238min;asc

Regards,

Prakash L

0 richard armitage over 3 years ago in reply to Prakash Lakhit

Prodigy 50 points

Why is LM9070 not listed?

0 Prakash Lakhit over 3 years ago in reply to richard armitage

TI__Expert 5346 points

Richard,

Just realized you are looking for Absolute max and not operating range. Only LM9071 meets that requirements. Our search doesn't have option to look for Absolute max ratings.

	LM9070	LM9071	LP2957A	LP2957	LP2952-N	LP2953
AEC Q100	NO	NO	NO	NO	NO	NO
Output Options	Fixed Output	Fixed Output	Fixed Output	Fixed Output	Adjustable Output, Fixed Output	Adjustable Output, Fixed Output
Iout (Max) (A)	0.25	0.25	0.25	0.25	0.25	0.25
Vin (Max) (V)	26	26	30	30	30	30
Vin (Min) (V)	5.3	5.3	-20	-20	-20	-20
Vout (Max) (V)	5	5	5	5	29	29
Vout (Min) (V)	5	5	5	5	1.23	1.23
Fixed Output Options (V)	5	5	5	5	3.3, 5	3.3, 5
Enable	NO	NO	YES	YES	YES	YES
Power Good	NO	NO	NO	NO	NO	NO
Output Capacitor Type	Non-Ceramic	Non-Ceramic	Non-Ceramic	Non-Ceramic	Non-Ceramic	Non-Ceramic
PSRR @ 100KHz (dB)	-	-	14	14	32	32
Noise (uVrms)	-	-	320	320	80	80
Accuracy (%)	3	3	3	2	3	3
Vdo (Typ) (mV)	800	800	470	470	470	470
Iq (Typ) (mA)	4	4	0.15	0.15	0.13	0.13
Thermal Resistance θJA (°C/W)	80	80	60	60	77	42
Min Package Area (mm2)	153.924	154.8384	86.0552	154.8384	59.4	59.4
Package Type	DDPAK/TO-263	DDPAK/TO-263	DDPAK/TO-263, TO-220	DDPAK/TO-263	SOIC	SOIC

Thanks,

Prakash L

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